TCLocal

by Karl North

This series of articles is an exploration of designs for agriculture in Tompkins County to approach sustainability in a future of declining access to the cheap energy and other inputs on which our industrialized food system relies. In earlier parts of this series, I proposed principles of agroecosystem design; addressed the key issues of fertility, energy, water, and pest control; and pictured the future county food system as a whole, including its historical context, implications, and the interdependencies among the parts that will make them most effective as an integrated system. I said that providing for the local food needs of urban populations requires a design that integrates three overlapping categories of production systems: urban agriculture systems (many small islands of gardening in the city center), peri-urban agriculture (larger production areas on the immediate periphery), and rural agriculture (feeder farms associated with village-size population clusters in the hinterland of the city but close enough to be satellite hamlets).

In this month’s article I will consider the needs and resources that will shape the design of future agrarian communities sharing a symbiotic relationship with the city of Ithaca and will offer a case study as a design example.

A general agricultural model

In rural parts of the county, space and other resources provide the opportunity to redesign agriculture most fully according to the general integrated system model described in Part Two of this series. Moreover, the many existing or reclaimable wetlands in the county offer the prospect of sustainable systems on the model exemplified in Part Two by the colonial farming system of Concord, Massachusetts. In colonial times, many agrarian communities in the Northeast made this grassland form of chinampa-style agriculture (Part Five) the core of their farming system. Communally managed wetlands were central because they sustainably produced the fertility that drove the system, indirectly via hay and thence manure, and directly from muck dredged from the canals:

These wetlands required considerable hydrological manipulation to make them productive, and they were transformed to a carefully managed resource in many towns. Extensive systems of drainage ditches, sometimes connecting for miles, rendered the meadows firm and accessible for teams during the mowing season, whereas dams, dikes, and road causeways provided hydrological control and augmented fertilization from natural flooding. Mowing, burning, and grazing, in combination with manipulation of the water table, shifted the composition of many wetlands from tree and shrub dominated to a cover of desirable grasses and sedges. The meadows returned a reliable yield of rather coarse hay, along with a rich muck that was cleaned from the ditches in the fall, dried, and carted to the barnyard or plow land.[1]

In land systems both wet and dry, grazing species such as the multi-functional cow formed the core of agriculture in colonial New England and sustainable agroecosystems in Cuba and elsewhere. They will likely be central to rural farming systems designed to survive the petroleum era.

A reconfigured social topography

Changes in rural land use, while not directly the subject of this essay, should be considered when envisioning a new plan for agriculture. If, like earlier societies that lacked fossil fuels, our society must use less energy to feed more people, it will require smaller, denser population centers with residences close to places of work. This constraint applies not only to cities such as Ithaca, but also to peripheral feeder towns and to the social topography of rural agriculture. In the US, cheap energy, cheap land, and the individualist ethic of “every man his castle” modeled on the European ideal of a landed aristocracy spawned a pattern of suburban sprawl on one hand and isolated farms on the other. In recent decades, the farms had to grow larger and even more isolated to survive in an agricultural economy where agribusiness multinationals exert monopoly control.

The traditional pattern in Europe is markedly different: apart from estates left over from feudalism, rural populations in Europe are even now clustered in agricultural towns and villages that include the farm residences and barns of many of the farmers who go out to work the surrounding land.

Energy descent planners in the US, including ecovillage advocates like Ithacan Robert Morache,[2] have made a strong case for converting to the European model of rural population centers, because, unlike suburban sprawl, this model clusters both farm and non-farm rural populations to make efficient use of energy, land, and transportation resources that link to nearby urban centers. Ideally, these farming villages, circled by their farmlands, will replace present configurations of land use, in particular suburbia and many of the remote farms operated on the industrial model, both of which are unlikely to survive the end of the oil era. Whether our society will have the material resources or the political will to make such a complete conversion is an open question at this point. See the TCLocal article Post-Peak Land Use Part 2: The Country for more detail on the farming village model.

Visioning a satellite farming village case: Lansing Landing

Imagine a once-thriving farming village connected to the county seat by good water, rail, and road transport routes that had in later times become a bedroom community. Now revived as a satellite ecovillage, buildings that serve a variety of agricultural, residential, and service functions are densely clustered in a hub surrounded by land devoted to diverse but related farming enterprises. Individual families and private cooperatives manage the enterprises within the general goals and guidelines set by the community and the county. Along with the community’s commercial agricultural output, many households are engaged in homesteading production from kitchen gardens and small-scale animal husbandry. The village is planned with a systems design, well illustrated in the permaculture movement, which uses both food and nonfood species for the greater health of the farming community and its ecosystem: it organizes them functionally, spatially, and temporally in a calendar with a decades-long time horizon to serve this goal.

Today’s ecovillages have made a start on the agro-integrated design that will be required here in the future. Figure 1, based on a study of the Ithaca Ecovillage, demonstrates some of the flows, interdependencies, and synergies that can be captured in a farming ecovillage designed as an integrated system.[3]

Figure 1. Ecovillage interdependencies (drawing courtesy of Jason Fleischer)

Lansing Landing builds on the example of many ecovillages today, but aims for a higher standard of sustainability, including the need for greater heat and energy self-sufficiency; affordability (many ecovillage dwellings are too expensive for the average person); diversity of functions, including farming as the core function; and more complete recycling (how many ecovillages collect and process night soil?). Some of the components and functions present in the community envisioned here attain the high level of integration planned for an agricultural community in the United Kingdom by the Institute for Science in Society, as illustrated in Figure 2.[4]

Figure 2. Functional integration in a planned agricultural community

Fertility. Open, sloping land plays an important role in the village agroecosystem. As described in Part Two, animals graze a hillside system[5] of perennial forages dotted with food-producing trees. Hedgerows crisscross this landscape, surrounding fields and carving them into enclosures of appropriate size. Hedgerows serve many functions: shelterbelts, perennial food species, and fences. They stop erosion, and by so doing even begin the process of reshaping hillsides into arable terraces. Figure 3 is an example of terrace formation from Cuba.

Figure 3. A hedgerow in Cuba stopping soil movement on a slope

The grazing animals participate in a fertility scheme where a surplus of manure is built up as bedding packs in barns where stock is overwintered, then processed in the main village vermicomposting center. This fertility scheme is the foundation of village wealth production, and so ultimately determines its quality of life. Farmers also use the grazing animals to optimize biomass production in row crop acreage whenever the acreage is in a grass rotation.

Along with biodigested humanure from the village and the city of Ithaca, applications of compost made from winter livestock manure and bedding create the tight nutrient cycling that builds and sustains the fertility of the land. Manure and village sewage that is more conveniently handled as liquid is fed through a fuel-producing biodigester, then solids separators followed by cleansing ponds that grow duckweed for high protein animal feed, and finally back to fields as in Figure 2. Village farmers use a sophisticated scheme of fallows, rotations, and winter- and roller-killed cover crops to further control fertility and weeds with minimal tillage.[6]

Water and wood. In Lansing Landing, ponds have been placed high on the hillsides to capture spring water and runoff for many uses: village and livestock supply, water power, and irrigation, to name a few. Lower ponds recapture water for additional uses: recreation, fire protection, and a village reserve. They function as part of a water management array of berms or swales, like the keyline plan described in Part Two, that keep water working within the watershed as long as possible.

Drawdown of forest resources to the point of crisis occurred repeatedly in European and U.S. history before the oil age, when biomass was the main source of energy. Forest cover in Tompkins County dropped from almost 100% in 1790 to 19% by 1900, then increased to 28% by 1938 and to over 50% in 1980.[7] Most of the loss of forest cover can be attributed to a combination of logging for firewood and timber and clearing for livestock production and other agriculture. The much bigger present county population will make far greater demands on forest resources. It would be mistaken, therefore, to assume on the basis of current forest cover that the county can rely on wood for its future energy needs.

The village actively manages enough forestland to do its part in providing county forest product needs, among which firewood for heat and timber for shelter are paramount. By replacing the extremes of no management and monoculture that were luxuries typical of an earlier era, active management stimulates both biodiversity and production in a balance to achieve a wide range of agroforestry goals. Many forests are maintained on ridge tops and uplands for the health of the watershed. Groves near the village center create useful microclimates, temper prevailing winds, and provide for recreation.

Food and Fiber. The imperative of energy efficiency has gradually reconfigured land use in this village to cluster the more intensive agricultural activities in the flat, most fertile land ringing the village center. This circle contains the rotating fields of starch staples, vegetable polycultures, meadows for the most intensive animal husbandry, and fibers like hemp and flax. Its output of foods and fibers that traditionally grow well in the region help ensure the food security of the county.

Crops like flax and hemp, which produce fiber, oil, and other ingredients of manufactured products such as paper, clothing, paints, and preservatives have reappeared as competing petroleum products have disappeared and competition for forest products has increased. Different parts of the hemp plant produce flour and oil for food, paper, and composites, including boards that reduce logging pressure on forests, rope and cloth, lubricants and other petrochemical substitutes, and important nontoxic medicines. Hemp productivity per acre is four times that of sustainably harvested wood, and twice that of cotton-without cotton’s need for pesticides.[8]

Not far from the village is a wetland modified with canals and ponds to grow aquaculture crops. Because of the constant source of crop water, the wetland system is an anchor that guarantees a reliable source of forage and bedding for livestock both in the village and in the peri-urban animal enterprises.

Part of the wetland has been developed into a true chinampa-style production system. As described in Part Two of this series, the chinampa configuration of aquaculture in canals surrounding raised fields is integrated in a way that ensures higher productivity over dry-land agriculture. While most examples of this system come from Central America and Southeast Asia, the system has also succeeded in northern Japan in a water-moderated climate similar to ours in Lansing Landing. Figures 4 and 5 from Japan demonstrate some of the possibilities.[9]

Figure 4. A rice-fish-duck-azolla system. Azolla (duckweed) is a floating fern that fixes nitrogen and produces protein

Figure 5. Material cycles of azolla + loaches + ducks + rice. The system produces rice, duck meat, duck eggs, and fish for a small input of feed

The core of village livestock husbandry is the dairy enterprise, much of which has returned to the energy-efficient model of seasonal, grass-fed milk production from the hillside pastures and hay fields. Breeds chosen to fit the system are hardy, dual-purpose, and smaller than the energy-intensive breeds of the industrial agriculture era that were designed to maximize production at any cost. Cows, sheep, and goats are pastured along with work mules and horses in a multi-species grazing system that benefits from the complementary grazing functions of the different species. Dairy and crop byproducts sustain some pig and chicken production. The level of animal production is determined by the role of animals in supplying ecological services to the community’s agriculture, not by county demand for animal food products, which is currently excessive and unhealthy. At Lansing Landing, the level of production of animal foods is closer to what is needed for a healthy human diet.

Like animal genetics, the genetics of the crops grown by the village have changed to reflect the exigencies of the post-petroleum era. Instead of hybrids that sacrifice local seed control and the resilience that a large gene pool provides, village farmers, employing traditional selection methods, have developed open-pollinated seeds that they can save and share. While yields from savable seeds can rival the productivity of hybrids[10], village farmers have selected for both plant and animal types that balance productivity with traits like hardiness and other low-maintenance characteristics.

Village Enterprises. Even closer to the center, to be within walking distance of their workers, are animal and crop barns, village-scale composting and biogas digester sites, tool manufacture and repair shops, and other agricultural support facilities. One example is a piggery used to turn compost. Fed largely from dairy byproducts and kitchen garbage, its manure in turn feeds a small biogas generator like the one in Figure 6.

Figure 6. Biodigester made with one layer of plastic tubing 1.2 m in diameter and 6 m long, connected to a pig pen with 20 animals and fenced with Mulberry tree. Finca Ecológica Tosoly, UTA Foundation, Guapotá, Santander, Colombia. Photo: Lylian Rodriguez

Processing plants that preserve raw farm products while reducing water content to make them more transportable are village enterprises that serve an important function in the county food system. Examples include the conversion of milk and fruit to aged cheese and preserves and the lumber-drying sheds at sawmills. Near the center of town is the village recreational fish and skating pond, one of the ways a stream running through the valley has been harnessed.

One of the important functions of the village is to recruit and train new farmers from the urban population to run the more labor-intensive agriculture of the new era. An educational complex serves as a public school for the village, an agricultural research and farmer training center, a farm camp for urban youth, and an adult farm camp for harvest volunteers and vacationers from Ithaca. In turn, the village draws on urban populations for short pulses in labor needs, like haying and other harvest activities that must be accomplished in a brief window of opportunity.

Rural agriculture and the county food supply

This series has described three types of area agriculture needed to sustain a county population of 100,000: urban, peri-urban, and rural. Of these, rural agricultural systems will be of primary importance. Urban and peri-urban gardens can provide quantities of fresh vegetables and fruits, but only rural farms have the space to grow enough of the starchy staples like potatoes, grains, beans, and rice that have historically supported urban population densities. Moreover, only rural farms can supply enough of the materials like oils, fibers, and wood that are basic necessities in our cold climate. Agrarian villages, not the urban center, will again become the heart of a relocalized county food system in the coming years.

Notes

[1] Redman, Charles L. and David R. Foster. Agrarian Landscapes in Transition: Comparison of Long-Term Ecological and Cultural Change. Oxford: Oxford University Press, 2008.

[2] Morache’s plan of village clusters in the urban hinterland includes farms, residences for urban workers, and enough commerce to support a population of 450 households. www.chrysalisconcordium.org

[3] A contribution from of one of my students, Jason Fleischer, in a college course on ecological agriculture.

[4] http://www.i-sis.org.uk/DreamFarm2.php

[5] North, Karl. “Optimizing nutrient cycles with trees in pasture fields.” Leisa Magazine, 24/2, June 2008. http://www.leisa.info/index.php?url=getblob.php&o_id=209102&a_id=211&a_seq=0

[6] Pioneered by Pennsylvania vegetable farmers Anne and Eric Nordell and archived in their ongoing column, “Cultivating Questions,” that dates from the 1990s in The Small Farmers Journal, Sisters, Oregon.

[7] Bryce E. Smith, P. L. Marks, and Sana Gardescu. 1993. “Two Hundred Years of Forest Cover Changes in Tompkins County, New York.” Bulletin of the Torrey Botanical Club, Vol. 120, No. 3 (Jul. - Sep., 1993), pp. 229-247.

[8] The 1995 documentary film Hemp Revolution. Anthony Clarke, director.

[9] Furuno, Takao. The Power of Duck. Tasmania: Takari Publications, 2001.

[10] Berlan, Jean-Pierre and R.C. Lewontin, “The Political Economy of Hybrid Corn.” Monthly Review, July-August 1986.

by Karl North

This series of articles is an exploration of designs for agriculture in Tompkins County to approach sustainability in a future of declining access to the cheap energy and other inputs on which our industrialized food system relies. In earlier parts of this series, I proposed principles of agroecosystem design; addressed the key issues of fertility, energy, water, and pest control; and pictured the future county food system as a whole, including its historical context, implications, and the interdependencies among the parts that will make them most effective as an integrated system. I said that providing for the local food needs of urban populations requires a design that integrates three overlapping categories of production systems: urban agriculture systems (many small islands of gardening in the city center), peri-urban agriculture (larger production areas on the immediate periphery), and rural agriculture (feeder farms associated with village-size population clusters in the hinterland of the city but close enough to be satellite hamlets).

In this month's article I will consider the needs and resources that will shape the design of peri-urban agriculture systems around the city of Ithaca, and offer a case study as a design example.

Figure 1. Cooperative farms on the edge of Havana, Cuba

Cities are often ringed with suburbs, parks, and industrial and commercial zones that can be converted to larger, more integrated agricultural systems than densely populated urban neighborhoods (Figure 1). Deer and rodents have proliferated in the urban-suburban boundaries that are excellent edge habitats for these species. Agriculture in these areas will need to achieve deer and rodent control by fencing that is effective against jumping and burrowing and by regulated trapping for meat and hides to eventually reduce populations.

The best candidates for conversion to farming are sites that have good soil and water resources yet are close enough for easy access by urban consumers and potential farm labor. Two such areas on the periphery of Ithaca are the flood plain beside the lake and inlet and the nearest locations on the main existing transport routes, particularly those with existing rail lines, north up the east edge of the lake and south along route 13.

The flood plain

One-sixth of 19th-century Paris was devoted to intensive urban gardens, prominently in the Marais (wetland) on the right bank of the Seine River. Fueled by manure from the city's thousands of working horses, peri-urban gardens fed Parisians with greens, vegetables, and fruits the year around. The history of a similar district on the edge of climatically similar Ithaca indicates its food production potential. This neighborhood was once home to a distinctive waterside community of fisher-farmers who, despite their lower socio-economic status compared to some Ithacans, were able to achieve relative self-sufficiency on the rich alluvial soils and aquatic resources of their neighborhood.

Ithaca has a unique resource in these lakeside and inlet soils. They are potentially the most productive agricultural land in the county when converted to the chinampa-style systems described in Part Two (Figure 2).

Figure 2. Mexico City chinampas

Some of this land may now be “brown fields” of soils that are polluted from years of commercial and industrial use but can be reclaimed biologically. Bioremediation can take various forms. Several years of intensive grazing and repeated trash plowing and replanting of grass cover not only builds soil organic matter rapidly but cleanses it as well by bacterial action as the soils become more biologically active. Instead of normal plowing that buries sod, trash plowing upends it for fast aerobic decomposition. If this is insufficient, raised beds with imported soil are a solution that has worked in many urban locations.

Land use policy for the district would have to change to reflect the food production priorities of the energy descent. Some lands now dedicated to industry, the commercial strip of big box stores, and parts of parks and the golf course will be acknowledged as prime farmland. Figure 3 illustrates examples of potential waterside farm sites.

Figure 3. Examples of potential waterside farm sites on the edge of Ithaca

The politics of conversion of water-side lands to prime food production sites will require a new mindset. Agriculture may be the best use of some of the land now devoted to recreational activities like sailing, picnicking, and golf. Consumers accustomed to shopping in national chain stores will need to learn that they represent what Wendell Berry in The Unsettling of America called an extractive, colonial economy. This economy transfers wealth to metropolitan centers of power from rural peripheries and operates at many scales, from impoverished banana republics like Nicaragua, to shrunken agricultural towns in Nebraska, to the depressed areas of upstate New York. Thus the national chain stores that ring the Ithaca periphery are economic “monocultures” that strip economic wealth from the county just as agricultural monocultures drain fertility from the soil.

Transport route locations

Conversion to more sustainable food production requires more people living closer to food production in order to provide labor and to facilitate nutrient recycling. Energy descent writer Richard Heinberg estimates the need for 50 million farmers in the U.S., up from 2 million today.[1] In a similar assessment, Swedish systems ecologist Folke Günther estimates that the rural farming population needed to support an urban community should be 12 times the urban population. The starting point in our case is a county population of 100,000, of which 30,000 is urban. To achieve the necessary balance, Günther suggests relocation of some urban and close suburban populations to clustered housing in satellite farming villages[2] as older urban housing is replaced by urban gardens. The most economical location for some of these peripheral ecovillages might be in the peri-urban agricultural district along the main transport routes near the city.

Ideally this process would be part of a general physical redesign of both the urban and hinterland communities according to the model that emerged in Europe, where centuries of higher population densities have dictated more careful land use planning. Even today, European towns large and small are characteristically dense clusters of buildings that end abruptly in agrarian vistas.

Visioning a peri-urban case: Waterside Gardens

Commercial strips and malls that typify the urban edge, vacated in the shrinking national economy, are prime candidates for a public takeover that would convert their parking lots to agriculture and the empty buildings to farming and related community uses. To exemplify this conversion, we will envision a farm operated as a commercial cooperative, using a future abandoned Wegmans waterside parking lot and supermarket building (one of the locations outlined in Figure 3). Let's call our imaginary cooperative “Waterside Gardens” (Figure 4).

Figure 4. Waterside Gardens (artist's conception by Jane North)

A policy framework. The dirty little secret of small farms is that they don't make much of a profit in competition with industrialized agriculture. A food policy framework guarantees the economic viability of Waterside Gardens:

• As part of a county-wide green belt policy to stop and convert urban sprawl, the city has remunicipalized most of the inlet area from the lake front to Buttermilk Falls, providing a free lease to co-ops like this one as long as they continue to build food security and food sovereignty in the county.
• In the wake of widespread demand for local food sovereignty, the country has revised the Constitution. As part of a growing reliance on local, county-wide economic policy making, a tariff is now levied on food coming into the county based on food miles and the ability of local agriculture to provide the product.
• A trolley stop on the public light rail line serves the site to bring agricultural inputs to the co-op and consumers to its retail food market.

Models of ecological health and productivity. Waterside Gardens incorporates two highly productive models of small-scale agriculture that have proved themselves to be effective historically in peri-urban agriculture: chinampa-style canal-side gardens (Mexico city)[3] and the French intensive market garden (Paris).[4]

In the gardens that use the inlet directly, hydrologically controlled subcanals between garden beds divert water from the adjacent inlet canal. These alternating strips of water and land crops are managed to make the system highly productive in several ways:

• Constant sub-irrigation of the growing beds;
• Aquaculture production from a self-feeding, integrated system of water plants and animals;
• Surplus fertility from the aquatic system in the form of muck dredged periodically from the canals for the adjacent bed soils;
• Temperature stabilization from the waterways that improves daily crop growth and extends the growing season.

Farther from the water lie the frame and cloche beds characteristic of the French intensive method. Despite the development of biomass-based plastics, competition from higher priority biomass uses like food and heat has prompted a return to the French tradition of glass for frame covers and the bell-shaped cloches that create the microclimates to protect beds and individual plants.

Windmills pump canal water into raised tanks to provide a constant reserve of gravity-fed irrigation water. Adjacent ponds capture and biocleanse storm water that runs off the city's hills, constituting a water reserve that makes the system resilient to drought.

Another input essential to the intensive method is a constant and copious supply of fresh manure that is placed under and around frames and cloches to maintain growing temperatures in these all-season gardens. Initially the only manure source was the small population of livestock that peri-urban production systems can integrate. However, diminishing supplies of fossil fuel and limited supplies of local fuels like biogas from municipal black water processing have driven local transportation partially to rely on animal power. A growing mule population now transports people and produce around the county, much of it efficiently on the rebuilt light rail network. Like other peri-urban farms, this one provides stables for some of the mule contingent in return for the steady supply of hot manure. Their hay is transported by water directly into docks at the garden site from farms around the lake.

Wind protection is part of the intensive gardening system. The old supermarket and the high hedges on the northeast and northwest edges stop the coldest prevailing winds, and low walls throughout the gardens reduce wind at plant level while letting in sun.

While much of the French system is possible in urban agriculture, peri-urban spaces allow its full development as it originally functioned on the outskirts of Paris. This is because its year-round production requires quantities of hot manure as well as the constant attention of full-time gardeners highly skilled in the careful timing of watering, frame and cloche ventilation, and protection of frames from sun and cold. This garden recaptures the full knowledge- and management-intensive qualities that made the Paris market garden system so successful.

A more extensive system. The co-op includes a third, more extensive gardening system to grow crops like roots and tubers that need more space and to integrate small animal production. To fertilize this garden, the co-op manages a facility in which pig turners enhance the vermicomposting of part of the city's segregated organic waste stream.

Originally judged a brownfield, the soil of this part of the market garden spent its first years of conversion to agricultural quality under intensive grazing alternated with heavy applications of compost seeded with fast growing forages in the cleansing process described earlier. Now it consists of beds long enough to be worked by some of the mules housed in the co-op and grassed alleys wide enough to permit farm vehicles and grazing with rabbits and poultry in movable pens, as illustrated in Figure 5. In season, the rabbits thrive on an all-grass diet, and feed for the poultry is supplemented with part of the garbage and worms from compost production. The alleys are lined with composting sheds to which the poultry have access as their grazing pens are moved along the alleys. In all seasons the pigs, poultry, and rabbits consume the co-op's garden waste as one of their roles in the system.

Figure 5. Grass-fed rabbit production at Northland Sheep Dairy, a farm near Tompkins County

The old supermarket now serves many new functions. In addition to the stables, it houses farm tools and machines and harvest and feed storage areas. It also includes community centers to market products from adjacent community gardens, train new farmers, and house full-time farm workers and food processing centers. The south front is a passive solar greenhouse that heats the building and grows vegetable and nursery transplants for the rest of the farm.

Boundaries of the tripartite farm as well as individual beds are specifically designed for multiple functions. They include habitats that attract beneficials and trap pests before they reach food plants; bird and bat houses; flowering plants to attract pollinators; food bearing bushes, trees, and trellises that act as shelter belts against wind and sun; and walkways and benches to function as a parkland that brings urban residents into contact with the gardens.

As with much of peri-urban agriculture, the size of this co-op creates heavier seasonal labor needs than city gardens. With a large city population close at hand, however, it manages to attract enough seasonal workers by paying them with credits they can use when they purchase the food products of the enterprise.

Notes

[1] http://www.energybulletin.net/node/22584

[2] http://www.holon.se/folke/lectures/Ruralisation-filer/v3_document.htm

[3] http://en.wikipedia.org/wiki/Chinampa

[4] Weathers, John. 1909. French Market Gardening. http://ia331426.us.archive.org/3/items/frenchmarketgard00weatrich/frenchmarketgard00weatrich.pdf

by Karl North

This series of articles is an exploration of designs for agriculture in Tompkins County to approach sustainability in a future of declining access to the cheap energy and other inputs on which our industrialized food system relies. In earlier parts of this series, I proposed principles of agroecosystem design, addressed the key issues of fertility, energy, water, and pest control, and pictured the future county food system as a whole, including its historical context, its implications, and the interdependencies among the parts that will make them most effective as an integrated system. I said that providing for the local food needs of urban populations requires a design that integrates three overlapping categories of production systems: urban agriculture systems (many small islands of gardening in the city center), peri-urban agriculture (larger production areas on the immediate periphery), and rural agriculture (feeder farms associated with village-size population clusters in the hinterland of the city but close enough to be satellite hamlets).

In this month’s article I will consider the needs and resources that will shape the design of urban agriculture systems in the city of Ithaca, and offer a case study as a design example.

The high institutional and population density of urban areas promotes labor-intensive production methods, community regeneration through cooperative management, and transport efficiency for agricultural inputs and products. The ability to have more farmers per acre permits the kind of management-intensive system that maximizes productivity through close monitoring and good timing throughout the growing season. Increased headcount allows a division of labor to manage diversified production integrated into one system. One neighbor could grow rabbits (Figure 1) and provide manure and meat while another grows vegetables and a third concentrates on fruits.

Figure 1. Urban rabbit hutches in Cuba

The abundance of city institutions presents opportunities to build gardening appendages on existing social structures organized for other purposes. In the sudden energy shortage that transformed Cuba’s agriculture, schools, workplaces, and even governmental institutions were quick to become partly self-sufficient in food production. As awareness builds that gardening is a form of physical education whose value increases relative to, say, football, schools will see the need to devote more playground space to school gardens.

Intensive Design

The high productivity of urban agriculture has proven itself in many cities, notably in the severe food crisis that Cuban cities experienced in the 1990s.[1] Productivity in urban agriculture comes in great part from intensive design and management. The greater labor required for intensive production is potentially available in urban agriculture and can make it highly productive in several ways. Space can be used more efficiently than in extensive row cropping. Intensive growers can plant many vegetables in permanent beds instead of rows, minimizing walk or machine alleys between rows and concentrating soil building in the beds rather than the whole field. Also, farmers can plant crops of fast maturing foods, like salad or cooking greens, in spaces between large, slower maturing ones like broccoli. This practice of planting so-called catch crops makes more intensive use of limited space during the growing season. Tiered design that uses light efficiently is possible. Crops can be grown in companion polycultures to trade ecological services; legumes like pole beans fixing nitrogen for the corn that provides the pole, or a row of peas climbing a wall while fertilizing a row of carrots. Maximum use and close management of protective devices like frames and cloches permit not only season extension but also more effective temperature and moisture control of plant growth during the regular season. Finally, the consumers of urban-grown food are close enough to permit effective recycling of nutrients into the garden soil via backyard compost piles and composting toilets, partially or totally eliminating the need for space for compost crops.

For these reasons, urban spaces can be nearly 15 times more productive than rural farms.[2] In World War II, residential “Victory gardens” in the US produced a quantity of fresh vegetables equal to the total commercial output of these foods.

The Ithaca Urban Environment

Ithaca’s topography of central flatlands surrounded by steep hills presents distinctive opportunities and constraints for urban garden design in each area. Josh Dolan’s map of current and potential community and school garden sites in Tompkins County illustrates some of the possibilities.[3]

Figure 2. Community and School Gardens of Tompkins County. Blue = community gardens; yellow = school and educational gardens; green = farmers’ markets; light blue = sites that have expressed an interest in gardens or have been identified as potential sites for new community gardens. Click or see link in footnote for more detail

On the hillsides, some food production will require terracing, but the many south and west facing retaining walls and house walls in residential neighborhoods on Ithaca’s steep hills provide opportunities for vertical growing. This will maximize use of space, which is important in urban gardens. Vine plants can sometimes grow either from the top of the wall down or from the bottom up. Twine or poles laid against the walls help plants like tomatoes and beans get a grip going up, and planks or slates shoved between wall stones support heavy fruits like melons or squash as they grow bigger.

Projections of climate change for the Northeast include a 20 to 30 percent increase in winter precipitation over this century, but hotter summers when water is needed for growing, suggesting a greater need for seasonal water capture.[4]

The hills of Ithaca have great potential for gravity irrigation if water is distributed downhill through many residential gardens. Pools at each site can store water to provide gravity irrigation to terraces via berms and swales. Institutional sites might justify tapping this gravity flow to power small grain mills or electric generators.

On the city’s flatlands, current uses of many commercial sites will become obsolete in the energy descent. Energy inefficient businesses and parking lots will become prime sites for takeover by guerilla gardeners, building pressure for legalization. Water is relatively abundant in our environment, but because of its importance for highly productive food growing, water reserves collected from roof drains into garden-side irrigation pools will be vital to build resilience into urban production systems[5]. More resilience can be achieved by routing roof water into attic or upper story tanks for household use and then channeling the overflow into irrigation pools.

Visioning an urban agriculture case

A group of neighbors has decided to form a loose gardening cooperative, because a pooled effort will solve the core production problems of fertility, water, pest control, and energy more efficiently than would completely individual projects as well as promoting the sharing of equipment and pooling of knowledge. In individual backyards they have been growing a few vegetables and fruits, often in containers they can bring inside for extended season growing[6]. Many neighbors have enough small stock such as rabbits, chickens, and pigeons to process organic kitchen garbage; however, their yards are mostly too small for the amount of food they want to produce as a co-op.

The neighborhood group has agreed to devote most backyard space to compost production and the collection of irrigation water for the co-op. They have quietly attached composting toilets to their houses and built filter/digesters for household greywater and little ponds to store greywater and roof water, while currying support for legalization when the time is politically ripe. Eventually the city created property ownership and lease contracts with management agreements that provide incentives for ecological management, like composting of residential waste streams and maintenance of food perennials on the property.

To make space for the main garden the neighborhood co-op razed a building abandoned as too costly to renovate for energy efficiency, and depaved an adjacent parking lot that became obsolete when the city got serious about public transportation. The land owners were happy to lend the properties in long-term agreements because the city had created land tax credits for land lent for urban agriculture. As in the urbanization of agriculture in Cuba (Figure 3), our neighborhood co-op often left rubble in place and created raised beds over it with soil imported from nearby rural farms and compost from backyard and municipal production sites. This photo also illustrates the use of a pest insect trap crop of corn planted at the end of the raised beds containing other crops.

Figure 3. Urban coop garden, Pinar del Rio, Cuba

The co-op employs a master gardener to design and manage the garden to include the polycultures, rotations of crops among beds, water, compost, and mulch acquisition and application that will maximize the health of the system. Because it integrates a greater diversity of crops and habitats, this system achieves a higher level of sustainability than community gardening by individual allotment. Each household is assigned responsibility for working a section of the garden under the direction of the manager. As different crops or polyculture combinations rotate through each section, all neighbors gradually have become skilled at growing all the foods that the co-op produces. The manager arranges for extra labor when necessary, as in planting and harvesting, for compost and water from backyard ponds, and for supplemental compost from the city’s public composting enterprise.

The project design includes a number of elements not yet found in many urban gardens: hot and cold frames and nursery beds to feed transplants into the garden; glass bed covers to provide season extension; habitats for beneficials and other native species; insectaries, bird houses and trap and repellent crops for pest control; border hedges of nut and fruit bushes and trees and other perennial crops; and artistic corners in which to rest and enjoy the garden.

The neighborhood co-op provides regular shares of harvests to its members, and sells surplus produce in a market stand on site using the local county currency. Some members operate small processing enterprises to preserve co-op output for the neighborhood.

This model of urban agriculture may work in a number of locations, but many other models will be needed that are adapted to conditions of specific sites or parts of the city.

[1] Murphy, Catherine. 1999.Cultivating Havana: Urban Agriculture and Food Security in the Years of Crisis. Development Report Number 12. Food First: Institute for Food and Development Policy.http://www.foodfirst.org/pubs/devreps/dr12.pdf

[2] Ableman, Michael. “Agriculture’s Next Frontier: How Urban Farms Could Feed the World.” Center for Urban Agriculture at Fairview Gardens. 2007.http://www.fairviewgardens.org/pub_next_frontier.html

[3] http://maps.google.com/maps/ms?hl=en&ie=UTF8&msa=0&msid=112967405631074443966.00046b4b4eb5e29a3ab69&t=h&ll=42.435707,-76.459758&spn=0.014475,0.026994&z=15

[4] Confronting Climate Change in the Northeast. Summary of a 2007 study conducted in part by the Union of Concerned Scientists.http://www.climatechoices.org/assets/documents/climatechoices/new-york_necia.pdf

[5] Two resources on water management for urban agricultural use: ftp://ftp.fao.org/docrep/FAO/011/ak003e/ak003e05.pdf; http://www.ruaf.org/sites/default/files/Chapter%209.pdf

[6] http://www.gardeningknowhow.com/urban/designing-your-container-vegetable-garden.htm

by Krys Cail

This article follows up on two other recent articles about solid biomass fuel as a source of heat:

(October 2009) Burning Transitions: How Planned, Localized, Sustainable Non-food Biomass Utilization Can Help Ease Energy Descent and Mitigate Global Climate Change [1]

(January 2010) Heating with Biomass in Tompkins County [2]

This installment adds discussion of combined heat and power applications. While continuing to focus on local efforts and local projects, the article also examines the role of local and larger-scale governmental entities in supporting the development of the biomass industry in Tompkins County and considers some roles played by local businesses and nonprofits. Some local demonstration projects that were briefly mentioned in the earlier articles are more fully considered here.

Abbott/Lund Hansen LLC

The U.S., with relatively abundant biomass resources, is far behind some other countries in the use of those resources for heat and power production. This has the perverse effect of encouraging the export of US biomass resources to European countries, where both governments and businesses have embraced the development of technology and infrastructure to accommodate the use of non-fossil fuels for these purposes. Conversely, the technology needed to use North American biomass resources has often had to be imported from Europe.

In any comparison of biomass use across nations, Denmark stands out for the success it has had in weaning itself from a petroleum-dependent infrastructure. The initial motivation for this development was not an abundance of available alternative resources, but, rather, a serious brush with scarcity in the wake of the first oil shock. However, at this point, the success that Denmark has attained in maximizing efficiency in combined heat and power generation is also making Danish technology attractive elsewhere around the world. Recently, a local businessman and real estate developer and a Danish engineer established a new company aimed at emulating the Danish approach to combined heat and power.

In 2010, the new company Abbott/Lund Hansen LLC was formed, joining a Danish district heating specialist with a Tompkins County developer. District heating, as a concept, is the idea of heating a number of adjacent or nearby buildings with one central heating plant. In Denmark, super-efficient heating plants may be operated on biomass fuel (pellets or chips) or traditional fuels like natural gas. Combined heat and power (CHP) is also common in the Danish systems, with the heat that is generated in the course of making electricity for a district captured and used in heating the district. Below is a synopsis of Abbott/Lund Hansen LLC’s work, in the words of its founders.

Bruce Abbott and Thomas Lund Hansen recently formed a marketing and lobbying firm that is advocating for district energy in Tompkins County. A local example of district energy is at Cornell University. In 1888 Cornell built a coal fired steam heat only system for its campus. This year that system has been converted to a natural gas fired steam combined heat and power (CHP) system. Cornell’s CHP system will not only supply heat to buildings on campus but it will supply 80% of Cornell’s electricity needs. The only difference between the Cornell system and the systems that Abbott/Lund Hansen are advocating is that the Cornell system relies on steam and the Abbott/Lund Hansen systems relies on hot water. For the end user, hot water CHP systems are safer, more reliable, and cost less then comparable steam systems.

Combined Heat and Power systems, in general, increase energy efficiency by 30% while decreasing energy cost by 15%. There are other advantages for building CHP systems in Tompkins County. CHP systems can drastically reduce greenhouse gas emissions because they can burn a variety of fuels. For example, using biomass as fuel would reduce [greenhouse gas emissions] to virtually zero for the buildings that are connected to a biomass CHP system. Another advantage CHP systems would have in Tompkins County is that there would be numerous job opportunities building and operating these systems…

Bruce Abbott stresses that the jobs created by district generation/CHP will remain in the local economy and can’t be transferred elsewhere, including the jobs harvesting and manufacturing biomass fuel. The company envisions a number of scenarios under which district generation/CHP could offer the local economy job-creation and economic development benefits. These major building projects require significant capital investment to attain a scale that can realize the efficiencies inherent in their design and reap the employment and economic development benefits. One approach that Abbott has advocated for Tompkins County is to have the AES Cayuga power plant establish and operate these districts in areas where they are practicable, such as the Downtown Ithaca Business District or the South Hill Office Campus. The new company has also suggested that Tompkins County (or the Town or City of Ithaca) might invest in the development of heating districts. The new business, Abbott/Lund Hansen, is also pursuing other opportunities to design these combined heat and power generation districts in the region; it has just signed a contract to do the preliminary design for a biomass (wood-chip) CHP system that will supply the electricity, heat, and air-conditioning for 700,000 square feet of mixed use commercial and residential space in rural Pennsylvania.

It will be interesting to see what types of entities—businesses/developments, educational institutions and other nonprofits, or governmental bodies—will have the vision, the capital and the sites to try this new approach to providing heat and power. The adoption of these highly efficient systems in the private sector can be advanced through governmental incentives to adopt the technology, which is how the Danish system came into being. What is needed is the will to transition, and a plan for accomplishing the switch. Bruce Abbott puts it succinctly:

In summary, moving toward a less costly, local, and reliable energy solution that improves energy security and environmental impact is possible today. What is required is a well-written plan and the political will to put it into practice.

Cayuga Nature Center—Heated by Biomass

Some movement exists in New York State government to subsidize the adoption of biomass heat. The New York State Energy Research and Development Authority (NYSERDA) funded a demonstration project to show how efficient and cost-effective biomass heat can be, right here in Tompkins County at the Cayuga Nature Center. The multi-fuel (woodchip or pellet) boiler used in this conversion to biomass heat was the very first unit produced by a Schenectady firm, ACT Bioenergy[3]. The firm has licensed European multi-fuel boiler technology to produce these units in New York State from all U.S.-made materials.

The 10,000 square foot Cayuga Nature Center lodge houses both educational and administrative offices for the nonprofit organization. Installation of the containerized boiler and adjacent fuel storage areas did not require any construction work or disruption of programs in the program and office space. Existing hot-water radiators were used in the retrofit, and all conversion work was kept in the basement area of the building. The three existing propane boilers were kept in place to act as an emergency back-up system. The fuel and the boiler itself, in its containerized outdoor location, are an additional educational display along a path that also includes other educational exhibits and gorge overlooks used in Nature Center programs.

Figure 1. The propane-fired system that formerly heated the 10,000 square foot Cayuga Nature Center. The system is kept on standby as a backup

Figure 2. Exterior of new woodchip fired boiler. The wooden feed bin on the right holds about a week's worth of fuel at maximum boiler output. An auger automatically conveys fuel from the hopper to the boiler

Figure 3. The boiler can produce 400,000 BTU per hour from wood chips

Figure 4. Interior of feed bin (almost empty) showing the sweeper that moves chips across the auger trough

Figure 5. Chips are fed from below to the center of a grate at the bottom of the combustion chamber. Optimal combustion is achieved by controlling the air supplied through holes in the chip bed and holes on the sides of the combustion chamber. The ash produced by this process is less than one percent of the fuel burned

Figure 6. A 12 x 40 foot shed (on the left) stores chips to periodically replenish the feed bin (on the right). The shed was constructed with volunteer help from Cornell Engineers for a Sustainable World

Figure 7. Left: The storage shed in winter and the front loader used to transfer chips to the feed bin; Right: Receiving a 10 ton (50 cubic yard) chip delivery from Mesa Reduction of Auburn, NY. The chips are made from the waste streams of regional lumber mills. In the future, some fuel will come from CNC and other nearby forests

This project would not have been possible without the determined and persistent effort of TC Local contributor and local biomass proponent Tony Nekut. NYSERDA was eager to have a demonstration project, and the Cayuga Nature Center was eager to solve the problem of high propane heat bills, but it took a local activist to bring the need and those with the funding together to make it work. While fuel costs have not yet been tabulated for the year, it is estimated that the new boiler will result in a 50 to 75 percent savings in fuel.

The CNC installation is part of a larger NYSERDA effort to support the evaluation and improvement of biomass-fired heating equipment. According to a recent press release,[4]

The program will clear a path for New York-grown fuels, create new manufacturing jobs, and improve environmental performance of biomass technologies….

ACT’s project at the Cayuga Nature Center in Ithaca, NY, will demonstrate a fully automated, 90 percent efficient wood-gasification boiler technology that is proven in Europe and adapted for the U.S. market. These systems have emissions that are significantly better than conventional wood boilers and comparable to typical oil or gas boilers. Mid-sized buildings (10–100,000 sq.ft.) represent 90 percent of the boiler market in the U.S., and are prime targets for these wood systems which can achieve rapid paybacks when replacing fossil-fuel boilers.

More information on this project is available at http://www.actbioenergy.com/brochure/Cayuga%20wood%20boiler%20photos.pdf

Town of Danby Highway Barns—Project to Retrofit ACT Bioenergy Boiler Using American Reinvestment and Recovery Act (ARRA) Funds

The Town of Danby has a high level of interest in biomass as a heat and energy source. Not only are Town elected officials and staff excited about the potential of making use of a local resource in moving away from fossil fuels, the residents of the Town are also very involved. Citizen involvement is primarily through the Danby Land Bank Cooperative,[5] which “provides an organization and an infrastructure that allows rural property owners to use their fields and forests for grass and wood pellet production.” In the neighboring township of Caroline, Cayuga Biomass Energy, a small group of entrepreneurs that includes TC Local contributor Tony Nekut, is attempting to start a biomass pellet manufacturing plant.

The projected cost to convert the Town’s 10,000 square foot office and truck bay complex to wood chip heat is about $267,000. While the projected fuel cost savings are estimated to be 50 percent or greater, a capital improvement of that scale is difficult for a small rural township to budget or buy bonds for; usually, help from a higher level of government is needed for improvements on this scale. In this case, the Town administration decided to pursue funding under the American Reinvestment and Recovery Act (ARRA)-the federal stimulus package.

As in the Cayuga Nature Center project, biomass proponents helped to bring the need and the source of funds together—in this case, Tony and I helped the Town of Danby make application for these funds by coordinating grant-writing and project specification tasks.[6] In March of 2010, NYSERDA awarded these federal funds to Danby. For its part in the project, the Town will contribute some highway worker hours to the excavation and concrete work needed to construct a covered fuel storage area. The boiler unit, which is almost identical to the one in use at Cayuga Nature Center, will be installed by a regional heating contractor, and the jobs producing biomass fuel will be hyper-local—ideally, in Danby or adjoining Caroline. In fact, the Town Highway crews plan to produce some of the wood chip fuel themselves in the process of keeping the roadways clear. This is a good use of a federal program aimed at maintaining and creating jobs in economically distressed counties like Tompkins.

RPM Ecosystem’s Combined Heat and Power Project/Biomass Demo Plantations

PJ Marshall, one of the principals of RPM Ecosystems[7], wanted to provide the heat and power to operate the firm’s Town of Dryden greenhouses and company headquarters while remaining carbon-neutral. And she wanted to do so using only the products RPM grows—native hardwood trees. Additionally, she sought to develop and demonstrate a biomass plantation system using native hardwood trees planted specifically for a combination fuel/lumber harvest, staged to produce first fuel wood and then lumber, over a number of years, while maximizing forest canopy and carbon sequestration throughout the process. RPM pursued this plan through local Congressman Michael Arcuri, looking to secure a federal appropriation to fund the project.

The company made good progress in developing the project and getting the appropriation drafted last year (2009) but then encountered difficulties when Congress passed a rule requiring that no appropriations go directly to private companies. RPM regrouped and engaged TCAD[8] as a fiscal sponsor for the projects. Heather Filiberto, Director of Economic Development Services at TCAD, describes the agency and its role in the project this way:

TCAD, the County’s lead economic development agency, is a non-profit organization whose mission is to build a thriving and sustainable economy that improves the quality of life in Tompkins County by fostering the growth of business and employment. In situations in which governmental funding must be received by a non-profit, TCAD has stepped in and sponsored applications on behalf of local entrepreneurs in the past. TCAD has agreed to sponsor this request for federal funding on behalf of RPM.

In order to succeed in getting an appropriation in the federal budget for a project, the applicants must obtain letters of support from a wide variety of local officials. The typical support letter is prepared by the applicant in overall substance, then transferred to letterhead and signed by the various elected officials with only slight modifications. The projects are briefly described along with the expected benefit to the community. The following excerpt, from Senator James Seward’s letter, demonstrates the approach.

I am writing to express my strong support for Tompkins County Area Development and RPM Ecosystems Ithaca LLC’s, innovative Dryden, New York, green building and renewable energy project titled Distributive Biomass Combined Heat and Power for CO2-Neutral Facility Operations….

…this project helps install and commission a 200KWe distributive biomass combined heat and power set for sustainable/renewable electricity and thermal energy production in support of RPM Ecosystems Ithaca LLC’s operations.…

TCAD, RPM Ecosystems, and Congressman Arcuri are all hopeful that the funding for this project will be included in this year’s federal budget. Still, the project must wait to commence until the political process runs its course.

Individual Homeowners Can Access Governmental Biomass Incentives

Some government-assisted financing options exist for individual homeowners interested in converting some or all of the heat or hot water produced in their homes to biomass fuels. Anyone who is in a position to benefit from a tax incentive can receive up to 30 percent of the cost of a pellet stove (not to exceed $1,500) in tax savings. A website is available to help with determining whether this program meets your needs,[9] or contact the Pellet Fuels Institute.[10] Local pellet stove merchants can also assist in understanding the program and which units qualify. Unfortunately, stoves and furnaces that burn cordwood are not eligible for these incentives.

NYSERDA also has some homeowner financing programs[11] for the installation of a pellet stove and for the energy efficiency retrofits that can be accomplished in conjunction with a transition to a heat source based on certain kinds of renewable fuel. In general, cordwood stoves and furnaces are ineligible for these programs. For homeowners with low or moderate income, low-interest financing programs, and even some grants, are available through Ithaca Neighborhood Housing Services.[12] Similar programs are available through Tompkins Community Action,[13] and some similar services may be available through Better Housing for Tompkins County[14] as a part of home rehabilitation. All of these housing agencies should be contacted to determine what programs might work best for your individual needs.

Most programs will require that you obtain a professional energy audit to determine which energy improvements may be most cost-effective for you. Even if you don’t use an incentive program, an energy audit can help you to tackle energy investments in the order that gives you the most benefit for the money invested. Conservation measures and efficiency upgrades are often more cost-effective than investing in a renewable fuel heat source. The housing agencies linked above can provide referrals for homeowners of all incomes to qualified energy audit providers and Building Performance Institute (BPI) certified contractors. In most cases, only BPI-certified contractors are eligible to perform work that will qualify for incentives. These energy auditors and BPI-certified contractors are also trained to make use of up-to-date methods and products for saving energy and using renewable fuels.

Funding and Finagling: Negotiating the Political Process to Transition to Biomass

Local, state, and federal governments are involved in energy policy and the implementation of energy projects in a number of different and evolving ways. Even a very savvy and motivated community such as Tompkins County may find it difficult to work the system well enough to get sufficient funding and financing for transitions to carbon-neutral and renewable fuel sources. Over time, government-funded energy efforts at conservation, which should always be the first step in a sustainable energy plan, have become institutionalized in a way that makes them more accessible to homeowners, businesses, and other community institutions. However, renewable energy conversions remain new enough that the path to government sponsorship is not always clear-in both the sense of “visible” and “free of obstructions.”

Some motivated activists claim that the slow grinding of the gears in the public sector is not worth the patience to accommodate. The fastest and best approach when projects are low-tech and inexpensive may be a community barn-raising kind of effort. However, commercial-scale projects in large buildings, or the highly efficient district heat and power systems that group many buildings in a densely developed area on one heating system, can’t easily be accomplished via small-scale community efforts. Both funding and implementation will typically require some level of governmental assist or substantial private investment of capital.

How do thinkers, planners, and activists work most effectively to bring about a transition away from fossil fuel dependence? Understanding the ways that the layers of government divvy up responsibility, and how they do and don’t collaborate, is an important place to start when developing a strategy.

Planning efforts go on at all levels of government—federal, state, regional, county, and municipal. Professional planners are often those who elected officials turn to for information and explanation of policy options, even though elected officials themselves enact policy. It is productive to educate both planners and elected officials about new policies on renewable energy enacted by other governments and to call their attention to demonstrations of new technology. By definition, planners are charged with taking the long view of our situation, and may be the first to show interest in emerging technology and trends. Eventually, however, elected officials must choose to implement new projects.

Those of us, planners or otherwise, who take a long view of our local adjustment to energy descent may consider funding for transitions away from dependence on fossil fuel to be one of the most vital things our governments can do to assure our future security. Implementing that transition can be accomplished by educating elected officials and the professional planners who advise them, and also by applying for and using the funds (grants and capital) and financing (low-interest loans and tax-exempt bonds) for the purpose when such are available. The process is likely to be difficult, even frustrating at times. To lead the way to a renewable-fuels future, we should focus on creating the will, knowledge, and capacity to make good use of every opportunity for implementing projects. The more we show each other how to heat with renewable fuels, the more examples of successful projects will be available to help others understand the benefits. Eventually, we will reach a tipping point at which the logic of using sustainable, renewable sources for our heat and power will make more sense than fighting one another for a rapidly-diminishing stock of polluting fossil fuels.

Notes

[1] http://tclocal.org/2009/10/burning_transitions.html

[2] http://tclocal.org/2010/01/heating_with_biomass_in_tompki.html

[3] http://www.actbioenergy.com/

[4] http://www.actbioenergy.com/news.html#

[5] http://www.danbylandbank.com/site/home.html

[6] Contact Tony Nekut or Krys Cail through the comments section linked to this article if your Tompkins County municipality or school district is interested in pursuing biomass heat funding; we are interested in sharing information.

[7] http://www.rpmecosystems.com/

[8] http://www.tcad.org/

[9] http://energytaxincentives.org/consumers/heating-cooling.php

[10] http://www.pelletheat.org/3/residential/taxCredit.html

[11] http://www.getenergysmart.org/SingleFamilyHomes/ExistingBuilding/HomeOwner/Financing.aspx

[12] http://www.ithacanhs.org/pdf/LendingServicesWeb020210.pdf

[13] http://www.tcaction.org/energy.htm

[14] http://www.betterhousingtc.org/bet2_rehab.html

by Karl North

In Part One of this series, I proposed principles of agroecosystem design for growers to follow if agriculture is to approach sustainability in a future of declining access to the cheap energy and other inputs on which our industrialized food system relies. I said that providing for the local food needs of urban populations requires a design that integrates three overlapping categories of production systems: urban agriculture systems (many small islands of gardening in the city center), peri-urban agriculture (larger production areas on the immediate periphery), and rural agriculture (feeder farms associated with village-size population clusters in the hinterland of the city but close enough to be satellite hamlets). In Part Two I addressed four key issues — fertility, energy, water, and pest control — and the kinds of agroecosystems that might incorporate sustainable solutions.

In this month’s article I will picture the future county food system as a whole: its historical context and implications, and interdependencies among the parts that will make them most effective as an integrated system.

In future parts of this County Food Production series I will offer visions of each type of production system that incorporate as many of the sustainable design solutions from Part Two as seem applicable to each environment. Finally, I will explore aspects of policy and social organization that could facilitate the necessary transformation to a relocalized food system.

As the most ambitious part of this visioning project, the scenarios in this article and future ones carry the most risk of vulnerability and even failure due to historical contingencies that are impossible to predict and even hard to envisage at this juncture. Therefore, instead of a full-scale scenario for the county that could be misinterpreted as a plan, I will describe ideal types of urban, peri-urban, and rural systems to illustrate what might be beneficial or even necessary to feed the population of the county.

Learning from history: pre-fossil fuel food miles

How relocalized does a food economy need to be in the energy descent era? Throughout history, food security everywhere has been heavily dependent on a reliable supply of staple foods, especially starch staples like root crops, pulses (beans, peas, etc.) and grains. Our region once was self-sufficient in staples but gradually imported most of them. To regain food security, we must establish a measure of food sovereignty as local policy, especially in staple foods.

A look at NYS history is a reminder that easily conserved and transportable food commodities traveled far before the railroads existed, and to a degree even before the canal system was built.

Pre-canal overland commerce in high-value imports and industrial goods, paid for in farm products, was common across New York State. The account in Figure 1 shows the sorts of goods that flowed in both directions.[1]

Figure 1. Goods that historically made up the bulk of commercial trade in 19th century rural New York

By 1830 the New York canal system linked most agricultural depots of the state to waterways--the Great Lakes and lesser lakes like Lake Champlain and the Finger Lakes to the main state rivers--and thence to the population centers and to foreign trade. Figure 2 is an account of the primary commodities in the lake traffic through Buffalo in 1847 and provides a rough measure of the tonnage and kinds of foods that moved long distances in that era.[2]

Figure 2. Great Lakes traffic arriving at Buffalo, 1847

In the late 19th century the railroads took over most transport of farm products out of rural areas; even certain bulkier items that travel well like potatoes, onions, cabbage, and livestock were included in state-wide commerce and beyond.

Apart from food security, the stimulus to the local economy and the provision of fresh, superior quality food are good reasons to produce as much food locally as possible. But consideration of the above historical perspective suggests that the question of how much we need to depend on locally produced food turns on the ability of the state to promote the revival of the railroads or, failing that, at least the canal system. The existence of long-distance trade before the era of energy ascent in products like grain that travel well suggests that during energy descent widespread trade in some agricultural products will persist despite rising transport costs.

However, many energy descent analysts[3] believe that the US economy has been so undermined by internal and external debt and dependence on fossil fuels that state and federal institutions will eventually be unable to maintain the present social order, much less take on the reconstruction of pre-oil transportation networks. This scenario suggests the need for a high level of local food production. Analysis of probable futures at this macro-level clearly suffers from the uncertainty surrounding so many of the key variables. Perhaps the best insight one can draw from the records of earlier food systems is a ranking of agricultural products for localization, according to their sensitivity to a shrunken distance economy.

Even assuming the construction or restoration of energy-efficient transport networks, other concerns ultimately will force increasing dependence on locally grown food. A sustainable food system must recycle nutrients. The historical expansion of US food miles relied first on the depletion of fertile virgin soils, then on cheap fertilizer and other manufactured inputs. Without the crutch of increasingly expensive inputs, declining agricultural yields in farms distant from consumers will force large foodsheds to shrink over time. Even proposals for the reorganization of the national and global food system into bioregional systems or foodsheds larger than counties have ignored the nutrient cycling imperative, which becomes increasingly difficult as food is grown farther from where it is eaten. This raises the question of how to feed large cities in a purported Northeast foodshed and still sustain the health of the soil that grows the food.

As early as 1862, scientists were writing of a metabolic rift that had developed between city and countryside.[4] The rift was both biological and social; the nutrient cycle had broken as the nutrients that fed urbanites no longer returned to the rural lands where the food was grown, and urbanites had lost appreciation of the fact that urban prosperity ultimately depends on the health of the land and its natural systems.

The social/cultural rift may be the biggest obstacle to change. The very existence of cities depends on the accumulation of a surplus of wealth from agriculture and other raw material extraction from the land. The temporary ability of humanity to substitute fossil fuel dependent technologies for human labor and the soil fertility and other services originally supplied by natural systems created the illusion that human labor and ecological services are of little importance in agriculture, and therefore have little bearing on the question of the survival of cities. Technology, apparently an urban product, became paramount in the hierarchy of urban cultural values. In that hierarchy, technology could even replace the social capital of healthy families and communities that traditionally gave agrarian society much of its strength and resilience.

The county needs to be ready for these challenges. The limiting factor that inhibits food system change is not biophysical knowledge of how to do it, but social knowledge of the power structures that have closed down local food economies and prevented their revival. Successful strategies for change can emerge only from a deeper understanding of how things work in the system of power relations, both in the county and beyond.

A county policy framework that effectively favors local production and reverses the power shift in modern society toward centers that today exploit peripheries will ultimately improve local quality of life. In the early 19th century, before the rise of competition from the Midwest, agrarian NY communities sold to nearby cities and enjoyed a relative prosperity that reflects the true dependence of urban affluence on the wealth of the land. Recently it was estimated that in Maine, $10 a week spent on locally produced food would put $104 million into the state’s economy.[5] This suggests that a public program to relocalize the county food economy eventually could sell politically as a core element in regenerating the local economy overall.

Interdependencies in the county food system

The three types of county agriculture to be explored in this series are best suited to different, complementary roles in county food production. Taking its cue from the pattern in earlier times, urban agriculture will give priority to production of vegetables and fruits for fresh consumption that can be grown intensively, in raised beds for example. Peri-urban agriculture will supplement urban gardens with produce that requires more space, and will support some livestock. Rural agriculture will be responsible for most of the large animal production and large-scale field cropping. A high priority of farming in satellite villages will be to grow the bulk of the staples, like potatoes, oats, roots, brassicas, legumes, squash, alliums, and apples, which have proven to be dependable in cool, temperate climates. The county will need to rely mainly on outlying farms for non-food essentials as well, such as oilseeds, flax, hemp, wool, leather, and wood.

Because the agriculture of the future will need closed nutrient cycles, fertility for all county food production cannot be considered apart from county organic waste streams.[6] To maintain fertility, organic waste must return in some form to food production sites. As the dense urban population produces the bulk of the waste, public institutions will need to take responsibility for separate collection of the purely organic component of the urban garbage and sewage waste streams, recycling part of it back to rural farms.[7]

Fertility in urban and peripheral agricultural soils can be sustained with compost from the city organic garbage stream alone. A study of one urban community revealed that urban agriculture alone could absorb 20% of the organic waste production of the city.[8] This will require a municipal policy and program of careful triage, collection, and composting at optimum C/N ratio by mixing high-nitrogen food garbage with high-carbon sources like leaves and shredded paper trash. The city could assign responsibility to urban institutional sources, such as schools and restaurants for moving their large organic waste streams to composting facilities at specific peri-urban food production sites. A map of existing Tompkins County composting sites demonstrates the composting potential (Figure 3).[9]

Figure 3. Composting sites in Tompkins County (click image for PDF version)

As for sewage, eventually Ithaca will have to desewer, converting to urban night soil collection, biogas extraction, and the recycling of residual organic matter to county farms that will be necessary to maintain the mineral content of rural agricultural soils. In the short run, guerilla humanure composting from backyard compost toilets can build toward full conversion (Figure 4). These household facilities are satisfactorily self-policed, because the product will be used in closed-cycle residential food production.

Figure 4. A functioning home-built composting toilet based on a 55 gallon drum that has been in operation in Cortland County since 1983. The drum is periodically rotated out through a composting cycle

Conclusion

In this article, I have discussed the possibility that some of the current massive importation of the county’s food consumption could go on for decades. I pointed out serious risks to food security if this were allowed to continue, and argued that the distance economy in food causes metabolic rifts that make it ultimately unsustainable. I described in outline how a local food production system could mend the biological rift. Detailed visions of urban, peri-urban, and rural food production systems in the next articles will explain design solutions to the basic problems of fertility, energy, water supply, and pest control in specific cases of each type of production. And the reorganization of county agriculture itself will begin to address the most challenging rift, the social and cultural rift between urban and rural life.

Notes

[1] Hedrick, Ulysses Prentis. A History of Agriculture in the State of New York. Albany: New York State Agricultural Society, 1933.

[2] Ibid.

[3] Martenson, Chris. http://www.chrismartenson.com/crashcourse
Heinberg, Richard. Peak Everything: Waking Up to a Century of Declines. Gabriola, BC : New Society Publishers, 2007.
Kunstler, James Howard. The Long Emergency. New York : Atlantic Monthly Press, 2005.

[4] The earliest to apply the term metabolic rift to the “robbery” of country soils through the exportation of food to cities appears to have been the German chemist Justus von Liebig in the introduction to the seventh edition of his Organic Chemistry in its Application to Agriculture and Physiology. The term was later used by Karl Marx and others. See Foster, J.B., “Marx’s ecology in historical perspective,” http://pubs.socialistreviewindex.org.uk/isj96/foster.htm and Clausen, Rebecca, “Healing the Rift: Metabolic Restoration in Cuban Agriculture,” Monthly Review, May 2007.

[5] Community Food Security Coalition. “Urban Agriculture and Community Food Service in the United States: Farming from the City Center to the Urban Fringe.” FoodSecurity.org. October 2003. http://www.foodsecurity.org/PrimerCFSCUAC.pdf

[6] For information about local waste processing facilities, see the TCLocal article “Wasting in the Energy Descent: An Outline for the Future” by Tom Shelley, http://tclocal.org/2009/01/wasting_in_the_energy_descent.html

[7] Tom Shelley has recently begun to prototype this process with “The Sustainable Chicken Project,” which returns nutrients to the land by collecting kitchen scraps in the City of Ithaca on a subscription basis and feeding them to chickens at Steep Hollow Farm three miles outside the city in the Town of Ithaca. See http://www.sundancechannel.com/sunfiltered/2010/01/sustainable-chicken-project/ and the farm’s blog at http://steephollowfarm.wordpress.com/

[8]Mougeot, Luc J.A. Growing Better Cities: Urban Agriculture for Sustainable Development. Ottawa: International Development Centre, 2006. http://www.idrc.ca/openebooks/226-0/

[9] http://www.co.tompkins.ny.us/gis/maps/pdfs/CompostMap2000-E.pdf

by Krys Cail and Tony Nekut

This article continues the discussion of heating with local biomass begun in our October feature, “Burning Transitions” (http://tclocal.org/2009/10/burning_transitions.html). There it was noted that the best application for local biomass energy is combustion for space heating, possibly coupled with distributed CHP (combined heat and power) electricity generation, and that these technologies are, for the most part, already developed and available in the form of high-efficiency gasifying boilers and pellet stoves.

Work is required along the entire supply chain (growing, harvesting, processing, distribution, and utilization) if local biomass energy is going play a significant role in Tompkins County’s energy future. The traditional economic stakeholders are a diverse group of mutually dependent players (landowners, loggers, foresters, farmers, manufacturers, fuel retailers, and consumers), each requiring commitment from the others to make the system work. Leadership and planning are essential to moving beyond gridlock by demonstrating how, through cooperation, everyone along the chain stands to benefit. Fortunately, there are a variety of case histories and other resources that have been developed in recent decades that render this demonstration somewhat easier.

Barring unforeseen breakthroughs in energy technology, it seems clear that this resource will indeed be developed. Local biomass is already cost competitive with fossil fuels for space heating, and its economic viability will only improve as fossil fuel prices continue to rise. The time has therefore arrived to begin development, because time will be required build the needed infrastructure.

The scale of the local biomass development challenge

Every form of biomass yields about 16 million BTUs per dry ton when burned. Sustainable annual biomass productivity ranges from about 0.5 dry tons per acre for our local forests to 5 dry tons per acre for some locally suited energy crops. These productivities represent conversion efficiencies from solar radiant energy to stored chemical energy of about 0.1 to 1 percent. If half of Tompkins County’s 300,000 acre land area were committed to growing biomass, the annual per capita energy production would range from about 12 to 120 million BTUs. (See the discussion of County land cover in the October “Burning Transitions” article.) By comparison, current (2007) statewide annual per capita primary energy consumption is 219 million BTUs. In other words, the amount of biomass energy we could get from our land even in relatively rural Tompkins County would yield nowhere near our total energy needs.

Meeting our heating needs is another matter. Each household in the County uses about 100 million BTUs annually for water and space heating; this is about 43 million BTUs annually per capita — approaching the range of sustainable large-scale local production. Adding the wholesale implementation of residential energy efficiency measures would bring total heating energy self-sufficiency within reach. Ed Marx, Tompkins County Commissioner of Planning and Public Works, has been quoted as estimating that biomass could heat up to 40 percent of the homes in the county, or even more if homes were super-insulated.

The biomass heating gap

Local biomass energy for heating has enormous potential benefits. It creates jobs, keeps money local, provides energy security, reduces CO₂ emissions (locally burned biomass is virtually carbon-neutral), increases carbon sequestration, slows fossil fuel depletion, improves forest and soil health, maintains rural land values, reduces development pressures, creates community ties, and raises community environmental awareness. But fewer than 5 percent of County homes are listed in census data as heated primarily with biomass (cordwood and pellets). For 2008, the Census Bureau’s American Community Survey estimates the percentages shown in the following diagram for heating the 37,749 occupied housing units of Tompkins County.

The apparent lack of interest in heating with wood shown by the 4.5 percent figure is partly an artifact of the way the data is gathered and partly due to active discouragement of wood heat by mortgage lenders and insurance companies.

Wood heat appliances do not enjoy wide acceptance by those who underwrite mortgages and insure homes. Due to the perceived risk of fire, many underwriters of homeowners insurance will not insure properties with wood stoves. (Pellet stoves, which are less likely to cause chimney fires, are a bit more acceptable.) In particular, homes that include rental units — even if the home is also owner-occupied — are very difficult to insure if there is wood-burning equipment in use for heating and the insurer is aware of that fact.

Of course, homeowners insurance is a requirement for any house that has a mortgage. But it is not just the reticence of homeowners insurance underwriters to insure homes with woodstoves that limits use of this technology; there is also a problem associated with wood heat when the lender packages the mortgage for resale on the secondary mortgage market. Despite the worldwide use of this simple technology, burning wood to heat a dwelling is perceived as too risky. Where woodstoves are a secondary, rather than primary, source of heat, this is overlooked. But a home that relies predominantly on wood for its heating source is a home whose purchase will be difficult to finance.

Gaining a more accurate estimate of local trends

This situation — which makes it plausible to add wood heat as a secondary heat source, but difficult to rely on it as a primary heat source — helps explain why the census figures for wood heat seem so low. This is a problem even in the decennial direct counts.

The between-decades estimates suffer from an additional problem: there’s no mechanism for reporting a local trend. Households demographically similar to the various household types in Tompkins County are surveyed at various locations around the country, and the composite picture of their changes is applied to local households with similar characteristics. For instance, if upper-income professional couples with two or fewer children in the home were, for the most part, heating with natural gas across the US, there would be no mechanism for the American Community Survey to read a recent upswing in purchases of woodstoves and pellet stoves among local college and university faculty.

To get a better idea of what’s really happening locally, we had to ask around. The results, while anecdotal, point to just such a trend.

The sales managers of both local woodstove/pellet stove retail outlets indicated that business has been steadily increasing throughout the decade, with particularly noticeable upswings in wood heat appliance purchases when other forms of fuel — particularly fuel oil — experienced price run-ups or price volatility. Both described their typical customers as college professors or other professionals interested in saving money and in helping to conserve non-renewable resources. While families living in more rural and suburban locations were the norm for local wood heat users at the beginning of the decade, the increasing popularity of pellet stoves has resulted in more urban families buying wood heating appliances.

A construction manager at Ithaca Neighborhood Housing Services, which administers a group of NYSERDA programs aimed at green energy for heating, concurred that more urban residents are choosing pellet stoves, and that the help available from NYSERDA resulted in more low- and moderate-income families being able to access affordable financing to add wood heat to their homes.

Another indication of the rising local popularity of wood heat of various sorts is the brisk business that fuel purveyors are doing in cordwood and pellets. The owner-operator of Finger Lakes Firewood, the largest local cordwood dealer, has purchased additional automated equipment to better clean and move his cordwood as his customer base has continued to expand. Ithaca Agway has been using its display sign to advertise pellets, and the Home Depot devoted as much space at the front door to sale-price wood pellets as to the snow blowers.

Industrial uses of wood heat

Wood heat is beginning to appear in local industrial operations, too. For example, US Salt in Watkins Glen is in the process of converting the heating of its large facility on Seneca Lake to biomass.

According to Len Boughton, an engineer with the firm who has been responsible for overseeing the construction and retrofitting, the system, after two years of work, is now in place and operational, but the switch to wood-based fuel will wait till March to allow troubleshooting during a season of less extreme heating demand.

Plant Manager Frank Pastore said that US Salt has contracted with TreeSource Solutions (http://treesourcesolutions.com/) to avoid the management burden of dealing with multiple suppliers. TreeSource is a wholly owned subsidiary of Catalyst Renewables (http://www.catalystrc.com/). Pastore said that he expected the bulk of the fuel to come from local sources, through the Wood Yard that TreeSource has established nearby in Burdett, but that he trusted the contractor to source wood fuel as appropriate in order to maintain a stable and affordable price.

Buying and selling biomass in Burdett

The Wood Yard at the old railroad depot in the Village of Burdett was, in its last incarnation, a steel recycling facility, and many of the buildings are simply being reused “as is” the old depot itself is used as a scalehouse for weighing trucks. The facility includes a large, rambling lot with a gated entrance from State Route 79. The Yard was not officially open the day of our visit, but it’s clear that the facility is used in a number of synergistic ways in addition to providing a means to weigh and store wood intended for use as biomass fuel.

Entrance to the Burdett Wood Yard

A recently constructed pole barn houses a portable bandsaw mill, and some rough-milled lumber showed that the facility is in active use. A large pile of logs awaiting conversion to woodchips was evidence of the yard’s role as a source of fuel, though there was no tub grinder on site. A tub grinder, which can cost up to a million dollars, is typically portable over the road system and will presumably be brought onto the site to process the logs as needed.

Portable bandsaw mill at the Burdett Wood Yard

Arrangements for dropping off wood and arranging payment are made directly with TreeSource Solutions’s buyer, Jack Santamour, who spends most of his time at TreeSource’s facility in the Adirondacks and manages the Burdett yard via telephone with the help of some local employees. TreeSource is currently buying logs by the ton every Friday or by appointment.

Wood awaiting processing by TreeSource Solutions

A cooperative model of biomass production in Danby

One key to sustainable local wood heat in Tompkins County is the creation of a system whereby local landowners can convert otherwise unused or underutilized farm or pasture land to biomass production. The Danby Land Bank Cooperative (http://www.danbylandbank.com/) provides an organization and infrastructure that allows owners of 10 or more acres in the Town of Danby to use their fields and forests (much of it marginal for farming) for grass and wood pellet production.

Built on a classic cooperative model, the goal of the Land Bank is “to unify fragmented and non-farming rural landowners to form a large enough agricultural base to provide economies of scale.” Local members of the co-op lease their land to be harvested of perennial grasses as feedstocks for grass pellets or briquettes; the land is cleared for free, and the owners receive tax credits and, eventually, a share of the profits.

In operation barely a year, the DLBC has already gained 20 owner-members with more than 350 acres devoted to the project. Governance structures are in place, and plans are in the works to incorporate as a legal cooperative. The project, aided by consultation with the County Planning Department and close cooperation with Cornell Cooperative Extension, received major publicity in November with the appearance of a feature article in Rural Cooperatives, a publication of the U.S. Department of Agriculture (www.rurdev.usda.gov/rd/pubs/RuralCoop_NovDec09_Final.pdf).

First hay cutting of the Danby Land Bank Cooperative (photo courtesy of DLBC)

Establishment of a local pelletizing plant has been identified as a key to long-term sustainability and economic viability through reduction of transportation costs. The pellets, which are manufactured by grinding, drying, and extruding raw biomass into a dense, free-flowing fuel of consistent quality that can be efficiently used in inexpensive residential appliances, have a retail market value per dry ton well over twice that of the raw feedstocks. The value added more than covers manufacturing costs, so pelleting can provide an economically viable link between local biomass suppliers and the existing local pellet market.

The DBLC recently joined with Energy Independent Caroline to sponsor Town Hall meetings in Danby and Caroline regarding a company called Community Biomass Energy, which proposes to build a local biomass pelletizing mill on Boiceville Road in Caroline just south of State Route 79. (Disclosure: One of us (Nekut) is a principal in this effort.) See the DBLC’s newsletter (linked from their web site) for details and updates. The December 2009 issue is at http://www.danbylandbank.com/site/resources_files/DLBC_Newsletter_Dec_2009.pdf.

Unresolved issues

Local biomass harvesting and processing hold great promise for reestablishing the county's ability to provide for its own heating needs. However, several issues remain unresolved.

• We need to relocalize food production, too. While much of the land in the county that could produce biomass for heating is marginal for raising cultivated crops, a substantial percentage of that land could alternatively serve for rotational grazing of livestock, which is arguably a less-intensive, lower-input use of the same acreage. Thus the optimum allocation of land for biomass production vs. land for grazing or the production of winter hay remains an open question whose eventual resolution will depend on a number of variables that are difficult to predict.

• The increased use of biomass for heating will increase economic incentives to harvest wood resources beyond a level that's sustainable. The large-scale reversion of former Central New York farmland to successional forest over the last half century makes it easy to forget how quickly the forest can be cleared again. The establishment of sustainable forest management practices will be essential to the return of biomass heating as a long-range relocalization strategy.

• The rediscovery of biomass as a heat source has created a market for American wood chips as far away as Europe. Our region's potential as a major biomass producer also makes it susceptible to the kind of resource exploitation we associate with third-world countries. Heating our homes with local biomass won't succeed if higher prices cause local biomass to be exported rather than used locally.

The need for greater local control over the allocation of our local resources argues for the establishment of biomass harvesting and processing facilities under local management and provides further reason to hope for the success of initiatives such as the Danby Land Bank Cooperative and the proposed Community Biomass Energy facility in Caroline.

Online wood heating resources

Cornell Cooperative Extension has posted an excellent collection of links to articles on firewood resources and heating with wood on their statewide web site at

http://cce.cornell.edu/Environment/Pages/HeatingwithWood.aspx

Options for Re-evaluating Care Resources

By Bethany Schroeder

In Part One of this two-part series on healthcare resources in Tompkins County, I pointed out that today we have a variety of options and a well-developed infrastructure to meet the health needs of many local people. Noted exceptions include un- and underinsured residents, now estimated at 13,000. Some of these people are treated outside the County at regional medical centers and some receive care at the Ithaca Free Clinic (IFC). Many do without regular care at all, visiting a facility on an emergency basis only. As an unstable economy and reduced resources persist and worsen, more and more people will experience the exigencies of decline. In terms of health care, much can be done to mitigate the effects through evolved expectations and planning for the change. Recognizing health care as a right rather than a privilege goes some distance toward effective planning. Understanding that the illness or injury of anyone in our community is a hazard to all of us and one we should address by providing support also demonstrates our humanity and our solidarity.

Overcoming Barriers to Care

In the future, barriers to care will include transportation challenges, lack of available facilities, and alterations in care models.

Transportation to care

Whether one is a healthcare worker or resident in need of services, a chief barrier to care delivery in the future will be transportation. Because most large health resources such as Cayuga Medical Center (CMC) and the Convenient Care Center are located at the outer limits of the city of Ithaca, people presently rely on private cars, taxis, bicycles, or public vehicles, such as busses and Gadabout shuttles, to get to and from appointments. CMC also operates a Convenient Care Center located in the adjacent county of Cortland, where some residents of Tompkins County living nearer to Cortland than to Ithaca access care. Similarly, most of the residential facilities, including assisted living homes and skilled nursing facilities (SNF), have private shuttle services specifically for transporting residents to and from healthcare appointments. As clinic and office spaces are developed in Ithaca, more and more physicians are presently located at the periphery of the city's boundaries. Nonetheless, already established physicians and nurse practitioners in smaller offices, as well as the offices of many complementary and alternative providers, are located within the city and within some of the villages and towns, making it possible for residents who live nearby to walk to appointments. Both options of locale have pros and cons, and these will change over time.

An obvious way of managing challenges to transportation, both from the perspective of caregivers and people needing care, is to encourage healthcare workers to live near worksites and for residents to establish relationships with providers near their own homes or worksites. The present centralization of healthcare facilities makes this difficult to achieve, whereas planning for a future change now could make the concept more acceptable. Specific transportation options are outside the scope of this article and will be addressed by other TCLocal contributors. Nonetheless, an obvious consideration includes developing employment and social structures that routinely allow workers to seek care during work hours, especially important to workers in settings located near care settings. At the same time, healthcare providers could consider holding flexible hours, in order to facilitate access through available transportation options.

Another option for arranging transportation is to reverse the process, especially in clusters of dense dwellings. Teams of caregivers in any number of configurations could easily walk through neighborhoods delivering service—either in the form of direct care or education or both. Physicians have largely discontinued making house calls in the U.S., but visiting nurses still do travel to homes, and this practice may prove efficient in some circumstances and settings. For example, a team composed of a registered nurse, a dietician, and an herbalist could offer nutritional and medicinal education. A chiropractor, an acupuncturist, and a massage therapist could provide alternative pain management. If the teams worked together, they could help one another in the process of finding the right method of fulfilling the needs presented to them.

Tompkins County could also learn a lesson from the Cubans, who assign physicians, nurses, and others to live and work in specific neighborhoods, inspiring, according to reports, a deep commitment to the neighborhood and its residents. Care providers in the immediate vicinity of those needing care are naturally able to see and to know their prospective patients in a different way than when both reside apart.

If things get as bad as some of us think they might, another potential consideration is the option of taking care into the community, such as the former rural district nursing practice. At the beginning of the last century, nurses cared for patients in rural settings using horses to get to and from settlements. In many parts of the U.S., this would be an untenable scenario, whereas Tompkins County-indeed, the entire Finger Lakes region-already supports many horses, horse farms, and local routines that include horses in daily life. Under circumstances of energy descent, many more people may be occupied in agricultural pursuits, in which case we might expect more farming injuries and other agriculturally-related healthcare needs. Visiting nurses or even visiting physicians could well be a necessary part of daily life.

Care facilities

Part One of this series provided an overview of care facilities in Tompkins County. Apart from the Public Health offices, owned and operated by local government, most local facilities are privately owned. City and town planning boards review and approve the construction or re-fabrication of care facilities, and some degree of oversight of the development of facilities occurs through the work of the Health Planning Council and its advisory board. Projects that may rely on public money, such as Medicaid dollars used to house residents in assisted living homes or SNFs, are scrutinized for the need of services in a particular area. Nonetheless, there is no master plan based on realistic census projections and estimates of available resources necessary to ensure care for all residents.

In an era of adaptation, the leadership of Tompkins County can rethink the requirements of a care facility, as well as the number of facilities in any part of the county. If care can be delivered in less formalized and standardized settings, then almost any storefront or main floor of a house or other common building is adequate so long as it has bathrooms and a hand-washing sink in a common space, as well as space for reception and discharge activities, a waiting room, and a private room where primary providers can interview, examine, and treat people.

In Alexander's 1977 Pattern Language, the architect and writer advises: “Gradually develop a network of small health centers, perhaps one per community of 7000, across the city; each equipped to treat everyday disease.” Identifying small or modest buildings or parts of buildings with multi-use features, such as several doors for entrance and exit, ground floor access, and a variety of plumbing options, could help to realize the image of “a network of small health centers.”

Before the advent of cheap oil, providers living in neighborhoods delivered care in their homes, and the very sick or those who could not be transported received house calls from physicians and nurses. Hospital care was reserved for the gravely ill and was often an option of last resort, because families were loath to be separated from one another and hospital care was for many people prohibitively expensive. Organizing care within a matrix of walkable locations and within easy distance of one's home or work may even have the potential for making the idea of care less forbidding. Reserving the hospital for the most extensive and demanding care and, once energy descent is fully and inexorably underway, possibly reshaping the hospital for a variety of community roles, may be the most responsible use of resources.

Alexander has also suggested organizing health centers with recreational and educational activities related to good health in mind. Some of our local resources have exactly this level of functionality. Island Fitness, owned in part by CMC, includes fitness training equipment, offers a broad range of fitness and stress reduction exercise classes, operates a spa with massage services, all the while providing physical therapy and rehabilitation to people who are strong enough to use an out-patient facility. Similarly, the Integrative Medicine offices in downtown Ithaca are within easy walking distance of the City Health Club, and a number of chiropractic offices in downtown Ithaca are located near pilates and yoga studios. Viewing these opportunities as part of our local resource and planning in a way that supports groups of services in clustered arrangements is good for the people who need the help and for the people giving it.

Care models

Most employers either provide or require a certain amount of on-the-job or continuing educational effort so that the knowledge within the workforce remains current. At this time, healthcare coverage in work settings of a certain size is mandated, and some progressive employers understand and appreciate that employees knowledgeable about matters of health and wellness have made an investment in their own longevity by demonstrating responsibility for their choices. By the same token, most schools offer classes in healthy living, sports and exercise, nutrition, and lifestyle. The person who has learned about his or her health needs and is willing to take steps to maintain a healthy status is an asset to the workplace, to the school, and to the community. Such an individual is also an example of the lessons of prevention taken seriously.

Many people already know much about their bodies. A by-product of our modern lives and the leisure we have includes aspects of self awareness that can lead to healthier states of being. Yoga, t'ai chi, qui gong, and many other martial and meditative arts support health and healthy living. Similarly, recreational and competitive sports have the potential for promoting self-discipline and long-term vigor. Prevention will necessarily be a big feature of healthcare delivery in a post-peak environment. The residents of Tompkins County are already better prepared than many people in the U.S. for the choices related to prevention: primary care, complementary and alternative medicine, regular exercise, sound nutrition, and a holistic perspective on the relationship between the mind and the body inform the lives of local residents.

On the other hand, most of the treatments, therapies, and surgeries we presently rely on as interventions to maintain or improve health require products made largely from petroleum. Under our current system, we take for granted the disposal of used equipment, if only because it's impossible to thoroughly sanitize or sterilize plastic containers and fixtures. In times past, most of the implements of care were made of glass and metal and could be refurbished and reused. Preparing to live with fewer of these adjuncts requires that we re-think our throw-away healthcare culture and take better care of the health we have now.

Much as energy descent will change aspects of care delivery, we can expect climate change to influence the illnesses we are exposed to. For example, as temperatures increase in presently cold climates, microbes and vectors that were previously unable to survive lower temperatures will begin to survive and then thrive. Treating diseases with which we have no experience and no immunities will require flexible and creative approaches, good diagnostic abilities, and an educated response not only from caregivers but also from community members. As is true with many of the illnesses we now confront, new illnesses from other environments often diminish in the face of prevention. In addition, we will need to learn to use netting to protect sleeping and resting spaces, effectively manage snakes and other animal interlopers, and contend with the effects of poisonous or otherwise noxious plants and insects. We can expect a benefit from such accommodations to be the return of better and more regularly used porches protected, of course, against the predations of new pests of one sort or another.

Two specialties in health care are especially well-suited to the delivery of services in a post-peak environment in which unknown illnesses and strained resources prevail. Emergency medical administrators and providers as well as public health officials and providers will be in much demand as energy descent and climate change reshape our world. Emergency medical professionals are already accustomed to the concepts of triage and developing priorities required to confront disasters and the shortages disasters incur. Public health professionals are also continually advised about the changing landscape within the regions that shelter their communities. Both specialties promote interdisciplinary models of care and encourage broad areas of expertise, and both could be called on to organize local efforts to safeguard populations and teach individuals how to respond to the threat of disease. These professionals invariably know how to think about dealing with shortages of supplies and personnel. In making the observations here, I cannot recommend anything more forcefully than maintaining and even adding to our local emergency medical and public health expertise.

While no one wants a diminished level of health care compared to what we enjoy now, most pundits agree that expecting interventions to solve our health problems rather than preventing them at the outset is prudent and less trouble. We can't always outfox our genetic heritage or stop an accident that causes broken bones or some other injury, but there is much we can do to prevent other kinds of injury and illness.

The coupling of preventive and primary care may be the best use of medical resources in the coming age. Promoting the synergies between the two models acknowledges the strength of each while encouraging their interdependence. Hierarchies in any social structure are to be expected, but the hierarchies of medicine have been bad for health care. We will surely need more cooperation and collaboration when we have fewer natural resources; preventive care and primary care are ready allies, even now. In Tompkins County several well-respected primary care physicians and family nurse practitioners seek out collegial relationships with complementary and alternative providers, thereby producing on a local level the integrative medical model increasingly, albeit quietly, under construction all over the world.

Some current technologies may be adapted to energy descent or saved outright due to their utility. One such technology could add to the models of care available in a remote place like Tompkins County. Telemedicine, the use of telecommunications devices to transmit medical information, complete examinations, and conduct surgeries, among other things, has been used successfully in a wide range of care settings. Some teaching hospitals use the technology to extend teaching and learning opportunities to distant sites; some use it to make surgical and other procedures more widely available. For more than 15 years, a few home care and hospice agencies across the U.S. have used telemedicine to make more efficient use of nursing and ancillary services and to allow patients, nurses, and other providers to see one another and to communicate complicated situations without taking on the burden of extra home visits. As the internet becomes more robust and ubiquitous, it is easy to imagine that the current monitor and phone line set-up typically required for telemedicine will be transformed by greater adaptability without much more of an investment in or expectation of increased technology. As energy descent ensues, maintaining the infrastructure required to power the internet will be a multi-faceted asset.

Today residents rely on local specialists or specialists in Syracuse, Rochester, New York City, and out-of-state medical centers for some of the more arcane problems related to health status. Both energy descent and climate change will make travel to far-flung destinations difficult, costly, dangerous, and often impossible. Access via a screen may be the most we can expect when our local medical resources are not enough.

Finally, self care is the model health professionals of all stripes promote at the foundational level. Few “patients” can achieve self care, because once people become patients they're also sick and in some jeopardy of ever resuming a state of wellness. If as a community we aspire to knowing, protecting, and grooming our bodies and minds, we can be full partners in our tenancy here, which will make us all the more capable of managing other aspects of energy descent and climate change. For the purposes of realistic management in an energy-constrained world, self care includes knowing how to evaluate one's needs, adhering to a plan for achieving those needs, and being aware and capable of administering basic first aid, at a minimum.

Conclusion

Health care in the 21st century is a complex service requiring a complex set of skills. We can anticipate that aspects of the discipline will become more basic as energy descent and climate change progress. Residents can do much to prepare for altered expectations by learning concepts of basic care and by participating in planning for healthcare delivery in an energy-constrained environment. Supporting primary care and methods that lead to the prevention of illness, as well as the interdisciplinary model of integrative medicine, are helpful, proactive actions. Similarly, residents can provide oversight by insisting on the security of emergency and public health resources and by taking responsibility for the self care of their families.

References

Alexander, C., Ishikawa, S., & Silverstein, M. (1977). A pattern language, p. 255. New York: Oxford University Press.

Bednarz, D. (2007). Medicine after oil. Orion Magazine. Available at http://www.orionmagazine.org/index.php/articles/article/314/.

Bednarz, D. (2008). Energy and the health sciences: a strategic management perspective. Energy Bulletin. Available at http://www.energybulletin.net/print/46146.

Bissell, R., Bumbak, A, Levy, M., & Echebi, P. (2009). Long-term global threat assessment: challenging new roles for emergency managers. Journal of Emergency Management, Vol 7, No. 1, pp. 19-37.

Chamberlain, S. (2009). The transition timeline for a local, resilient future. Vermont: Chelsea Green Publishing.

Jeffrey, S. (2008). How peak oil will affect public health. Energy Bulletin. Available at http://www.energybulletin.net/print/45750.

Vision 2020: Final Report of the Addison County Conservation Congress. Available at http://www.acornvt.org/Documents/Vision2020.pdf. Accessed September 1, 2009.

How Planned, Localized, Sustainable Non-food Biomass Utilization Can Help Ease Energy Descent and Mitigate Global Climate Change

by Krys Cail

Introduction

This article provides a framework for considering the socio-economic structural changes that can lead to a different, more stable, and more sustainable local market for heating fuel and electrical energy.

The use of combustion for heat and power is an established and developed technology, while the successful social balancing of environmental and ecological costs with short-run economic benefit is a new, and daunting, challenge. The change, or transition, needed to use the locally available resource of non-food woody and grassy biomass to help solve current energy problems is socio-economic change, not technical innovation. We can supplant at least some current fossil fuel use with the more carbon-neutral combustion of earth surface harvested feedstocks using current technology. Nonfood biomass direct combustion[1] can be undertaken in a localized context. We can take an enlightened approach to the sustainable management of feedstock planting, growing, and harvesting, energy-efficient processing, complete and clean burning, and ash recycling. Developing such a system also offers a means of developing the alternative commercial channels necessary to move the Tompkins County area to a future of heat and energy production that is not just more environmentally friendly, but also more economically insulated, or decoupled, from the gyrations of the world oil market in a time of post-peak oil.

Other current and emerging heat and power technologies, such as solar, wind, geothermal, and small-scale hydro are “greener” forms of alternative energy and may be our future mainstays. However, in biomass-rich locations like Tompkins County, the economic attraction of biomass as an affordable substitute for fossil fuels will ensure that it will come into commercial use as oil and other energy commodities rise in price. If the development of biomass energy is controlled by the current energy industry, large energy companies will guard their market share by organizing only large-scale markets, even in situations where energy efficiency favors smaller, more localized scale. Conversely, building localized commercial structures to sell nonfood biomass-generated heat and electrical energy could feasibly provide a template for the effective investment in and commercialization of localized energy from other, greener sources in the future.

The kind of community development that allows areas the size of Tompkins County to become more energy self-reliant—”import substitution” for the energy products of the fossil fuel industry—can accomplish the twin goals of creating green jobs and modeling the kind of less global, more local commercial/economic interactions that are referred to as relocalization. Relocalization of energy provision is a necessary response to energy descent; accomplishing this using tested community development practices will ensure better success in the required transition.

The First Two Burning Transitions

Combustion (fire), used as a tool, was a major human cultural advance, and perhaps helped our species to evolve. In his recent book, Catching Fire: How Cooking Made Us Human,[2] Richard Wrangman, a Harvard University biological anthropologist, postulates that the taming of fire, and its use to cook food, was the key tool-using event that allowed human evolution to proceed from pre-human hominid to modern humankind. He postulates that cooked food allowed us to divert calories from chewing to growing larger brains.

The centrality of fire to the establishment of human society is also evidenced in religions and belief systems worldwide. One classic rendition is the myth of Prometheus, the champion of humankind who was said to have stolen fire for use by mortals from the immortal gods.

From ancient times up until the Industrial Revolution, humans used combustion sustainably, with only localized or regional instances of deforestation.[3] Early burning was carbon-neutral as far as the earth’s atmosphere was concerned.

Some primitive peoples did set massive fires. For instance, Plains Indians used prairie fires to stampede buffalo over cliffs; Tompkins County’s first peoples probably (like New England’s natives) routinely burned the forest understory to make for easier hunting access;[4] and innumerable horseback European raiders ransacked and ruined settled villages with fire—as Revolutionary War General Sullivan did here in the Finger Lakes. These combustion materials were already a part of the earth surface/atmosphere carbon exchange. In geologic/atmospheric time, even very big surface fires are just blips. The carbon released into the atmosphere would have otherwise been added shortly anyway through decomposition. It was the Industrial Revolution and the use of first coal, and then oil and natural gas, that began the process of unbalancing the planet’s atmospheric carbon load by making use of the carbon stores of former eons, previously safely buried underground. This led to both global climate change, and to the depletion of easily extractable in-ground carbon sources we speak of as peak oil and energy descent.[5]

The first “burning transition,” then, was the Prometheus transition. This transition changed humankind (if you don’t believe Richard Wrangman that it changed our evolution, you must at least concede that it drastically altered our culture). The Prometheus transition enabled the development of agriculture and led to deforestation in a few subcontinental areas But the second burning transition—and the advent of the steam and internal combustion engines of the Industrial Revolution—resulted eventually in major land and sea transformation and widespread ecosystem and climactic change. The first burning transition changed humankind, while the second burning transition changed the planet. Each burning transition also markedly changed the socio-economic systems that people used to regularize and control the commercial and familial relationships that provide us essentials such as heat in cold weather, food, and, after the second burning transition, electric power.

Planning a Third Burning Transition

Technological optimism about alternative fuel development usually focuses on replacing combustion of “dirty” fuels with combustion of “clean” fuels, while leaving the production and distribution systems for liquid and gaseous fuels and electrical power in its heritage configuration. That configuration is controlled by some of the most powerful international corporations on earth—oil and gas developing, refining and shipping companies, electrical utilities, and coal-mining and shipping companies. These actors have a vested interest in seeing that the socio-economic systems of the future do not deviate too much from those of the past, ensuring these corporations continued market share. Is that to our advantage?

Is the needed change limited to a substitution of one fuel for another, one feedstock for another, or one power source for another, with no substantive change to social, industrial, political, or economic institutions? Or is a more substantive transition needed? Will social and economic change follow technology, or will we invent and popularize only the technologies our social and economic systems predispose us to aim toward?

“Local planning for sustainable use of local resources” is the basis of egalitarian post-colonial social and economic development. It is also the key to the development of a third, socioeconomic/cultural burning transition. Rather than assume an international market in energy as a given and hope for technological fixes, we should focus in the third burning transition on the relocalization of systems of sourcing, producing, and distributing heat and power. In that context, the on-going technological development can be decoupled from the economic fortunes of transnational corporations that are difficult to call to account on environmental effects in any particular place. A different kind of optimism about confronting the challenges of global climate change and peak oil can be envisioned, one in which the needed change in socio-economic structures is the direct goal, in order to accomplish the most efficient and environmentally-sound use of energy within current technological and environmental limits. This might then be followed by additional technological advancement, as needed and affordable—perhaps even a Solar or Geothermal transition that makes burning itself unnecessary. However, those possibilities are too far away for a complete transition right now, and right now is when global climate change must be addressed. Rather than trust humanity’s on-going scientific and technological innovation to “come up with something” that will make unfettered world markets in energy able to function within environmental limits, this optimism postulates that human communities can learn to balance their own energy needs with the sustainability of their own environments through socio-economic or socio-political progress.

The third burning transition is, in essence, a relocalization of energy production and an implementation of the household and commercial structures needed to manage more local production and consumption of energy, one that brings the source and use points of energy geographically closer together. This is a transition that requires no new or special technological development, but rather advancements in business form development and industrial design, including business and consumer combustion equipment and new approaches to the design of district heating and electrical power grids.

The Need for a Local Approach

Localities differ in what kind of resources they have available to produce heat and power. Thus far, most research and development in the area of biomass use as an alternative energy feedstock has used a non-localized model. Raw biomass is generally first converted into liquid fuel (both corn-based and cellulosic ethanol are liquid fuels), and then distributed via pipeline, tanker, and tanker truck, similar to petroleum. Or, alternatively, biomass is burned directly, but the resulting heat is made into electric energy and distributed far and wide on the electric grid. Both of these models contain large distributional inefficiencies.[6]

Government subsidies for one form of fuel over another can have unforeseen effects. Often, governments subsidize use of “cleaner” or more carbon-neutral fuels or combustion equipment via a direct consumer subsidy, such as a tax credit, or an indirect subsidy, such as a producer tax break or capital investment in production plant and equipment. Corn ethanol—an alternative fuel that even its promoters are now seeing as a “transitional” alternative fuel—is an example of how governmental enthusiasm for jobs, plant, and equipment in every legislator’s district can result in a glut of relatively expensive alternative fuel production in remote areas, with little hope of export at a profit in the face of price variation in the oil markets, where the product competes directly.

Some European governments have backed the development of small-scale solid-fuel biomass combustion, from pellet stoves to wood-chip furnaces to multi-fuel-burning combustion units and ultra-efficient gasification boilers that power electric generators as well as district heating grids. While this has led to much more widespread adoption of the technologies than in the US, there are still some perverse global-market effects. The governmental support for wood pellet burning in Northern Europe (direct consumer subsidies for pellet stoves, for instance) has resulted in the US market for wood pellets being significantly impacted by European demand: shortages of wood pellets in both the US and Europe in recent years have been blamed, in part, on the fact that most wood pellets produced in the US are shipped, under contract, to Europe, rather than available for growing domestic use.[7] If the domestic demand for wood pellets rises because fuel oil rises significantly in price, manufacturers can’t satisfy it, and resulting shortages drive up wood pellet prices in tandem with fuel oil prices.

Government support for the development of green energy is surely needed. But, as illustrated above, direct support for particular technologies can have perverse outcomes, when, in the real world, the variable and uncontrollable price of oil interferes with orderly marketing of the product as a substitute for the fuel and power sources people are accustomed to using. For that reason, localized community-controlled energy development for heat and electricity is preferable, as it can reasonably allow a community or geographic region to claim its own energy resources and begin to decouple its energy costs from the world oil market. In addition, as is the case with consumers developing commercial relationships with their local farmers, a measure of consumer loyalty and flexibility can be gained by localizing the transaction.

Local Resources: Prime Determinant of Appropriate Combustion Feedstocks

The third burning transition will look different in different locations. Relocalization offers the opportunity for each region or locality to assess what underutilized or sustainably developable resources it possesses, as well as what market power its heat and energy consumers represent. The skills and resources of local people must be accounted for, as well as underutilized natural resources and plant and equipment in the built environment. This assessment of resources can be done as a part of a tried and true methodology of community and economic development—Asset-based Community Development.[8] An asset-based approach to community development allows for customizing programmatic goals to highlight natural resources, human capital agglomerations, and other local conditions that will make one form of biomass more feasible to use as a feedstock for combustion than another.

The local foods movement has made some use of the phrase “Eat your landscape.” The idea is that, by engaging in an ongoing direct involvement in growing food (gardening or CSA working membership) or direct-from-the-local-farmer commercial interaction with a manager of food producing lands in your locale (“landscape”), one can exercise, in common with one’s neighbors, some influence over what kind of a landscape it is now and in future. The goal is use that is environmentally sound, sustainable, and provides a living wage to those who manage and work the land.

A similar approach can be taken to the orderly and sustainable harvest and cultivation of biomass for combustion in place of oil, gas, and, especially, coal. Although these fuel substitutions are not the ultimate long-term solutions to our energy problems, they do offer us a mechanism for developing the distributed, local commercial interactions that can and will set the stage for the development of more long-term sustainable energy systems. In much of Tompkins County, for instance, woody and grassy biomass may be available for use as a combustion fuel, but the commercial infrastructure to sustainably and profitably grow, harvest, and process that biomass needs to be developed. Without a community development effort in this area, woodlands and pastures in Tompkins County will continue to fall into an unused and unmanaged condition that does not allow for optimum carbon sequestration and invasive plant control and does not support the development of local energy and green jobs.

In Tompkins County, most of the underutilized resource is privately owned forested or pasture/hay land that is minimally managed and, in some cases, is becoming overgrown with invasive brush species. The following chart shows the acreage of various types of landcover in the county.

The accompanying map shows a pattern of land use that conforms to topography: the northern portion of the county, which is composed of flatter land and relatively more of the better soils for agricultural use, has a greater percentage of acreage in cultivated cropland and pasture, while the southern, hillier portion of the County is more densely wooded.

Organizing for Local Energy Production and Consumption of Biomass

“Eat your landscape” implies sustainability. A bountiful landscape might continue to provide food over decades, centuries, even millennia if it were properly managed and husbanded. “Burn your landscape” has none of the overtones of sustainability—it seems, rather, cataclysmic: a landscape devoid of living things.

There are other options, however. An actively managed forest or hayfield can continue to produce biomass for combustion purposes over a long period of time if attention to the ecosystem allows for the return of depleted soil nutrients through ash spreading and the building of fertility through support of various plant and animal communities. Woodlands actively managed for sustainable harvest of woody biomass could provide plant and animal habitat, sequester carbon, and produce some hardwood lumber as well. The key here is the way in which natural resource lands are managed. Under some systems of management, carbon sequestration and selection to impede the advance of invasive species are optimized, creating a forest that is more hospitable to native flora and fauna and more able to ameliorate the excess atmospheric carbon than the previous unmanaged woodland. However, such management systems are not the most economically viable under current market structures.

Current economic structures, if left unchecked, could cause cataclysmic environmental damage as harvested biomass becomes less costly than oil. Clear-cutting woodlands, while devastating to natural communities and water quality, is the cheap way to amass a large tonnage of biomass in an area like Tompkins County. Utility companies buy wood-chip tonnage to co-fire with coal from low bidders, developing an industry built around mechanized, invasive forest destruction. Environmental regulation has proven to be a weak tool for controlling industries that have a market incentive to use forests or grasslands as a short-term, rather than permanent, resource. An example is the Catalyst Energy/Treesource Solutions biomass aggregation facility in nearby Burdett, Schuyler County, which is offering loggers one low price for biomass tonnage to be used as wood chips to heat and power the US Salt plant in Watkins Glen.

On an individual scale, landowners who use firewood for heat are likely to take the long view of their investment in their land and do their best to manage their woods to maintain sustained production as well as multi-functionality (use of the woodlands for additional purposes, such as wildlife habitat, hunting, nature appreciation, privacy). When surveyed, owners of rural acreage in Tompkins County were amenable to seeing their underutilized parcels of land produce an income stream—but very few had either time or capital to devote to this.[9]

Several local initiatives in Tompkins County have sprung up to test structures that might become a part of a third burning transition here. In the Town of Danby, landowners have come together to market the biomass from their properties (as well as potentially other land-based products) as a group. This organization of owners of fallow fields and under-managed woodlots is based on the producer-coop configuration that has been successful in some agricultural areas.[10]

Another effort, spearheaded by Anthony Nekut, is intended to draw together investors and entrepreneurs with the purpose of developing a medium-scale pellet production facility in the county. Tony would like such a plant to have the capacity to palletize both woody and grassy biomass, and he envisions both local sourcing of biomass and local sales of pellets for home and business heating. [An article by Tony is scheduled for future publication on tclocal.org.—Ed.]

A third approach to using biomass to supplant some of the fossil fuels used for home heating in Tompkins County is Abbot Development’s initiative to develop Cornell University workforce housing on a Danish-style district heating model, with a combined heat and power plant as an integral feature of the development. This plan is currently in concept development stage, but it could easily be implemented if chosen by Cornell as the model for their new housing development. Again, the technology is available and ready to use; it is the commercial market structures that require some developmental attention to establish such a project in this country.

A fourth local project focuses on commercial combined heat and power along with a managed woody-biomass plantation scheme: RPM Ecosystems, a Dryden company involved in the production of fast-growing nursery stock for reforestation projects worldwide, has worked with Congressman Michael Arcuri to obtain federal funding for a demonstration project. The project involves a wood-fired combined heat and power plant that would provide heat for the greenhouses and offices of the nursery along with sufficient electrical power to operate the facility. Additionally, plantations of RPM Ecosystems trees would be established with a goal of producing some biomass along with some hardwood lumber while maximizing forest canopy (and carbon sequestration) throughout the growth and development of the tree farm.

One approach that is not currently in evidence in Tompkins County, but might be worth investigating, is the “CSE.” CSE stands for “Community Supported Energy,” and it is modeled on the successful CSA (Community Supported Agriculture) structure. This is something of a consumer cooperative: energy consumers that would like to use local resources to produce energy band together, and, through pooling investment funds, establish critical mass to bring a production facility on-line, which they pledge to support through their energy purchases. This model was first promoted by environmental advocate Greg Pahl, and has been tried with some success in Vermont.[11]

Conclusion

The above examples merely scratch the surface of possible structures for relocalizing our heat and energy markets. And the traditional approach should not be ignored, either: use of cordwood for home and business heating has increased markedly as fossil fuel prices increase and can be expected to continue to increase, particularly in rural areas of the county. More people now make a main business or a profitable sideline of harvesting firewood, or buy less fossil fuel because they harvest some firewood for their own use. Several local retail outlets and service businesses sell and/or install combustion equipment, and technology refinements have made cordwood burning cleaner and more efficient than it was in the past.

A third burning transition—based on community development and economic innovation—is needed if we are to avoid the worst potential effects of global climate change and post-peak-oil economic instability. In the first burning transition, fire changed humankind; in the second, humankind using fire changed the world until disaster threatened. In the third burning transition, humankind must organize new structures of production and exchange to socially contain the power that unlimited individual fire-use unleashes on the world, to protect both the species and the environment on which it depends. In the future, the structures so organized can be again transformed, in a fourth burning transition, to non-carbon-based feedstocks such as the sun’s direct energy, geothermal heat, and wind and wave energy.

Notes

[1] “Direct combustion” refers to biomass burned as a solid fuel, not a liquid or gas fuel product or fuel additive.

[2] New York: Basic Books, 2009.

[3] Localized or regional deforestation should not be underestimated in its capacity to decimate human, animal, and plant communities, including driving some species to extinction. It does not, however, represent a pattern of world-wide changes, despite its severe impact on circumscribed areas.

[4] Cronon, William. Changes in the Land, Revised Edition: Indians, Colonists, and the Ecology of New England. New York: Hill and Wang, 1983.

[5] Biomass/ethanol/biodiesel schemes dependent upon intensively cultivated food crops like soy or corn fail to break the connection between the oil market and alternative fuel if a system of petro-chemical input dependent agriculture is used. They also raise grave ethical concerns, commonly referred to as the “food-fuel controversy.”

[6] While current average distributional losses for electrical energy are in the range of seven percent, biomass resources, like solar resources, may be located at a greater distance from urbanized areas than existing power plants, resulting in even larger distributional losses or larger amounts of transportation energy to move the raw material closer to the point of use.

[7] More on the international market volatility of wood pellets is available in the Renewable Energy World magazine article “Time for Stability: An Update on International Wood Pellet Markets,” Feb. 4, 2008. Available at http://www.renewableenergyworld.com/rea/news/article/2008/02/time-for-stability-an-update-on-international-wood-pellet-markets-51584

[8] See The Asset-based Community Development Institute at http://www.abcdinstitute.org/ or Wikipedia on Asset-based Community Development at http://en.wikipedia.org/wiki/Asset-Based_Community_Development

[9] Cail, Krys. Tompkins County Landowners Survey. Report for Cornell Cooperative Extension of Tompkins County on the results of a mail survey of owners of large parcels of rural land in Tompkins County undertaken by the Green Cities class of Cornell University’s City and Regional Planning Department in 2005.

[10] Begun as a project for Elizabeth Keokosky’s masters degree in City and Regional Planning at Cornell University, this initiative has progressed to the point of establishing a local steering committee and is in the process of drawing up incorporation documents.

[11] Pahl, Greg. The Citizen-powered Energy Handbook: Community Solutions to a Global Crisis. White River Junction, Vt.: Chelsea Green Publishing, March 2007. See also Renewable Energy World magazine, “Community-supported Energy Offers a Third Way,” Greg Pahl, March 12, 2007. Available at http://www.renewableenergyworld.com/rea/news/article/2007/03/community-supported-energy-offers-a-third-way-47700

by Karl North

In Part One of this series, I noted that providing for the local food needs of urban populations requires a design that integrates three overlapping categories of production systems: urban agriculture systems (many small islands of gardening in the city center), peri-urban agriculture (larger production areas on the immediate periphery), and rural agriculture (feeder farms associated with village-size population clusters in the hinterland of the city but close enough to be satellite hamlets). In this month’s article, I will discuss four key issues that must be addressed in order to envision these three systems: fertility, energy, water, and pest control. But first, a word about the role of species diversity in addressing these issues.

In an energy descent environment, agriculture that incorporates the necessary diversity of species that are multifunctional — providing both ecological and other services and food — will gradually replace the current agriculture that substitutes external inputs to solve these problems.

Some of the most durable and productive low input farming systems in history are designed around animals that can accelerate the growth and conversion of plants to fertilizer. Because they are highly multifunctional, ruminant mammals rank highest among these. Beyond their manure production function, they can consume fibrous perennials unusable for human food. These perennials can grow on hill land too rocky or too erodable for food cropping. Used as work animals, ruminants multiply the energy input from human labor many times. They provide a source of concentrated protein food that can be conserved and stockpiled for winter consumption. They provide hides and fiber for clothing as well. Cattle, sheep, goats, alpacas, llamas and bison are ruminants that we can most easily use in agricultural systems in our environment.

A few other animals serve some of these functions and, properly integrated, often are found enhancing these systems. Pigs and poultry can do the hard labor of turning manure into compost, and can thrive by consuming unused and pest species as well as waste streams from farms and kitchens. They both can reduce a patch of weeds to bare ground ready for planting, and pigs will perform tillage as well. They will consume crop residues and garbage from food preparation, and convert it to fertilizer as well as their own production as food animals. Poultry will consume weeds and insect pests. Edible fish and other water animals like frogs and snails can perform the same functions in aquatic systems. This map of flows among components demonstrates the potential of integrated systems (Figure 1). Notice that the flows may go in both directions among all components:

Figure 1. Dynamics of a hypothetical sustainable system

1. Soil Fertility

As energy descent deepens, two key fertility crutches of industrial agriculture will become cost-prohibitive. Synthetic nitrogen fertilizer production requires large quantities of energy. The decreasing quality of phosphate deposits is already driving up the price of phosphate fertilizer (up 700 percent in a recent 14-month period) and production is estimated to peak within 20 years.[1] Moreover, the affordability of most off-farm sources of fertility is derivative of cheap oil. But minerals essential to farm fertility can be recirculated within farms or at least within local food systems, and recirculation capacity will become essential to sustainable design.

On-farm recycling. Building high levels of soil organic matter (SOM) will be central to agroecosystem design because SOM is key to achieving not only fertility goals, but also healthy water and mineral cycles, maximal photosynthetic energy capture and use, and optimal biodiversity. Humid, temperate environment soils are exceptional in their ability to store organic matter. French scientist Andre Voisin demonstrated 50 years ago that pulsed grazing (explained below) on permanent pasture is the fastest soil organic matter building tool that farmers have, at least in temperate climates like ours.[2]

The structural element historically proven to work best in these environments is a grass/ruminant complex. This subsystem works on the principle that manure from a portion of the farm devoted to grazing animals will not only sustain the fertility of their forage land, but generate a surplus that will sustain a smaller acreage of annual crops (Figure 2). It can sustain fertility well enough to have generated numerous historical models around the world. The process was used in lowland northern Europe and New England before the industrial age.[3] Cuban research into its potential demonstrated the effective ratio of forage acreage to support cropland fertility to be 3:1 in that environment. In other words, the ruminant stock subsisting on three acres of forage produced enough manure to sustain both the fertility of the forage land and one acre of cropland. This conceptual model, adapted for environmental differences, provides a basis for system design here. Perhaps the most important design question for our purposes is the ratio of forage to cropland that is sustainable in our environment.

Figure 2. Fertility subsystem conceptual model

The full soil organic matter building process requires a design focus on three crucial areas of the agroecosystem:

• Pasture management for a wide variety of productive, palatable perennial forages, kept in a vegetative state (high growth) by pulsed grazing (see below) throughout the growing season to maximize biomass production;

• Manure storage in a deep litter bedding pack under cover during the cold season to maximize nutrient retention and livestock health;

• Conversion of the bedding pack to compost at a proper C/N ratio during the warm season to maximize organic matter production, nutrient stabilization, and retention;

• Field application of the compost during the warm season as well, to maximize efficient nutrient recycling to the soil.

Pulsed grazing is so important to the success of the soil building subsystem that it warrants an explanation in some detail. Pulsed grazing is a method of repeated grazing of paddocks in a pasture that controls stock density and timing of stock movement in and out of paddocks to maximize forage production over the growing season. This in turn maximizes manure production to build soil organic matter. Forage plants experience repeated pulses of growth and removal of biomass, both above and below ground, over the growing season. Key points :

• Stock enter a paddock before forage leaves its vegetative stage and growth slows.

• Stock leave a paddock while there is still sufficient forage leaf area to jump-start regrowth.

• Grazing causes forage roots to die back, which adds soil organic matter from the dead root mass.

• Stock return to the same paddock when leaf and root regrowth have fully recovered vigor and abiity to recover from another grazing.

Recycling from Human Communities. It should be clear from the integrated model (Figure 1) that solving the fertility problem must include repairing the broken nutrient cycle between human excreta and the land. If this seems an insurmountable challenge to modern urbanites, we need only recall from history that whole societies including large cities have managed excellent recycling of “night soil.” Among the numerous examples is China, where until the 1950s, 98% of the fertilizer used to grow food came from recycled and organic sources.[4] Relocalization of food production is necessary to reduce the cost of repairing the nutrient cycle. If Tompkins County exports milk products to NYC, what will it cost to return the nutrients in the exported milk to our farmland? In a more county-based food system, methods for recycling humanure and other food garbage that are appropriate to urban, peri-urban, and rural farming sites are more feasible, and will be discussed in the sections devoted to these production systems.

2. Energy Capture

Ancient sunlight in fast-depleting, finite sources (oil, gas, coal) presently supplies over 80% of the energy used in the industrial form of agriculture that produces most of the food consumed in the United States. Natural ecosystems consist of food chains supported entirely by current sunlight, so it is easy to design farming systems to work the same way, as was done through most of agricultural history. Solar energy that is accessible directly on farms comes in forms that are far less concentrated than the fossil fuels that we are used to. Therefore we need to design farms that can be productive on far less energy. The challenge is to capture solar energy in as many places as possible as it flows through the agroecosystem.

The carbon cycle is an important way solar energy flows through our world. All metabolic processes in agriculture and other biological systems release carbon to the atmosphere. Tillage that stimulates activity in the soil food web, animal and human digestion and composting are examples. But criticism of these processes as feeding greenhouse gas build-up is mistaken. Biomass conversion to food, fertilizer, or fuel is carbon-neutral over time because its emissions, unlike those of fossil fuels, are part of the biospheric carbon cycle. The important question here is how to manage the carbon cycle to maximize long-term levels of soil carbon sequestered as soil organic matter.

Animal Power. Currently (2009) people tend think of solar capture in terms of relatively high technologies like those that convert wind and sunlight to electricity. Working models exist of homesteads and even farms that are self-sufficient in electricity using small-scale equipment of this sort. However, most analyses of economic viability related to wind/solar electricity production at any scale are based on current costs in the manufacture and maintenance of these systems, all of which still rely on cheap oil. These analyses fail to account for already exponentially rising costs in raw materials and production of the equipment. All production costs of such technologies will rise in parallel with sharply increasing energy costs as the fossil fuel era declines. Like oil, many raw materials used in these technologies are finite resources already on the downside of their historical production curve; they will become unaffordable for many uses in the future. In sum, the window of opportunity that makes these alternative energy technologies approach economic viability now may close in the future as costs begin to rise more sharply. A 10kw wind-electric rig that can power a small farm costs about $70,000, and is usually economically unfeasible even today without subsidies. What will it cost after 15 years of rising manufacturing costs? What will it cost to replace it after its 20-30 year lifetime?

However, there are ways of powering farm production that are more reliably sustainable. Just as the same breeze or brook flowing through a community might be tapped at a number of points for wind or hydropower to run a mill or pump water, solar energy can be captured to produce food or fuel by inserting species appropriately into the farm food chain. Apart from wind and flowing water, solar energy enters the farm ecosystem via photosynthesis in green plants, and flows through the system as one species feeds on another. Large herbivores tap immediately into this chain by feeding on plants that are too fibrous for food use. While they may produce food and fertility as previously described, they will do double duty as work animals in the future, thus replacing no longer affordable fossil-fueled machine labor.

Fields that grow the forages that support work animals and other grazing and foraging species will not compete with cropland. On the contrary, forage fields will provide an essential ecological service as the permanent cover necessary to sustain soil health on all sloping land. Present hillside cropland is always eroding and will be revealed as unsustainable when the crutch of cheap synthetic fertilizer is no longer available. This means that land use plans in hill country like ours will need to include a mosaic of hillside forage land and relatively flat cropland. Unless terraced, the hillsides will be most erosion-free and productive when planned to mimic natural tree-dotted savannas, as hay/pasture that includes fruit and nut orchards, for example. The trees themselves will be multi-functional, producing food or forage, improving the cycling of soil nutrients, providing windbreaks, and shading the grazing animals.[5]

Integrated as described here, draft animals like oxen, mules, and horses will optimize the health and productivity of the agroecosystem.

Biofuels. Energy for winter heating and for cooking is almost as important as food production for survival in these latitudes. As much as possible of that energy should come directly from the sun, as in passive solar designs for both heating and cooking. But rural land use will need to reflect increasing local dependence on firewood for the rest. Sustainable forest management and harvest will again become a significant share of rural agricultural production, but serving local urban and village communities not faraway paper mills. Forest conservation and reforestation should start with places that need to be forested for additional reasons, like ridge tops that protect water catchments, and hedgerows that serve as shelterbelts and browse for livestock.

Production of most other biofuels at any significant scale has been criticized as unsustainable on many counts. One that may prove sustainable is small-scale biogas generation on farms, because it extracts methane from some of the farm’s normal manure production before it continues in the farm’s nutrient cycling loop, as in Figure 1. Most attempts at biogas generation on US farms have been large-scale, high-technology projects aimed at fixing the pollution problem caused by industrial scale dairy farming. So far, farmer adoption of the expensive and complex equipment has been poor, despite subsidies. Meanwhile, small scale biogas generators aimed at producing light and cooking fuel in Third World peasant communities have proliferated, because they cost as little as $30.[6] Biogas production requires no separate biofuel crop that might compete with food production, or inefficient distillation process. For these reasons biogas production at an appropriate scale merits consideration as a way of capturing solar energy as methane fuel for limited use on farms and perhaps even surrounding communities.

3. Water Capture and Use

We live in a climate that is wet yet subject to droughts during the growing season. High productivity food production requires a constant water supply to cover these gaps. Maximizing productivity in the small areas devoted to urban agriculture is especially important, because of their high value in a relocalized food system. Sufficient water falls on urban areas and needs to be conserved there. Barrels can catch only a fraction of roof runoff, and will not be enough for the irrigation needs of a successful urban and peri- urban agriculture. Small water catchment ponds must become a normal part of both the public and residential urban landscape. Pavement runoff will need to be directed to the larger ponds, which might be located in parks and community gardens.

Rural agriculture will need more extensive water capture plans to hold and use water for farms and whole watersheds. Such a system should be gravity feed system, in order to avoid the increasingly high cost of pumping. An example is the keyline plan that traps some surface water in upper fields and directs the excess into strategically located irrigation ponds.[7]

Our irrigation needs in New York may be intermittent but still will require a lot of pipe and other delivery hardware when scaled up to cover all food production land. Rising costs of current irrigation delivery systems may become a limiting factor, forcing the invention of ones that use cheaper materials. This has been the experience in Cuba, whose year-round agriculture is heavily dependent on irrigation. Cuba’s artificially triggered “peak oil” experience has been a bellwether and a source of lessons for the rest of the world.

Ponds will be needed to serve numerous purposes, as in Figure 1. Basins to process biodigester outflow and other organic liquid waste can grow algae and duckweed for animal feed, and then feed the cleansed water into ponds for fish and other aquaculture, as in Figure 3. They will attract aquatic life including species useful for garden pest control, and enhance human quality of life as they beautify places and improve microclimates.

Figure 3. Facilities for bioconversion using the UNU/IAS integrated biosystem at Montfort Boys Town, Suva, Fiji

Wetlands abound in New York and are among the most productive natural ecosystems. Because of their natural potential, they can be harnessed for highly productive agricultural use yet be managed to retain much of their natural function. Historical and contemporary models include wetland systems that fed older civilizations from the Aztecs to the Incas in Latin America, as well as many parts of Southeast Asia today. Typically, as in the Aztecan systems known as chinampas, farmers cut canals through the wetland and use the soil to create beds raised above the water level for agricultural use. The canal system is designed to allow the water control that keeps the raised beds well watered without being subject to undesirable flooding. Because of the ubiquitous water, these wetlands are highly productive as both agricultural and aquacultural systems. They produce so much biomass that they tend to maintain their own fertility, dredged from the decomposing detritus in canal bottoms.

One such wetland, adapted from lowland English agriculture, became the core of a highly sustainable agricultural system that supported the population of colonial Concord, Massachusetts for many generations.[8] The Great Meadow that traversed the village and all other nearby riverine flood plains was a swamp commons that was first flooded to deposit silt, then partly drained and reserved for pasture and hay as it dried out during the growing season. As in parts of Europe, these well-watered riverine meadows produced enough livestock feed, livestock, and manure to sustain the fertility of the adjacent dry lands devoted to tillage agriculture. Figure 4 shows that already by 1650 careful allocation of land use had taken place on a functional level to sustain the whole system. Historical models like these suggest that we will want to regard modified wetlands as an important agricultural asset in the energy descent era.

Figure 4. Concord, Massachusetts, 1652. From The Great Meadow: Farmers and the Land in Colonial Concord.

4. Pest Control

From a systems perspective, pest problems are “structural,” hence best addressed by system design rather than treatment with pesticides. In this section I will summarize two main strategies addressed in order of importance: a focus on the food species themselves, and then the layout of the physical and biological environment as it affects these food species.

Much as health care in humans requires preventive medicine, we must grow healthy plant and animal species as a first step in pest control. A primary structural problem is the genetic industrialization of most agricultural plant and animal species, which was gradually achieved in modern times by breeding processes that prioritized productivity and short-term profit over other genetic traits, like hardiness. Moreover, relying on pesticides, even “natural” ones, to protect these weakened subspecies inevitably fails over time because pests gradually adapt to conditions and treatments that become heavy- handed and routine. An example is parasite resistance in sheep, which has been neglected and lost. The resulting industrial breeds must be medicated so often that the parasites are gradually becoming immune to most medications. To be sustainable, food production systems will need to return to varieties and breeds that, while sometimes less productive, have more genetic defenses. By genetic selection farmers can rebuild hardiness in industrial breeds as well.

The design of alternative environments uses three general strategies of pest control: luring or driving them away with trap or repellent species or physical barriers; creating species and habitats that attract “beneficials,” species that prey on pests; and continually altering the environment with crop and animal rotations that shift them away from pests.

This last strategy points up a characteristic of the natural world that needs to be taken into account: it is always evolving. In the long run this means that pest control strategies can never be permanent, but must always be evolving to stay a step ahead of pests as the latter adapt to current controls. The downfall of industrial pest controls is their heavy- handed strategy of total pest elimination and routine medication. Ironically this creates the environments most conducive to genetic evolution in pest organisms toward immunity from controls.

Recourse to medicinals and other treatments is a strategy of last resort, indicating a design failure in the production system, which must be addressed.

Conclusion

From the foregoing it seems clear that life after fossil fuels will demand much reorganization of food production. To create a local agriculture that feeds the county, the map of rural and urban land use will change dramatically. In the countryside, wetlands and floodplains, hillsides, flatlands, and woodlands will have specific uses designed to maximize while sustaining the productivity of whole agroecosystems. Essential rural land use components might be:

1. Hillsides in forage land sufficient to support cropland fertility.

2. Flatlands in crop rotations.

3. Wetlands and floodplains development and water management for high forage or crop production.

4. Sufficient forest for county firewood and basic construction needs, managed for maximum regenerative capacity, which requires fencing out livestock. Woodland regenerative capacity equaling 1 cord/acre/year is a common rule of thumb.

Many uses of city land will no longer be economical in the coming years. Land will need to be converted to food production and its supporting functions, like composting and water conservation. Prime candidates for conversion are the commercial strips now inhabited by national corporate chain stores. Private and public parking lots, which energy descent writer William Kunstler sees as soon-to-be-dysfunctional “missing teeth in the urban fabric,” are another example. During Cuba’s artificially triggered encounter with “peak oil,” public interest dictated that a better use of resources was to raze ageing buildings to create urban garden space, rather than to restore them.

In the integrated system approach described here, the functions of plants and animals will undergo marked changes. The functions of many species to facilitate tight nutrient cycling, labor, and other services that underpin the health of the whole agroecosystem, will become more important. In the case of some animals, these functions will become primary, and food production will become a secondary function, with numbers of animals on farms directed to their primary functions. The result will be a general production system model that aims for maximum sustainability, remains within the carrying capacity of the natural resource base, and within that framework, feeds the maximum number of people per acre of land used.

Notes

[1] Peak Phosphorus: The Sequel to Peak Oil http://phosphorusfutures.net/index.php?option=com_content&task=view&id=16&Itemid=30

[2] Voisin, André. Grass Productivity, 1959 (English translation in 1988). Island Publishers, Washington, D.C., U.S.A.

[3] Donahue, Brian. 2004. The Great Meadow: Farmers and the Land in Colonial Concord. New Haven:Yale University Press.

[4] http://www.fairviewgardens.org/pub_next_frontier.html

[5] North, Karl. 2008. Optimizing Nutrient Cycles with Trees in Pasture Fields. LEISA Magazine, 24 (2), March 2008. http://www.ileia.org/index.php?url=magazine-list.tpl&p[source]=ILEIA

[6] Preston, T.R. 2005. Biodigesters in Ecological Farming Systems. LEISA Magazine, 21 (1), March 2005. Also: http://www.ruralcostarica.com/biodigester.html

[7] http://www.keyline.com.au/ad1ans.htm

[8] Donahue, op. cit.

by Karl North

Editor’s Note: This article is the first in a three-part series. Part 2 will appear next month.

In this paper I will attempt a preliminary vision of a relocalization of food production designed to feed the population of Tompkins County. A project of this scope implies a reorganization of food processing and distribution that, while not included in this first iteration, will need to be integrated in a later, expanded overview.

My purpose is to explore the kind of local food system that will be needed as this country faces sharply lower access to the energy sources on which our present industrial form of agriculture and food economy heavily depends. I will describe the types of local farming enterprises, farming methods, resources, and land use needed to confront a future of much lower energy use. A documented baseline assessment of current food production and county resources is not an objective of this essay, but will be essential to a detailed planning effort. The picture presented here is intended to be general enough to be useful in planning the relocalization of foodsheds that include an urban center the size of Ithaca, New York.

In these first few pages, I will set out my premises and theoretical points of departure in some detail to explain the fundamental changes in perspective I think are necessary to envision how and where we produce food in the future.

This vision will rely on several critical premises:

1. The premise underlying all work of TCLocal is that a permanent decline in the availability and affordability of liquid fuels and related rising costs of all energy sources will inevitably lead to much lower energy use and increasing importance of local scale in human affairs. The present long-distance food economy will shrink, and consumers will need to rely increasingly on local food production.

2. This “energy descent” will force the transformation of food production toward low external input systems that rely more on human labor and models of healthy, highly productive ecosystem processes common in nature instead of the high energy cost technological substitutes on which agriculture, including most of organic agriculture, depends today.

3. Our world is systemic in nature (parts are more or less connected), and this has important implications for attempts to change it. Problems we want to solve are, as the system analysts like to say, “structural,” and require intervention in several places. So the single-issue approach to any kind of change is eventually bound to fail to meet expectations. For example, dieting to solve weight problems never works for long if the problem lies in the structure of our life. In addition to changing what we eat, maybe trading the car in on a bike and some tools to dig the lawn into a vegetable garden would produce better results.

   

   Moreover, despite best intentions, in a systemic world we can never make just the one change we aim for. Complex systems are squishy like a balloon: squeezing just one end only makes the balloon blow out in other unexpected places. Change agents need a holistic approach that recognizes that consequences of any interventions are multiple ripple effects that go distant in space and time. This approach has important implications for design at every level of scale.

   At the garden or farm scale we want to build in multifunctionality, where parts of the system serve more than one purpose. Plants and animals that provide food, for example, may also provide ecological services necessary for the health and productivity of the whole. Ecological services are the benefits arising from the functioning of the ecosystem, in contrast to purchased inputs.

   At the level of the food system, where different elements of production, processing, and distribution can be designed as a cooperating whole, we need to build in complementarity as to what is produced, and services that are shared among the different types of production units to be described in this paper. Urban gardens may best serve the county food system by growing fresh produce, thus complementing rural farms that produce less perishable foods, for example.

   At the community level, we need to view the reorganization of the food system as affecting and affected by the reorganization of all other infrastructure and institutions impacted by reduced energy availability, e.g., industry, housing, markets, transportation, sanitation, information flow, knowledge production, etc.

   Most important from a systems perspective, we need to regard far-reaching changes like those to be proposed here as experimental, and track for unintended consequences in time and space. This approach, known to ecologists and other systems thinkers as adaptive management, requires constant monitoring and replanning in the face of uncertainty about consequences.

4. The design of a relocalized agricultural system will need to address root causes. For example, the proximate causes of flooding may be failed riparian buffers and levees, but the root causes are pavement, bare ground, and other surfaces that create surface run-off, soils compacted and depleted of water-holding organic matter, agricultural field drains, and channeling that cuts streams and rivers off from their historic flood plains. Attention to root causes forces the need for the systems perspective outlined in premise #3. If, from the viewpoint of sustainability, high-input, oil-dependent agriculture is now revealed to be a design failure from the outset, little is gained by piecemeal solutions like replacing chemical inputs with “natural” ones. Rather than the input substitution approach, efforts are better directed toward whole agroecosystem design that integrates a diversity of spatial and temporal elements.

Understanding Sustainability. In addition to working from the stated premises, I want to ground the proposals in this visionary project in a working concept of sustainability based on ecological science. This is important at this historical juncture for a couple of reasons. The common practice of confusing and conflating sustainable agriculture and organic agriculture will be counterproductive in the coming era when shrinking access to cheap energy will reveal the unsustainability of most current forms of agriculture, including organic. The flowering of the organic farming movement, in which I have been a practitioner for 30 years, generated much innovation that will be useful in coming years. But it also produced the delusion of a luxury version of sustainability, because it occurred in and was shaped by an era of cheap oil. Limited by economic forces and a focus mainly on environmental issues, organic farming became more a matter of substituting “greener” inputs for those of industrial agriculture rather than seeking input independence through systematic redesign. Awareness that many of the “greener” inputs depend on fast-depleting, often finite, soon-to-become-expensive resources still has not penetrated the organic movement sufficiently to become a paramount concern. A common practice in organic vegetable farming, for example, is to import fertility in the form of compost from factory-style dairy and poultry farms.

None of the above should be construed as an attack on the organic farming movement, or a dismissal of its contributions to the development of a truly sustainable agriculture. But we need a more rigorous design tool than “organic” to select from those offerings.

Sustainability means that local food production systems must support the food and fiber needs of a given human population without exceeding their carrying capacity (CC). A working definition of CC might be the maximum indefinitely supportable ecological load of an ecosystem or area.

We must be clear about what constitutes a supportable ecological load. Depletion of a finite resource like copper or phosphorus is not supportable unless we find a way to perfectly recycle as much of it as is needed (not downcycle it as in plastic bags --> park benches --> landfill). Petroleum products used for fuel are not recyclable, and anything needing those fuels in its production is therefore unsustainable. The supportable load on renewable resources on which we depend is limited to their refresh rate. The rate at which a farm consumes soil organic matter depends on the capacity of the agroecosystem to rebuild it. Less evident, but perhaps ultimately most important,is the load of work we place on natural systems to absorb concentrations of substances and handle imbalances that we create. That load can become insupportable, either because it becomes too great or because we weaken the ability of natural systems to do the work.

In short, the success and survival of all human activity rests on and must be subordinate to the continuing health of the natural resource base and the ecosystems that underpin it. Encapsulated in the phrase, “Mother nature bats last,” this means that any sacrifice of ecological health to advance human affairs eventually results in losses to society. Economic profit gained in the short term at the expense of the natural resource base and its health leads inevitably to economic loss in the long term.

The CC of a specific farm or regional landscape at a given historical moment may have eroded far below its potential. Industrial agriculture has indeed damaged the CC of much of the agricultural resource base. At present, technological props based on cheap oil have created a temporary, artificially higher CC that ecologist William Catton called “phantom carrying capacity.”[1] Continued belief in this phantom can prolong the overshoot and erosion of real CC long enough to cause the population to collapse. Our present food system is operating at phantom CC. This is due to a level of agricultural productivity that is temporarily and artificially high because it relies on fossil fuels and other raw materials that are finite and fast depleting. Over 80 per cent of the energy on which our food system runs comes from oil. In practical terms this means that we are feeding more people than is sustainable (at least on a global basis), because human populations have ballooned in response to rising food production. Equitable food distribution is an essential response to the problem but is ultimately insufficient unless agriculture itself can be organized on a sustainable basis.

On the other hand, human intervention can often rebuild CC and possibly improve it somewhat. Effective agroecosystem design can improve farm sustainability, for example, by building in sufficient species diversity to provide necessary farm inputs and ecological services “for free” to replace unsustainable external inputs to farms.

Finally, “needs of a given human population” is a slippery term, the definition of which varies widely from one culture to another. We need to ask: How much material consumption does our quality of life really require? In regard to food, does discretionary consumption exist which, if reduced, could allow agriculture to feed more people?

Despite the complexity of these questions, thinking about sustainable design to respect carrying capacity has effectively focused the attention of ecological scientists on maximizing the long-term health of four interrelated ecosystem processes in agroecosystems:

1. The mineral or nutrient cycle

2. The water cycle

3. The energy flow

4. The structure and interactions of the biological community

A focus on these four processes leads to the development of principles or attributes of sustainable agroecosystem design intended to maintain, or in many cases regenerate, the health of these ecosystem processes. Some of the widely accepted principles and their implications are:

• Low external inputs — Input self-sufficiency.

• Low emissions — Closed nutrient and carbon cycles that avoid losses of valuable resources that eventually cause environmental damage.

• Stability – Resilience – Adaptive Capacity — These qualities of sustainability are all necessary, but since they exist somewhat in tension, there must be balance among them. Stability is the quality that produces reliable results and minimizes risk, but in excess, stability can become rigidity. However, a certain flexibility is required for resilience, which is the ability to rebound from sudden change like a dry period in the farming season. Adaptive capacity to respond to slower changes like a gradually invasive plant disease also requires flexibility. Reserves of material or energy, overlaps, redundancy, or other slack in a system provide that flexibility, but at the price of efficient use of resources.

• Knowledge intensity — Reliance on technologies that are powerful but derivative of a narrow, specialist knowledge base will give way to a broader, more demanding knowledge of farms as complex ecosystems of interdependent species, a knowledge that enables the creation of biodiversity to capture synergies, to biologically control pests, for example.

• Management intensity — Farming for input self-sufficiency and low emissions will require more labor devoted to management planning and monitoring to replace other resources or use them more efficiently to maximize sustainable yield: productivity per acre.

• Local food self-sufficiency and national food sovereignty

These principles fit well with the design imperatives of a future marked by gradual loss of sources of cheap energy. Aimed at maximizing the ecosystem processes described before, these design principles will guide the visioning effort.

The visioning process will draw on several main resource areas:

• Known principles of agroecology and their relation to the concept of sustainability as outlined above;

• Historical knowledge of how production was achieved before the era of cheap energy and other inputs — as late as the early 20th century in some locations;

• Subsistence and semi-subsistence farming systems in agrarian communities on the periphery of the global industrial economy, which have managed to escape the imprint of the current system;[2]

• Contemporary models of large-scale conversion from industrial agricultural systems to localized, low input agricultural systems as in Cuba,[3] the resources of the Permaculture[4] and Transition Towns[5] movements, and some of the more sustainable design efforts to develop very low external input systems in the organic agriculture movement.

From these resources I will attempt to extract and introduce a set of general food production system design strategies that follow principles already outlined above. Many of their elements have in common the goal of designing for food and other species that are multifunctional, delivering ecological services presently provided by the external inputs in our industrialized food system that will become prohibitively expensive in the future. Elements of these food system design strategies include:

1. Integration of crops and livestock

2. Animal, human- and small-scale wind, hydro, and solar as the primary energy sources of agricultural production

3. Perennial crop polycultures, in particular,perennial carbohydrate crops(nutritionally, hazelnuts can be seen as equivalent to soy, chestnuts as an equivalent to corn)

4. Perennial forage polycultures under intensive management (variations on an interdependent triad: grasses for bulk, legumes for nitrogen, deep-rooted broad-leaf forbs for minerals)

5. Agroforestry and sylvopastoralism

   1. Alley cropping/grazing within perennial polycultures

   2. Terracing, or return of perennials to erodable slopes

6. Intensive water management: capture and distribution swales, rooftop capture, microclimate creation, ponds and filter wetlands for storage, nutrient processing and aqua-ecosystem development

7. Extended growing season and harvest technologies

8. Intensive nutrient management

   1. Repairing and tightening broken and leaky nutrient cycles: food = waste = food

   2. Rotations that manage nutrient capture and use

9. Intensive bed growing

10. Biocontrol of pests: pest predator production and habitats, trap crops

11. Plant families designed for symbiosis

12. Stacked species for sunlight capture or shade or wind protection: vertical plant growth — vine crop fences, espalier

13. Cooperative management: neighborhood and community gardens, revival of the commons

Historical models of energy-efficient foodsheds that include an urban population suggest the need to design a whole that integrates three somewhat overlapping categories of production systems:

• Urban agriculture — many small islands of gardening in the dense city center

• Peri-urban agriculture — larger production areas in the immediate periphery

• Rural agriculture — feeder farms associated with village-size population clusters in the hinterland of the city but close enough to be satellite hamlets

The design of each type of system will vary depending on its available resources, its appropriate role in feeding the county population, and its input support function for the other production categories. In parts two and three of this paper I will describe some general sustainable design considerations, and then build on them to offer a vision of each of these three food production systems. My effort is intended to build on earlier TCLocal articles relating to land use and food production.[6]

It bears pointing out that the reintegration needed to transform

our food system will force the solution to some of our society’s worst problems. In addition to better food quality, the reduction of agricultural and other pollutants, and an increase in food security, the changes required for truly sustainable food production will rebuild community and begin to mend what Engels and Marx called the “metabolic rifts” in both our farms (e.g., broken nutrient cycles) and our communities (e.g., the broken connection between city and country, man and nature). These systems thinkers saw that the notion of metabolism that in biology refers to chemical processes and transactions essential to maintain life has its counterpart in ecosystems and social systems.

NOTES

[1] Catton, William R. Jr. Overshoot: The Ecological Basis of Revolutionary Change. Urbana and Chicago: University of Illinois Press, 1982.

[2] Bennholdt-Thomsen, Veronika, and Maria Mies. The Subsistence Perspective: Beyond the Globalized Economy. London: Zed Books, 1999.

[3] Funes, Fernando et al. Sustainable Agriculture and Resistance: Transforming Food Production in Cuba. Oakland: Food First Books, 2002.

[4] Mollison, Bill. 1997. Permaculture: A Designer’s Handbook. Tyalgum, Australia: Tagari Publications, 1997. Examples: http://www.youtube.com/watch?v=Bw7mQZHfFVE&NR=1

[5] Hopkins, Rob. 2008. The Transition Handbook. White River, Vermont: Chelsea Green Publishing, 2008.

[6] For a list, see the TCLocal archives (http://tclocal.org/archives.html).