Fig. 2: Fire effects on SOC are predicted by changes in tree-based SOC, which track the aridity gradient.
From: Soil carbon storage capacity of drylands under altered fire regimes
a, Differences in the total SOC between burned and unburned vs the percent of SOC derived from tree biomass (stocks standardized to 0–20 cm of the mineral horizon). The negative slope illustrates that greater losses of SOC with burning correlate with greater losses of SOC derived from trees. b, Aridity index (lower values are drier) and the difference in SOC from trees between burned and unburned. Solid lines are linear regressions with the dashed lines representing the standard error. These averages are based on n = 49 plots distributed across the sites.
