Driven Factors Analysis of China’s Irrigation Water Use Efficiency by Stepwise Regression and Principal Component Analysis

Table 8

Coefficients.

Model	Unstandardized coefficients		Standardized coefficients		Sig.
		Std. error
(Constant)	−0.003	0.147		−0.020	0.985
FAC_1	0.287	0.079	3.016	3.628	0.007
FAC_2	−0.144	0.049	−0.816	−2.927	0.019
FAC_3	−0.432	0.097	−1.033	−4.464	0.002
FIO	3.774	0.882	3.773	4.277	0.003
FAC_4	0.509	0.165	0.529	3.095	0.015