Model Building for Regional Ecological Risk Prediction and Evaluation of Prediction Accuracy

Table 6

Factor load matrix of principal components.

Influencing factors	Principal components
	F1	F2
The density of population (I1)	0.830	0.461
Pesticide usage of per hectare cultivated land (I2)	−0.986	0.055
Fertilizer usage of per hectare cultivated land (I3)	−0.853	0.356
Volume of wastewater discharged by every ten thousand yuan industrial output (I4)	0.209	−0.871
Volume of solid waste produced by every ten thousand yuan industrial output (I5)	0.925	−0.273
Domestic sewage discharged by per capita (I6)	0.714	0.536
Energy consumption of every ten thousand yuan (I7)	−0.913	−0.366
Water consumption of every ten thousand yuan industrial output (I8)	0.730	−0.513
The proportion of environmental investment in gross fixed assets formation (I9)	−0.591	0.512
The standard discharge rate of industrial wastewater (I10)	0.774	0.521
The comprehensive utilization of solid waste (I11)	−0.655	0.676
The repeating utilization rate of industrial water (I12)	0.522	0.785