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REAP Study for Resilient Economic Agricultural Practices in St. Paul, Minnesota

REAP Study for Resilient Economic Agricultural Practices in St. Paul, Minnesota
Corn stover is an important livestock feed and will probably be a major source of renewable bioenergy, especially in the U.S. Corn Belt. Overly aggressive removal of stover, however, could lead to greater soil erosion and hurt producer yields in the long-run. Good residue management practices could help prevent erosion of valuable topsoil by wind and water while still providing a revenue source for producers, either as livestock feed or for use in renewable bioenergy. Plant residues also contribute to soil structure, nutrient cycling, and help sustain the soil microbiota. Good residue management could also help control the loss of greenhouse gases from agricultural soils that could add to already increasing levels of atmospheric greenhouse gases contributing to global climate change. Cumulative GHG emissions varied widely across locations, by management, and from year-to-year. Despite this high variability, maximum stover removal averaged across all sites, years, and management resulted in lower total emissions of CO2 (-12 ± 11%) and N2O (-13 ± 28%) compared to no stover removal. Decreases in total CO2 and N2O emissions in stover removal treatments were attributed to decreased availability of stover-derived C and N inputs into soils, as well as possible microclimatic differences. Soils at all sites were CH4 neutral or small CH4 sinks. Exceptions to these trends occurred for all GHGs, highlighting the importance of site-specific management and environmental conditions on GHG fluxes in agricultural soils..

FieldValue
Tags
Modified
2021-12-30
Release Date
2020-08-25
Frequency
Irregularly
Identifier
fbda3036-2634-4566-abec-0a488eea1f1a
Spatial / Geographical Coverage Area
POLYGON ((-95.307361 44.715877, -93.098552 44.715877, -93.098552 44.234069, -95.307361 44.234069))
Publisher
U.S. Department of Agriculture - Agricultural Research Service
Temporal Coverage
April 1, 2005 to September 22, 2011
License
Contact Name
Baker, John
Contact Email
Public Access Level
Public
Program Code
005:040 - Department of Agriculture - National Research
Bureau Code
005:18 - Agricultural Research Service
Source ID
fbda3036-2634-4566-abec-0a488eea1f1a
Harvested from Geodata Harvest
Harvest Source TitleGeodata Harvest
Harvest Source URIhttps://geodata.nal.usda.gov/geonetwork/srv/eng/csw
Last Harvest PerformedThu, 04/22/2021 - 01:01