Table 2 Spearman correlations analysis between the contents of soil chemical properties and the relative abundant of the most abundant bacterial and fungal phyla.

From: Influence of highway construction of alpine grassland area in Gannan on soil properties and microbiota

Soil chemical properties

Bacterial community compositions

Fungal community compositions

Proteobacteria

Acidobacteria

Bacteroidetes

Ascomycota

Basidiomycota

Mortierellomycota

June

September

June

September

June

September

June

September

June

September

June

September

Microbial biomass carbon

-0.038

-0.489**

0.015

0.424*

-0.111

0.049

0.009

-0.276

-0.049

0.15

0.115

-0.027

Total nitrogen

-0.346

-0.770**

0.332

0.583**

0.312

-0.314

-0.585**

-0.658**

0.657**

0.428*

0.385*

0.267

Total phosphorus

-0.146

-0.525**

0.345

0.569**

-0.396*

-0.409*

0.084

-0.615**

-0.283

0.399*

-0.03

0.101

Ammonium nitrogen

-0.292

-0.468**

0356*

0.408*

0.008

-0.235

-0.399*

-0.251

0.215

0.220

0.298

0.287

Nitrate nitrogen

-0.339

-0.483**

0.266

0.354*

0.014

-0.051

-0.008

-0.124

0.031

0.094

0.213

-0.001

Rapidly available phosphorus

-0.213

-0.145

0.318

0.354*

-0.11

0.373*

-0.301

-0.061

0.417*

0.048

0.188

-0.080

Rapidly available potassium

-0.24

-0.293

0.383*

0.139

-0.016

-0.440*

-0.387*

-0.421*

0.450**

0.268

0.231

0.434*

pH value

0.423*

0.741**

-0.423*

-0.057**

-0.335

0.208

0.504**

0.554**

-0.565**

-0.396*

-0.364*

-0.284

Urease activity

-0.151

-0.710**

-0.103

0.517**

0.400*

-0.253

-0.486**

-0.558**

0.33

0.467**

0.275

0.178

Sucrase activity;

-0.234

-0.474**

0.255

0.169

0.360*

-0.458**

-0.511**

-0.488**

0.566**

0.507**

0.405*

0.183

Catalase activity

-0.042

-0.502**

0.044

0.593**

-0.053

-0.286

0.232

-0.356*

-0.457**

0.114

-0.073

0.118