NOTICE (September 2017): Data previously stored at the CDIAC archive are being transitioned to the new, ESS-DIVE archive. This website provides access to the CDIAC data during the transition. If you have any questions regarding the new archive or the data transition, please contact ess-dive-support@lbl.gov.

image image image image
 

County-level Estimates for Carbon Distribution in U.S. Croplands, 1990-2005 - Legend

The following legend describes the spreadsheet headings in terms of carbon flux or distribution. Units for all values are Mg C yr-1. Megagram (Mg) = 106 gram

Legend

NPP  —  Net primary productivity or net carbon uptake
AgB  —  Carbon in above-ground biomass
BgB  —  Carbon in below-ground biomass
Harvest  —  Carbon harvested and transported off site
Residue  —  Carbon remaining on the surface following harvest