Extended Data Fig. 3: The bivariate relationships between decadal changes in soil C and N stocks in the organic horizon (ΔSoil COrganic stock and ΔSoil NOrganic stock) and explanatory variables (n = 361) for all proposed causal paths in the structural equation model.
From: Tree diversity increases decadal forest soil carbon and nitrogen accrual
MAT, the long-term average of mean annual temperature; CMI, the long-term average of mean annual climate moisture index; FDis, functional diversity; Horizon thickness, initial organic horizon thickness; ΔThickness, decadal organic horizon soil thickness change. Higher CWMPC1 values indicate traits associated with acquisitive strategy, whereas lower values indicate conservative strategy. Higher CWMPC2 values indicate traits associated with lower tree maximum height (see Extended Data Fig. 1).
