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Loadings for the two first principal components (PC1 and PC2) of soil microbiological parameters determined in this study. Ellipses show parameters significantly (<0.7) contributing to PC1 or PC2. Abbreviations: RESP, respiration; SIR, substrate-induced respiration; DHG, dehydrogenase; XYL, xylanase; PROT, protease; PME, acidic phosphatase; SULF, sulfatase; NITRIF, nitrification; BACT, bacterial numbers; FUNG, fungal numbers.
