Extended Data Fig. 2: Annual GHG flux values versus water level in wetlands.
From: Rewetting global wetlands effectively reduces major greenhouse gas emissions

a, GHG balance, the nonlinear trend is formed by 103 site-year records reporting exact water levels and complete data including three major GHGs. b, CO2, CH4 and N2O exchange. NEE (c), CH4 (d) and N2O (e) exchange across climate regimes with significant differences. The numbers of records for NEE, CH4 and N2O are 777, 1,247 and 294, respectively. Significant differences in panels a and b are based on the least square method with F-statistic, panels c–e are based on Spearman correlation analysis.