| | Criterion layer | Indicator layer |
| | City size | Built-up area, specific population density, per capita construction land, economic density, expansion intensity of built-up area, greening of built-up area, population density, per capita road area, specific coverage rate of water area, etc. | | Natural environment quality | Water surface coverage rate, water network density, per capita water area, excellent air quality ratio, acid rain frequency, heat island intensity, water quality comprehensive pollution index, water nutrition status index, water quality compliance rate in water functional areas, water quality compliance rate in centralized drinking water sources, regional environmental noise, and traffic trunk noise | | Ecological quality factors | Ecological land use ratio, landscape diversity index, landscape fragmentation index, land degradation index, soil environmental quality comprehensive index, endangered species index, biological invasion risk, biological abundance index, and vegetation coverage index | | Pollution control and energy coordination capabilities | Safe disposal rate of hazardous waste, harmless treatment rate of garbage, comprehensive disposal utilization rate of industrial solid waste, clean energy utilization rate, water resources carrying capacity, water consumption per unit GDP, urban sewage treatment rate, and added value of energy consumption per unit above designated size |
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