Table 2 Potential variables explaining variances of heterotrophic soil respiration rate or that of relative decomposition capacity in the linear mixed effect model using sites as the random effect factor across the four studied forests. R_h is heterotrophic soil respiration, TOC total organic carbon, ROC readily-oxidizable organic carbon, DOC dissolved organic carbon, MBC microbial biomass carbon, PLFAs phospholipid fatty acids, G+ Gram-positive bacteria and G- Gram-negative bacteria. Relative decomposition capacity was defined as the ratio of the heterotrophic respiration rate over total organic carbon (R_h/TOC) and as the ratio of the heterotrophic respiration rate over readily-oxidizable organic carbon (R_h/ROC)

From: Soil microbial community composition does not predominantly determine the variance of heterotrophic soil respiration across four subtropical forests