Table 2 The evaluation index system of UWSCR and weight coefficient of each indicator.
First-level indicator | Attribute | Second-level indicator | Formula | Ultimate weight | Type |
|---|---|---|---|---|---|
ENR (0.2212) | Sewage disposal capacity | Urban sewage disposal rate | Amount of sewage disposed/total sewage discharged | 0.0101 | + |
Storm drainage capacity | Density of drainage pipelines in built-up areas | Length of drainage pipelines in built-up areas/area of built-up areas | 0.1072 | + | |
Water supply capacity | Density of water supply pipelines in built-up areas | Length of water supply pipelines in built-up areas/area of built-up areas | 0.1039 | + | |
ECR (0.4851) | Climate pressure | Maximum 24-h precipitation | Maximum 24-h precipitation | 0.0029 | − |
Drought index | Accumulated number of days with moderate drought or above | 0.0029 | − | ||
Water conservation capacity | Greenery coverage in built-up areas | Area of greenery coverage in built-up areas/area of built-up areas | 0.0916 | + | |
Ecological water supply | Eco-environmental water use per unit built-up area | Amount of eco-environmental water use/area of built-up areas | 0.1997 | + | |
Climate endowment of water resources | Water yield Coefficient | Total water resources/precipitation | 0.0390 | + | |
Groundwater abundance | Proportion of groundwater resources | Groundwater resources/total water resources | 0.1490 | + | |
EVR (0.2937) | Financial input | Fixed assets investment in water-related municipal public facilities | Sum of fixed assets investments in water supply, drainage, landscaping and urban environment & sanitation | 0.2118 | + |
Human capital input | Practitioners in water conservancy, environment and public facilities management | Number of practitioners in water conservancy, environment and public facilities management | 0.0797 | + | |
Water saving and sewage discharge | 10,000 yuan Gross Domestic Product (GDP) sewage discharged | Amount of sewage discharged/GDP | 0.0009 | − | |
10,000 yuan GDP water used | Amount of water used/GDP | 0.0013 | − |
