Evaluation and Application of Environmental Value of Rural Land Resources Based on Improved GIS System

Table 6

Actual value and standard value of evaluation index.

Criterion layer	Subtarget layer	Index layer	Actual value	Target value	Standard value
Ecological sustainability B1	Maintain a good environment	Forest land coverage (%) C11	44.8	75	0.60
		Per capita public green space area (m^2) C12	10.57	20	0.53
		Terrace degree of slope land (%) C13	40.56	100	0.41
	Improve the quality of cultivated land	Farmland index above 25° (%) C14	2.07	100	0.98
		Land reclamation rate (%) C15	22.56	14.05	1.00
	Effective degradation control	Standard rate of industrial waste gas emission (%) C16	71	90	0.79
		Standard rate of industrial wastewater discharge (%) C17	42	90	0.79
		Comprehensive utilization rate of industrial solid waste (%) C18	62	80	0.78
Economic sustainability B2	High output efficiency	Total economic output value per unit area (10000/HA) C21	7.26	9.35	0.78
		Total agricultural output value per unit area (10000) C22	2.01	3.78	0.53
		Per capita disposable income of rural residents (yuan) C23	10955	14617	0.75
		Per capita disposable income of urban residents (yuan) C24	29326	39251	0.75
		Per capita GDP C25	21414	64520	0.33
		Proportion of primary industry GDP C26	25.26	15	0.59
		Proportion of GDP of tertiary industry C27	34.03	45	0.76
Social sustainability B3	Ensuring food security	Grain per capita (kg/person) C31	333	400	0.83
		Multiple cropping index of cultivated land (%) C32	169	200	0.85
		Effective irrigation rate (%) C33	45.7	50	0.91
	Good relationship between man and land	Per capita cultivated land area (MU) C34	1	1.35	0.74
		Population density (population/km^2) C35	339	148	0.44