Table 3. Classification and Grading Information Quantity Contribution Value of Environmental Impact Factors.

Category		Land use	Soil	Population	Per capita GDP	NDVI	Precipitation	Temperature	Altitude
Grading information value	1	0.4836	-3.0311	-1.5332	-0.3207	2.3199	-0.1313	-2.1985	0.2314
	2	0.0648	0.0740	-0.7570	-0.6257	2.7225	-0.0001	-2.2285	0.8245
	3	-0.4829	-0.6070	-0.0426	-0.0543	1.9551	0.6304	-1.1720	0.6315
	4	-1.4243	-0.3903	0.2306	-0.3058	1.6932	0.0426	-0.7668	0.4922
	5	-0.2569	-1.3436	0.3674	0.0964	1.6262	0.1263	-0.2197	0.2582
	6	-0.2284	-0.5536	0.5643	-0.3985	0.7466	0.0580	0.3936	0.3842
	7	-1.4876	-0.2954	1.2759	-0.2649	0.8443	0.0324	0.1748	0.4997
	8	0.1933	0.5193	1.5171	0.3276	0.5035	-0.1504	0.2598	0.3608
	9	-0.8011	0.0683	2.1170	0.2177	0.4480	0.4931	0.7184	0.1505
	10	-0.4973	-2.2488	2.4106	-0.4569	0.3278	0.1742	0.8609	-0.5692
	11	-1.1959	2.3453	1.7297	-0.1538	0.2264	-0.1125	0.6582	-0.9644
	12	3.0225	-1.0936	1.9941	1.2551	-0.0285	-0.4837	-0.0485	-1.1996
	13	0.9272	-0.5156	1.6439	0.4517	-0.3026	-0.2612	0.3209	-1.8827
	14	1.4870	0.0000	2.4580	1.1289	-1.1745	-0.5952	0.6620	-2.6316
	15	-1.0801		2.7685	1.3000	-2.3704	-2.0338	1.1716	-3.0381