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Aug 4, 2022 · The achievable SOC sequestration potential in global grasslands is 2.3 to 7.3 billion tons of carbon dioxide equivalents per year (CO 2 e year −1) for biodiversity restoration, 148 to 699 megatons of CO 2 e year −1 for improved grazing management, and 147 megatons of CO 2 e year −1 for sown legumes in pasturelands.
Recent studies show that plant diversity increases soil organic carbon (SOC) storage by elevating carbon inputs to belowground biomass and promoting microbial necromass contribution to SOC storage.
- 1 Grazing Management
- 2 Fire Suppression and Woody Encroachment
- 3 Land Conversion
For most grasslands in North America, grazing management is the primary feasible management practice that can be manipulated to alter soil carbon stocks. The capacity to increase grassland system carbon stocks is a function of 1) carbon stockchanges that might be realized with a shift from suboptimal to best management practices and 2) the areal ex...
Grazing management, fire suppression, and climate interactively control grassland species composition and productivity, and these responses vary regionally. Woody plant cover is increasing in many grasslands because of management activities such as fire suppression and anthropogenic GHG emissions that increase atmospheric CO2 concentrations (Kulmat...
Agricultural policies can have a large influence on land-use change. For example, in the U.S. Great Plains during 1973 to 2000, grassland and shrubland area expanded by 2.2% while agricultural area decreased by 1.8%, in part related to farm policy programs such as the Conservation Reserve Program (CRP; landcovertrends.usgs.gov/gp/eco43Report.html)...
- Usgcrp
- 2018
Soil disturbance, such as cultivation, is a common management practice in annual row crop production that leads to greatly accelerated losses of organic matter. In the Midwest, many soils have lost 30-50% of carbon (25 to 40 metric tons of carbon per hectare) from conversion to agriculture (6).
Soil disturbance, such as cultivation, is a common management practice in annual row crop production that leads to greatly accelerated losses of organic matter. In the Midwest, many soils have lost 30-50% of carbon (25 to. 40 metric tons of carbon per hectare) from conversion to. agriculture (6).
With approximately 2% of grassland soils being re-seeded each year nationally an increase of 1 ton per hectare of carbon sequestration would offset 1.4% of annual agricultural GHG emissions.
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Jul 8, 2020 · Grasslands on drained organic (peat) soils typically release carbon at rates of up to 20 tonnes CO2 per hectare per year. Upon draining, the organic matter in organic (peat) soils is rapidly decomposed and released as carbon dioxide (CO2) gas.
