Table 3.

Partial Mantel analysis on the relationship between the relative abundance of dominant phyla and soil characteristics or plant properties

Phylum	Soil,a partial plant		Plant,b partial soil
	r	P	r	P
All phylotypes	0.634	0.001	0.330	0.001
Acidobacteria	0.578	0.001	0.196	0.023
Actinobacteria	0.536	0.001	0.191	0.045
Bacteroidetes	0.343	0.002	0.125	0.133
Chloroflexi	0.101	0.163	0.444	0.001
Firmicutes	0.481	0.001	0.281	0.001
Alphaproteobacteria	0.572	0.001	0.319	0.002
Betaproteobacteria	0.196	0.015	0.306	0.001
Deltaproteobacteria	0.555	0.001	0.105	0.219
Gammaproteobacteria	0.389	0.001	0.250	0.004
Gemmatimonadetes	0.424	0.001	0.309	0.002
Planctomycetes	0.505	0.001	0.159	0.046
Verrucomicrobia	0.551	0.001	−0.033	0.635

^aSelected soil variables: soil organic carbon, total nitrogen, available nitrogen, soil moisture, soil pH and soil temperature at the depth of 0–10 cm.

^bSelected plant variables: the Shannon index of tree and shrub.