Spatial Analysis of Industrial Green Development and Sustainable Cities in the Yellow River Basin

Table 1

IGD evaluation index system of cities in YRB.

Target layer	Criterion layer	Variable	Index
Industrial green development level	Green economic growth	Green growth potential	Economic density
			Per capita GDP
		Primary industry	Grain yield
			Fertilizer use
		Secondary industry	The gross output value of industries above designated scale
			Number of enterprises above designated scale
			Comprehensive utilization rate of solid waste
		Tertiary industry	Proportion of added value in GDP
			Number of employees in the tertiary industry
	Resource and environment carrying capacity	Abundance of resources	Total amount of water resources
		Environmental conditions	Emission of waste water per unit of GDP
			Emission of sulfur dioxide per unit of GDP
			Emission of soot per unit of GDP
	Government support	Government investment	Expenditure on energy conservation and environmental protection
		Infrastructure	Green coverage rate
			Per capita park area in built-up areas
		Environmental governance	Harmless treatment rate of domestic waste
			Sewage treatment rate