Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Model‐estimated decadal average direct N2O emissions from agricultural (a) and natural soils (b) in the seven sub‐regions of the United States. (c, d) Indicate regional contributions to the national total changes in agricultural and natural soil N2O emissions, respectively, during 1900–2019
