Evaluation indices and classification standard
| System (code) . | Index (code) . | I . | II . | III . | IV . |
|---|---|---|---|---|---|
| Social economy (C1) | Natural population growth rate (%) (p1) | 2 | 6 | 12 | 24 |
| Population density (people/km²) (p2) | 20 | 60 | 100 | 200 | |
| GDP growth rate (%) (p3) | 8 | 6 | 4 | 2 | |
| Per capita GDP (CNY/people) (p4) | 10000 | 6000 | 3000 | 1500 | |
| Water resource (C2) | Per capita water resource amount (m³/people) (p5) | 7000 | 5000 | 3500 | 1750 |
| Per capita water supply (m³/people) (p6) | 4500 | 3500 | 2500 | 1250 | |
| Per capital daily domestic water (people/day) (p7) | 130 | 100 | 70 | 35 | |
| Water supply modulus (104 m³/km²) (p8) | 10 | 35 | 60 | 120 | |
| Utilization rate of water resource (%) (p9) | 50 | 62 | 75 | 150 | |
| Degree of water resource development (%) (p10) | 30 | 50 | 70 | 140 | |
| Diversion rate of surface water (%) (p11) | 30 | 50 | 70 | 140 | |
| Exploitation rate of underground water (%) (p12) | 20 | 35 | 50 | 100 | |
| Elasticity of water consumption (p13) | 0.1 | 0.3 | 0.5 | 1 | |
| Arable land rate (%) (p14) | 6.7 | 16.7 | 26.7 | 53.4 | |
| Arable land irrigation rate (%) (p15) | 20 | 40 | 60 | 120 | |
| Water conservation irrigation rate (%) (p16) | 80 | 50 | 20 | 10 | |
| Water conservation investment ratio (%) (p17) | 5 | 3.5 | 2 | 1 | |
| Ecological environment (C3) | Ecological water consumption rate (%) (p18) | 25 | 20 | 15 | 7.5 |
| Water and soil loss rate (%) (p19) | 10 | 20 | 30 | 60 | |
| Arable land salinization rate (%) (p20) | 10 | 20 | 30 | 60 | |
| Drought index (p21) | 10 | 25 | 40 | 80 |
| System (code) . | Index (code) . | I . | II . | III . | IV . |
|---|---|---|---|---|---|
| Social economy (C1) | Natural population growth rate (%) (p1) | 2 | 6 | 12 | 24 |
| Population density (people/km²) (p2) | 20 | 60 | 100 | 200 | |
| GDP growth rate (%) (p3) | 8 | 6 | 4 | 2 | |
| Per capita GDP (CNY/people) (p4) | 10000 | 6000 | 3000 | 1500 | |
| Water resource (C2) | Per capita water resource amount (m³/people) (p5) | 7000 | 5000 | 3500 | 1750 |
| Per capita water supply (m³/people) (p6) | 4500 | 3500 | 2500 | 1250 | |
| Per capital daily domestic water (people/day) (p7) | 130 | 100 | 70 | 35 | |
| Water supply modulus (104 m³/km²) (p8) | 10 | 35 | 60 | 120 | |
| Utilization rate of water resource (%) (p9) | 50 | 62 | 75 | 150 | |
| Degree of water resource development (%) (p10) | 30 | 50 | 70 | 140 | |
| Diversion rate of surface water (%) (p11) | 30 | 50 | 70 | 140 | |
| Exploitation rate of underground water (%) (p12) | 20 | 35 | 50 | 100 | |
| Elasticity of water consumption (p13) | 0.1 | 0.3 | 0.5 | 1 | |
| Arable land rate (%) (p14) | 6.7 | 16.7 | 26.7 | 53.4 | |
| Arable land irrigation rate (%) (p15) | 20 | 40 | 60 | 120 | |
| Water conservation irrigation rate (%) (p16) | 80 | 50 | 20 | 10 | |
| Water conservation investment ratio (%) (p17) | 5 | 3.5 | 2 | 1 | |
| Ecological environment (C3) | Ecological water consumption rate (%) (p18) | 25 | 20 | 15 | 7.5 |
| Water and soil loss rate (%) (p19) | 10 | 20 | 30 | 60 | |
| Arable land salinization rate (%) (p20) | 10 | 20 | 30 | 60 | |
| Drought index (p21) | 10 | 25 | 40 | 80 |