Fig. 4: Environmental context-dependent responses of soil C accumulation in the organic horizon to functional diversity (FDis). | Nature Communications

Fig. 4: Environmental context-dependent responses of soil C accumulation in the organic horizon to functional diversity (FDis).

From: Resource availability enhances positive tree functional diversity effects on carbon and nitrogen accrual in natural forests

Fig. 4

a CMI-dependent responses; b organic horizon soil C/N-dependent responses; c HI-dependent responses. Colored lines represent the CMI-, soil C/N-, and HI-specific responses, with their bootstrapped 95% confidence intervals shaded in the corresponding color. CMI, soil C/N, and HI were analyzed as continuous variables but illustrated here based on the meaningful three levels of breakpoints (mean, mean plus, and minus standard deviation (SD)). The significance (P) is reported for each term tested, with P values calculated using a one-sided F test. CMI: decadal average of annual climate moisture index (for each plot), HI: decadal average of annual heatwave intensity (for each plot). df: degrees of freedom.

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