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Table 2 Significance of relationships between enzyme activities and soil characteristics as well as root decomposition rates (Dong et al. 2020) across 36 different forms of N treatments plots

From: Effects of different forms of nitrogen addition on microbial extracellular enzyme activity in temperate grassland soil

  BG CBH POX PER NAG AP
Soil C (mg C g−1 soil) ns ns ns ns ns ns
Soil C:N ns ns ns ns ns ns
Soil P (μg P g−1 soil) ns ns ns ns ns ns
Soil DOC (μg C g−1 soil) 0.51 (+)** 0.60 (+)** ns 0.49 (+)** ns ns
Soil MBC (μg C g−1 soil) 0.56 (+)*** 0.63 (+)*** ns 0.41 (+)* ns ns
Microbial biomass C:N ns ns ns ns ns ns
pH ns ns ns ns 0.43 (−)*** 0.58 (−)***
Decomposition rate (year−1) ns ns ns ns ns ns
  1. ns, not significant
  2. *P < 0.05, **P < 0.01, ***P < 0.001