Table 3.

Common factor variance and weight of soil quality evaluation indicators.

Indicators	0-10cm		10-20cm		20-30cm
	Communality	Weight	Communality	Weight	Communality	Weight
pH	0.999	0.101	0.969	0.098	0.934	0.102
EC	0.996	0.100	0.994	0.101	0.616	0.067
ENa	0.997	0.101	0.993	0.101	0.968	0.105
ESP	0.999	0.101	0.994	0.101	0.951	0.104
SAR	0.991	0.100	0.994	0.101	0.957	0.104
SOM	0.972	0.098	0.970	0.099	0.995	0.108
AN	0.998	0.101	0.997	0.101	0.912	0.099
AP	0.993	0.098	0.969	0.098	0.961	0.105
AK	0.994	0.100	0.992	0.101	0.967	0.105
CEC	0.994	0.100	0.971	0.099	0.925	0.101