Table 4.

Monte Carlo permutation test of relationship between environmental attributes and 16S rRNA and nifH gene high-throughput sequencing data.

	16S rRNA		nifH
	R2	P	R2	P
TP	0.341	0.037	0.534	0.004
TN	0.278	0.104	0.293	0.073
TC	0.377	0.024	0.509	0.012
AK	0.360	0.024	0.404	0.023
C/N	0.320	0.045	0.559	0.004
N/P	0.193	0.196	0.403	0.014

Significant differences (P < 0.05) are indicated in italics.