Fig. 4: Relationships between plant or soil microbial diversity and soil multifunctionality.
From: Aridity-driven shift in biodiversity–soil multifunctionality relationships
a‒h Relationships between log-transformed plant species richness (a), soil microbial diversity index (b), soil archaeal richness (c), soil bacterial richness (d), soil fungal richness (e), richness of fungal saprotrophs (f), richness of fungal pathogens (g), and richness of fungal symbionts (h) and soil multifunctionality at sites with aridity <0.8 (N = 54) and >0.8 (N = 76), as well as across all field sites (N = 130; the black lines). Lines represent the fitted linear OLS model. Solid and dashed lines denote statistically significant (two-sided P ≤ 0.05) and nonsignificant (two-sided P > 0.05) relationships, respectively. Shaded areas denote the 95% confidence interval of the regression lines.
