Note : NAG, N-acetyl-β-glucoasminidase enzyme; LAP, leucine aminopeptidase enzyme; BG, β-glucosidase; AP, phosphatase enzyme; SON, soil organic nitrogen; SOC, soil organic carbon; LN, soil labile nitrogen; RN, soil recalcitrant nitrogen; RIN; recalcitrant nitrogen index; SM, soil moisture; ST, soil temperature.
Table 2Statistical significance of the effects of land use types, seasons, depths and their interactions on soil enzyme activities based on Multiple ANOVA (NS = not significant; * p < 0.05;** p < 0.01; ***p < 0.001, NS, no significant; numbers are F-values).