Data from: Chapter 3: Cropland Agriculture. U.S. Agriculture and Forestry Greenhouse Gas Inventory: 1990-2018

The primary greenhouse gas (GHG) sources for agriculture are nitrous oxide (N2O) emissions from cropped and grazed soils, methane (CH4) emissions from ruminant livestock production and rice cultivation, and CH4 and N2O emissions from managed livestock waste. The management of cropped, grazed, and forestland has helped offset GHG emissions by promoting the biological uptake of carbon dioxide (CO2) through the incorporation of carbon into biomass, wood products, and soils, yielding a U.S. net emissions of 5,903 MMT CO2 eq (million metric tonnes of carbon dioxide equivalents). Net emissions equate to total greenhouse gas emissions minus CO2 sequestration in growing forests, wood products, and soils. The report 'U.S. Agriculture and Forestry Greenhouse Gas Inventory: 1990-2018' serves to estimate U.S. GHG emissions for the agricultural sector, to quantify uncertainty in emission estimates, and to estimate the potential of agriculture to mitigate U.S. GHG emissions. This dataset contains tabulated data from the figures and tables presented in Chapter 3, Cropland Agriculture, of the report. Data are presented for Cropland Soils (N2O), Rice Cultivation + Residue Burning (CH4 + N2O), and Agricultural Soil Carbon and Amendments (CO2). Please refer to the report for full descriptions of and notes on the data. Resources in this dataset:Resource Title: Maps 3-1 through 3-5e. File Name: Map3_1_through_3_5e.xlsxResource Description: All maps in Chapter 3 contain data that is based on fine-scaled variation at field scale that is provided in the map figure, but is not feasible to insert into the spreadsheet.Resource Title: Chapter 3 Appendix Tables. File Name: Ch3_Appendix_Tables.xlsxResource Description: Chapter 3 includes 12 appendix tables, that include data on, inter alia, state level annual nitrogen inputs to cropland soil, state level nitrous oxide emissions from cropland agriculture, and state level soil organic carbon change from cropland agriculture in 1990, 1995, 2000, 2005, 2010, and 2013-2015.Resource Title: Table 3-1. File Name: Table3_1.csvResource Description: Estimates and Uncertainties for Cropland Greenhouse Gas Emissions, 2018. Measured in Millions of Metric Tons, Carbon Dioxide Equivalent (MMT CO2 eq.) and also displayed in percentage units.Resource Title: Table 3-2. File Name: Table3_2.csvResource Description: Summary of Greenhouse Gas Emissions from Cropland Agriculture, 1990, 1995, 2000, 2005, 2010, 2013-2018. Measured in MMT CO2 eq. (millions of metric tons, carbon dioxide equivalent).Resource Title: Table 3-3. File Name: Table3_3.csvResource Description: Area by Cropland Systems, 1990, 1995, 2000, 2005, 2010, 2013-2015. Data presented in million hectares.Resource Title: Table 3-4. File Name: Table3_4.csvResource Description: Nitrous Oxide Emissions from Cropland Systems, 1990, 1995, 2000, 2005, 2010, 2013-2015 in MMT CO2 eq. (Millions of Metric Tons, Carbon Dioxide Equivalent).Resource Title: Table 3-5. File Name: Table3_5.csvResource Description: Methane from Rice Cultivation by State, 1990, 1995, 2000, 2005, 2010, 2013-2018 in MMT CO2 eq. (million metric tons CO2 equivalent).Resource Title: Table 3-6. File Name: Table3_6.csvResource Description: Greenhouse Gas Emissions from Agriculture Burning by Crop, 1990, 1995, 2000, 2005, 2010, 2013-2018 in MMT CO2 eq. (million metric tons CO2 equivalent).Resource Title: Table 3-7. File Name: Table3_7.csvResource Description: Soil Organic Carbon Stock Change for Cropland Systems, 1990, 1995, 2000, 2005, 2010, 2013-2015 in MMT CO2 eq. (million metric tons CO2 equivalent).Resource Title: Data from Figure 3-1a. File Name: Figure3_1a.csvResource Description: US Planted Area by Cropland System, 1990-2015 in Mha (million hectares).Resource Title: Data from Figure 3-1b. File Name: Figure3_1b.csvResource Description: US Planted Area by Crop Type, 1990-2015 in Mha (million hectares).Resource Title: Data from Figure 3-2. File Name: Figure3_2.csvResource Description: Annual Nitrogen Inputs to Cropland Soil, 1990-2015 in Tg N (teragrams nitrogen).Resource Title: Data from Figure 3-3a. File Name: Figure3_3a.csvResource Description: Total Area with Residue Burning Management by Crop, 1990-2014 in hectares.Resource Title: Data from Figure 3-3b. File Name: Figure3_3b.csvResource Description: Percentage of Crop Production Area with Residue Burning Management, 1990-2014.Resource Title: Data from Figure 3-4. File Name: Figure3_4.csvResource Description: Impact of Key Management Practices on Soil Organic Carbon Stock Changes, 1990-2015 in MMT CO2 eq. (million metric tons CO2 equivalent).Resource Title: Chapter 3 tables, figures, maps and appendices. File Name: Chapter 3 Data.zip