Table 3.

Pearson correlation coefficients for potential influencing factors and O. hupensis density.

Affecting factors	Correlation coefficient
	All	Nanjing	Zhenjiang	Yangzhou
NDVI	0.082 *	0.135 *	0.161 **	−0.172 **
Dry	−0.038	−0.053	−0.109 *	0.065
LST	0.078 *	0.081	0.015	0.236 **
RESI	0.041	0.103	0.148 **	−0.253 **
DEM	0.069 *	−0.015	−0.037	−0.045
Slope	−0.009	−0.122 *	0.069	−0.079
DIS	−0.069 *	0.107	−0.144 **	0.045

* p < 0.05, ** p < 0.01.