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Table 1 Multivariate analysis of soil properties and microbial community α-diversity index (two-way ANOVA)

From: Soil microbial community variation with time and soil depth in Eurasian Steppe (Inner Mongolia, China)

Variables Month Depth Month* depth
f value p value f value p value f value p value
pH 3.184 0.018 5.841 0.000 2.186 0.038
SOM 1.598 0.184 4.608 0.013 3.651 0.001
NO3- 4.909 0.001 120.863 0.000 1.120 0.360
NH4+ 44.690 0.000 53.510 0.000 7.236 0.000
VWC 88.411 0.000 5.098 0.008 14.011 0.000
ST 141.026 0.000 21.398 0.000 25.361 0.000
Bacterial OTU richness 2.027 0.099 29.239 0.000 1.744 0.102
Bacterial ACE estimator 4.180 0.004 16.832 0.000 1.700 0.112
Bacterial Chao1 estimator 3.025 0.023 6.511 0.002 1.427 0.199
Bacterial Simpson index 1.239 0.302 3.590 0.032 1.232 0.293
Bacterial shannon index 0.831 0.509 67.406 0.000 1.162 0.333
Fungal OTU richness 1.157 0.337 72.667 0.000 0.603 0.773
Fungal ACE estimator 1.135 0.347 17.069 0.000 0.399 0.918
Fungal Chao1 estimator 1.274 0.288 29.850 0.000 0.398 0.918
Fungal Simpson index 0.258 0.904 22.016 0.000 1.173 0.327
Fungal Shannon index 5.841 0.000 2.564 0.084 3.257 0.003
  1. f value is the value of F test, p value significance level, p < 0.05 means significance, p < 0.01 means extremely significant