The Great Lakes Bioenergy Research Center (GLBRC) Marshall Farm Scale-up fields were established in 2009 to provide a larger context for addressing biodiversity and biogeochemistry questions associated with biofuel production.
Fields are managed as native prairie, switchgrass, or continuous corn, similar to three of the GLBRC main site treatments. All fields were in the USDA Conservation Reserve Program (CRP) prior to conversion to biofuel crops (since 1987). Three similar fields have been established at Lux Arbor, on land that has not been in the CRP program.
Circles on the maps denote the location of CO2 flux towers, which measure the flow of CO2 into and out of the crop canopy and soil, and thereby allows a complete carbon budget to be constructed. This provides information on rates of carbon sequestration and loss from these different systems.