Table 1 Pearson correlation between β-diversity of the soil functional genes and microbial communities and environmental conditions.

Pearson correlation between β-diversity of the soil functional genes and microbial communities and environmental conditions. Temp = temperature during the growing season; PGS = precipitation during the growing season; DOC = dissolved organic carbon; OM = organic matter; TN = total nitrogen; NPP = net primary productivity. For soil pH, DOC, OM, NH4+-N, NO3--N, TN, and C/N, their coefficient of variation (CV) within each plot were calculated as soil heterogeneity for Pearson correlation analysis. p