Research Article
Effect of Coal Mining on Springs in the Yushenfu Mining Area of China
Table 3
Index of the coal mining intensity level.
| | Mining height/m | Coal mining intensity level | | Productive area/mining area (≥60%) | Productive area/mining area (60/30%) | Productive area/mining area (30/10%) | Productive area/mining area (≤10%) |
| | ≥4.50 | Extremely | High | Medium | Low | | 1.30–4.50 | High | Medium | Medium | Low | | ≤1.30 | Medium | Low | Low | Low |
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