Fig. 3: Distributions of inferred soil organic carbon accrual or priming.
From: Fine root and soil carbon stocks are positively related in grasslands but not in forests
SOC accrual or priming is inferred from residuals of the 1:1 line between standardized FRC and SOC; see Fig. 2. Data distributions are shown for shallow (<30 cm depth) and deep (30–200 cm) layers from both (a) forest and (b) grassland sites. Bins above the zero line are reflective of sites net SOC accrual and bins below the zero line reflect net priming. See Fig. S12 for raw data points of the distributions.
