中国农业化肥施用技术效率演变特征及影响因素

中国农业化肥施用技术效率演变特征及影响因素

王萍萍, 韩一军, 张益

Characteristics of change and influencing factors of the technical efficiency of chemical fertilizer use for agricultural production in China

WANG Pingping, HAN Yijun, ZHANG Yi

表5 3种空间回归模型

Table 5 Three spatial regression models

变量	SAR	SEM	SDM
ln(Income)	-0.253***	-0.247***	-0.262***
	(0.030)	(0.030)	(0.030)
ln(Trlabor)	-0.387***	-0.369***	-0.374***
	(0.027)	(0.025)	(0.030)
ln(Pdisa)	0.002	0.003	0.002
	(0.007)	(0.007)	(0.007)
ln(Irrig)	0.314***	0.317***	0.277***
	(0.031)	(0.030)	(0.032)
ln(Citizen)	0.024***	0.022***	0.003
	(0.008)	(0.008)	(0.009)
ln(Struc)	0.106**	0.103**	0.088*
	(0.048)	(0.046)	(0.053)
ln(Rain)	-0.016	-0.017	-0.015
	(0.014)	(0.014)	(0.015)
ln(Temp)	0.054*	0.047	0.046
	(0.030)	(0.030)	(0.031)
w×ln(Income)			0.113**
			(0.056)
w×ln(Trlabor)			-0.078
			(0.061)
w×ln(Pdisa)			-0.002
			(0.013)
w×ln(Irrig)			0.088
			(0.069)
w×ln(Citizen)			-0.078***
			(0.020)
w×ln(Struc)			0.133
			(0.110)
w×ln(Rain)			-0.006
			(0.023)
w×ln(Temp)			-0.013
			(0.057)
rho	-0.152***		-0.146**
	(0.051)		(0.057)
lambda		-0.164***
		(0.057)
log likelihood	735.040	734.855	748.127
R²	0.157	0.157	0.186