Fig. 2: Major predictors of soil metabolic efficiency along the altitude gradient.
From: Soil microbial trait-based strategies drive metabolic efficiency along an altitude gradient
a The percentage increases in the mean squared error (%IncMSE) based on Random Forest analysis; b relationships of metabolic quotient (qCO2) and carbon use efficiency (CUE) with selected biotic and abiotic attributes. SOC, soil organic C; TP, total P; Avai_P, available P; B_PCoA1, B_ PCoA2, F_PCoA1 and F_PCoA2 were the two dimensional PCoA ordination of taxonomic composition for bacterial and fungal community, respectively. AG, α-1,4-glucosidase activities; BG, β-1,4-glucosidase; CBH, cellobiohydrolase; XYL xylanase; NAG, N-acetyl-β-D-glucosaminidase; LAP, leucine aminopeptidase; AP, acid phosphatase. Enzyme/MBC represents specific enzyme activities calculated by normalizing activities to units/mg MBC. *P < 0.05; **P < 0.01.
