Table 2 Evaluation indicators of the PWE systems.
Subsystem | Subsystem weight (w) | Dimension | Indicator [code] | Unit | Property | Entropy (ej) | Redundancy factor (gj) | Indicator weight (wj) |
|---|---|---|---|---|---|---|---|---|
Population [A] | 0.251 | Scale [A1] | Total population [A11] | people | + | 0.914 | 0.086 | 0.033 |
Density of population [A12] | people/km2 | + | 0.933 | 0.067 | 0.026 | |||
Structure [A2] | Urbanization rate [A21] | % | + | 0.838 | 0.162 | 0.063 | ||
Urban registered unemployment rate [A22] | % | + | 0.956 | 0.044 | 0.017 | |||
Quality [A3] | Number of students per 10,000 population [A31] | people | + | 0.874 | 0.126 | 0.049 | ||
Number of health technicians per 10,000 population [A32] | people | + | 0.839 | 0.161 | 0.063 | |||
Water resources [B] | 0.364 | Endowment [B1] | Annual precipitation [B11] | mm | + | 0.911 | 0.089 | 0.035 |
Total water resources [B12] | Billion m3 | + | 0.946 | 0.054 | 0.021 | |||
Production of water modulus [B13] | 10,000 m3/km2 | + | 0.898 | 0.102 | 0.040 | |||
Water resources per capita [B14] | m3 | − | 0.947 | 0.053 | 0.021 | |||
Stresses [B2] | Per capita water consumption [B21] | m3 | − | 0.911 | 0.089 | 0.035 | ||
Water consumption per 10,000 GDP [B22] | m3 | − | 0.957 | 0.043 | 0.017 | |||
Sewage Discharge [B23] | 10,000 m3 | − | 0.909 | 0.091 | 0.035 | |||
Area of green space [B24] | hectares | + | 0.898 | 0.102 | 0.040 | |||
Water-resources utilization rate [B25] | % | − | 0.937 | 0.063 | 0.024 | |||
Policy response [B3] | Total investment in environmental pollution control [B31] | 10,000 CNY | + | 0.801 | 0.199 | 0.078 | ||
Sewage treatment rate [B32] | % | + | 0.954 | 0.046 | 0.018 | |||
Economy [C] | 0.385 | Scale [C1] | GDP [C11] | 10,000 CNY | + | 0.893 | 0.107 | 0.042 |
Local general public budget revenues [C12] | 10,000 CNY | + | 0.890 | 0.110 | 0.043 | |||
GDP per capita [C13] | CNY | + | 0.900 | 0.100 | 0.039 | |||
Structure [C2] | Proportion of primary sector [C21] | % | − | 0.947 | 0.053 | 0.021 | ||
Proportion of secondary sector [C22] | % | + | 0.946 | 0.054 | 0.021 | |||
Proportion of tertiary sector [C23] | % | + | 0.951 | 0.049 | 0.019 | |||
Abilities [C3] | GDP growth rate [C31] | % | + | 0.941 | 0.059 | 0.023 | ||
Per capita disposable income of urban residents [C32] | CNY | + | 0.879 | 0.121 | 0.047 | |||
Total exports and imports [C33] | 10,000 USD | + | 0.764 | 0.236 | 0.092 | |||
Average wage of employed staff [C34] | CNY | + | 0.904 | 0.096 | 0.038 |
