Fig. 4

Correlation heatmap of soil biochemical properties and read numbers at the phylum (a) and genus (b) level for fungal. \( {\mathrm{NH}}_4^{+} \)-N: ammonium nitrogen; \( {\mathrm{NO}}_3^{-} \)-N: nitrate nitrogen; MBC: microbial biomass carbon; BG: 1, 4-β-glucosidase; AP: acid phosphatase; NAG: β-N-acetyl-glucosaminidase. The color intensity in each panel indicates the relative correlation between soil property and read numbers of each group. * P ≤ 0.05, ** P ≤ 0.01, *** P ≤ 0.001