Table 1 Grading rules of single factors for land suitability
Level | Rating score | ||||
|---|---|---|---|---|---|
Assessment factors | 10 | 8 | 6 | 4 | 2 |
Distance from road (m) | > 3000 | 3000–2000 | 2000–1000 | 1000–500 | < 500 |
Distance from residential area (m) | > 5000 | 5000–3000 | 3000–2000 | 2000–1000 | < 1000 |
Land slope (°) | 0–5 | 5–10 | 10–15 | 15–20 | > 20 |
Land usage status | Tidal flats and wasteland | Meadow | Cultivated land | Waters and residents not considered | |