Figure 5:

Results of the structural equation model analysing links between topography, vegetation, soil, and microclimate on decomposition.Individual relationships were tested using multiple linear regression. Purple arrows indicate negative, orange arrows positive, and grey dotted arrows non-significant links. Thicker lines correspond to stronger identified links (larger effect sizes). R2values represent model fit for individual sub-models. Relationships between vegetation, soil and microclimate predictors and decomposition responses were tested for each decomposition response variable individually, indicated by the dashed boxes, but GDD0only significantly predicted variation in stabilisation factors (see also Figure 4). See Table S3 for full model output and Table S4 for comparison with individual pairwise relationships of decomposition responses with their explanatory variables.