Appendix S1 for Drivers of nematode diversity in forest soils across climatic zones

This document includes: Table S1. Composition of dominant tree species for forest sites and number of woody plant species (diameter at breast height greater > 1 cm) in temperate, warm-temperate, and tropical climatic zones. Table S2. Results (F-values and P-values) of one-way ANOVAs or t-tests (t-values and P-values) testing the effects of climatic zone on climate (MAP and MAT) and plant (alpha-, beta- and gamma-diversity of woody plants and GPP) properties. Table S3. Results of linear mixed models testing the effects of climatic zone on soil pH, soil organic carbon, total soil nitrogen, total soil phosphorus (with forest site as random effect, n = 13; and with plot as random effect, n = 39) and nematode alpha-diversity and total nematode biomass (with forest site as random effect, n = 13; and with plot as random effect, n = 39), nematode beta- and gamma-diversity (with forest site as random effect, n = 13). Table S4. The abundance (individuals/100 g dry soil) of nematode genera/families for tropical, warm-temperate, and temperate forest sites. Table S5. Results of linear mixed models testing the effects of climatic zone on abundance, relative abundance (with forest site as random effect, n = 13; and with plot as random effect, n = 39) and the biomass proportion of different nematode trophic groups (with forest site as random effect, n = 13). 2 Table S6. The mean monthly temperature (℃) for the 39 sampling plots in temperate, warm-temperate, and tropical climatic zones. Table S7. The mean monthly precipitation (mm) for the 39 sampling plots in temperate, warm-temperate, and tropical climatic zones