Figure 2

Structural equation model testing the relationship between biodiversity predictors and aboveground biomass (AGB) on the change of T. chinensis coverage. For abbreviations of predictors, see Fig. 1. Significant impacts are marked as solid lines, whereas non-significant impacts are marked as dotted lines. Positive impacts are marked in blue, whereas negative impacts are marked in red. Covariance relationships are marked as lines with a two-way arrow.