Agroecosystems on the American Frontier: Material and Energy Systems and Sustainability Fridolin Krausmann Institute of Social Ecology Klagenfurt University Austria Geoff Cunfer Department of History University of Saskatchewan Canada
US immigration Cereal exports
George Thir and Elizabeth Demmer migration from Austria-Hungary to Kansas, 1880s Gols, Zurndorf, Ragendorf, Kaltenstein homestead in Decatur County, 1884 built a family, a farm, and an agro-ecosystem,
Q. How did the farm system that the Thirs left behind compare with that which they found (and created) on the Great Plains frontier? Comparative case studies: Theyern, Austria, 1829 Finley Township, Decatur County, Kansas, Social metabolism approach Key socio-ecological indicators
Metabolic relationships in agricultural production systems Agroecosystem Woodland Grassland Cropland Local socio-ecological system Production Livestock Farmsteads and infrastrcture Machines and tools Population Human population with certain characteristics: Age structure Fertility Mortality … Work / migrationImport / export Material / energy Work Draft power Manure Food Biomass Energy
Village farm settlement, Theyern, Lower Austria, 2002
Franciscean Cadastre, Theyern, Austria, 1829 land use & land cover map land ownership textual description of farm system and productivity quantitative data yields livestock demography taxes
Theyern land use, 1829 Area: 225 ha Population: 102 Farms: 17
Theyern 3-field rotation & dispersed fields, 1829
Consolidated farms Finley Township Decatur County Kansas 1921
Rural farm settlement in Finley Township, 2004
Census Manuscripts, Kansas, 9 snapshots of farm and family Land use crop acreage & production livestock fencing, irrigation, tractors Demography name, age, sex, literacy birthplace, parents’ birthplace, mother tongue Nested scales farm township county
Key socio-ecological indicators People and Space population density land availability Farm Productivity grain yield area productivity labor productivity marketable crop production Livestock and Nutrient Management livestock density nitrogen return
Theyern: land was scarce, but labor was abundant. Finley Township: labor was scarce and land was abundant People and Space: Population Density
Theyern: shortage of arable land Finley Township: shortage of labor to work the land People and Space: Land Availability
Theyern: considerable yields, rising through 19th century Finley Township: very high yields, falling sharply Farm Productivity: Grain Yield
Similar area productivity in Theyern and Finley Township. Large fluctuations in Kansas due to variable rainfall. Farm Productivity: Area Productivity
Theyern: 1 laborer fed 2.5 people Finley Township: 1 laborer fed 100 people (1930) Farm Productivity: Labor Productivity
Finley Township’s excess production was exported to urban, industrializing parts of the eastern US, UK, & western Europe. Farm Productivity: Marketable Crop Production
Theyern: multi-use animals—food, waste recycling, power, manure Finley: specialized animals—power (horses), grazing (cattle) Livestock & Nutrient Management: Livestock Density
Theyern: near 100% N return, using livestock manure Finley Township: 20-40% N return: soil mining Livestock & Nutrient Management: Nitrogen Return
Austria Kansas Long term trends in grain yield: Austria and Kansas, Austria: Yield increases: optimization of low input farming Kansas: Declining yields: stock depletion; large fluctuations
Conclusions Resource efficiencies Theyern: labor abundance for long-term subsistence (risk minimization) Finley Township: fertile land abundance for market production (improved standards of living) Both efficient in own way 19 th century trajectories Theyern: increasing yields Finley Township: declining yields (soil crisis by 1930s) 20 th century convergence: replacing soil with oil fossil fuels solved soil crisis in Kansas yields skyrocketed in both places by 2000