Fig. 1: Changes in soil organic carbon fractions from 2000 to 2022.
From: Unprotected carbon dominates decadal soil carbon increase
a Geographical distribution of soil samples collected from croplands (n = 3603; red), forests (n = 2149; yellow) and grasslands (n = 1547; blue), and each dot represents a study site. Fitted lines represent the means (± 95% CIs) of the model predictions from the LMMs (Supplementary Tables 1-2) for (b) soil organic carbon (SOC; yellow) and particulate organic carbon (POC; blue) storage and (c) POC to MAOC (mineral-associated organic carbon) ratio (POC:MAOC) in global soils. b–c Each dot represents the data from a soil sample. Source data are provided as a Source Data file.
