Table 6.

Pearson’s correlation coefficients between various physicochemical variables and the relative abundances of main genera (> 1%) across all samples

	pH	AP	AK	NH4+-N	NO3−-N	ASi
Arenimonas	0.21	−0.33	− 0.21	− 0.03	0.57	0.50
Gemmatimonas	− 0.40	0.27	0.41	0.05	−0.66*	−0.62*
H16 (Proteobacteria)	0.3	0.01	−0.19	0.50	−0.38	−0.23
Haliangium	0.65*	−0.21	−0.67*	0.50	−0.45	− 0.27
Lactobacillus	0.13	−0.37	−0.01	0.09	0.96**	0.92**
Mesorhizobium	−0.01	−0.36	0.01	0.05	0.80**	0.84**
Nitrospira	0.48	−0.02	0.51	0.26	−0.69*	−0.61*
Phenylobacterium	−0.72**	0.42	0.72**	−0.07	0.04	0.03
RB41 (Acidobacteria)	0.04	0.10	0.11	0.06	NO3−-N	−0.29

Values in bold indicate significant correlations at **p < 0.01 and *p < 0.05