Fig. 4: Results from the field study. | Nature Communications

Fig. 4: Results from the field study.

From: Fast-decaying plant litter enhances soil carbon in temperate forests but not through microbial physiological traits

Fig. 4

Linear mixed model coefficients relating the percentage of soil C stored in mineral-associated SOC (a) and total microbial necromass (b) to the litter quality index (Litter quality; PC1 in Fig. S1C) the microbial physiological trait index (Mic. phys. traits; PC1 in Fig S1D), fine root biomass, soil pH, oxalate-extractable iron (Fe-ox), and soil clay content. Plot shows standard error (n = 54; inner bold lines) and 95% confidence intervals (outer lines). Coefficients were centered and standardized to show the relative importance of each predictor despite the different scales on which the variables were measured. Black points indicate p < 0.1.

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