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Ecological Processes

Table 3 Mantel test results to discern correlation between soil physicochemical variables (based on Euclidian distances) and the bacterial community composition (based on Bray–Curtis distances of OTUs)

From: Responses of soil microbial communities to freeze–thaw cycles in a Chinese temperate forest

Properties O horizon A horizon
r P r P
pH 0.53 0.017 0.25 0.165
SWC 0.43 0.038 0.36 0.043
SOC 0.27 0.064 0.57 0.009
TN 0.07 0.302 0.49 0.018
TP  0.00 0.485 0.43 0.049
SOC/TN 0.39 0.036 0.15 0.176
SOC/TP 0.14 0.229 0.38 0.06
TN/TP 0.05 0.367 0.28 0.11
DOC 0.44 0.016 0.37 0.031
TDN 0.25 0.091 0.62 0.008
DON 0.06 0.297 0.64 0.011
NH4+-N 0.58 0.004 0.62 0.004
NO3−-N − 0.20 0.757 0.34 0.075
TDP 0.46 0.027 0.77 0.001
AP − 0.28 0.944 − 0.12 0.776
DOC/TDN − 0.07 0.614 0.63 0.003
DOC/TDP 0.24 0.121 0.33 0.068
TDN/TDP 0.01 0.412 0.26 0.173
  1. OTU operational taxonomic unit
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