Table 2.

Correlation between soil microbial functional diversity indices and soil physical and chemical factors. Statistical significance is indicated as *, **, and *** at the level of 0.05, 0.01, and 0.001, respectively.

	TN	AK	AP	AN	SOC	MBC	pH	WC	C/N
AWCD	−0.751 **	−0.058	−0.858 ***	−0.690 **	0.732 **	0.865 ***	0.684 **	−0.579 *	0.738 **
Shannon index	−0.595 **	0.196	−0.729 ***	−0.653 **	0.521 *	0.748 ***	0.654 **	−0.414	0.529 *
Simpson index	−0.668 *	0.083	−0.789 **	−0.678 **	0.615 *	0.806 **	0.670 **	−0.463	0.622 *
McIntosh index	−0.692 **	0.054	−0.812 ***	−0.662 **	0.650 **	0.818 ***	0.657 **	−0.550 *	0.658 **