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Table 2 Relationship between soil microbial community composition (or C-decomposition genes composition) and environmental attributes revealed by Mantel test

From: Nitrogen deposition experiment mimicked with NH4NO3 overestimates the effect on soil microbial community composition and functional potential in the Eurasian steppe

 

Bacterial community composition

Microbial functional composition

C-decomposition genes composition

R

P

r

P

r

P

Soil total N content

− 0.118

0.837

− 0.048

0.663

0.079

0.218

Soil total organic carbon content

0.146

0.123

0.159

0.102

0.168

0.086

Soil NH4+-N content

0.138

0.048

0.201

0.003

0.222

0.005

Soil NO3-N content

0.201

0.052

0.073

0.201

0.156

0.064

Soil pH

0.075

0.274

0.253

0.028

0.292

0.010

Aboveground plant biomass

− 0.058

0.743

− 0.058

0.755

− 0.053

0.742

Belowground plant biomass

0.131

0.122

0.240

0.010

0.255

0.008

  1. Bold r values indicate significant correlation