Table 4.
The evaluation index of suitability of construction land.
| Criterion | Constant weights | Variable weights | Evaluation index | Suitability (5) | Moderate Suitability (3) | Unsuitability (1) | Constant weights | Variable weights |
|---|---|---|---|---|---|---|---|---|
| Natural geography | 0.113 | 0.115 | Geomorphology | Plain | Hills | Mountain | 0.113 | 0.115 |
| Hydrogeology | 0.263 | 0.264 | Type of groundwater | Pore water | Interstitial water | Karst water | 0.117 | 0.119 |
| Saline water (TDS) | <1 g | 1–10 g | >10 g | 0.146 | 0.145 | |||
| Engineering Geology | 0.488 | 0.484 | Fracture | No development | General development | Development | 0.177 | 0.173 |
| Ground subsidence | Area of no ground subsidence | Area of soft soil distribution | Area of ground subsidence prone | 0.163 | 0.161 | |||
| Foundation soil | Rocks | Gravel and sand | Mucky soil and cohesive soil | 0.148 | 0.150 | |||
| Environmental geology | 0.136 | 0.137 | Geological hazard probability | Low-probable geological hazard | Mid-probable geological hazard | High-probable geological hazard | 0.136 | 0.137 |