Table 3.

Correlations between environmental variables and rhizosphere prokaryotic composition (OTU level) assessed by the Monte Carlo permutation test (999 permutations) for canonical correspondence analysis.

Variables	RDA1	RDA2	r2	p
TN	0.18879	− 0.98202	0.3917	0.001***
TK	− 0.70846	− 0.70575	0.1755	0.036*
TP	− 0.47546	− 0.87974	0.4319	0.001***
AN	− 0.65334	− 0.75706	0.3718	0.001***
AK	− 0.31669	− 0.94853	0.0602	0.335
AP	− 0.86517	− 0.50148	0.2364	0.016*

*p < 0.05, **p < 0.01, ***p < 0.001.