Extended Data Fig. 5: Structural Equation Models demonstrating the drivers of root AMF richness and 33P recovery in grassland (a and b) and cropland (c and d) soils.
From: Agricultural management and pesticide use reduce the functioning of beneficial plant symbionts
Models a and c assume no direct relationship between AMF richness and 33P recovery. In b and d, a unidirectional relationship between AMF richness and 33P recovery was defined. Solid and dashed lines represent positive and negative associations, respectively. Curved lines indicate co-variances. The line width corresponds to the regression coefficient shown next to the respective line. Numbers next to the response variables represent the coefficients of variance. Significances are indicated by ***. **, * (p < 0.001, p < 0.01, p < 0.05) and non-significant relationships are coloured in grey. P-values of the Chi-square parameter for model a, b, c and d were 0.772, 0.772, 0.799 and 0.829 (p-values higher 0.05 indicate significant models).
