| Type | 2005 | 2010 | 2015 | |||
| area (hm2) | scale (%) | area (hm2) | scale (%) | area (hm2) | scale (%) | |
| Mining road | 20.87 | 1.16% | 30.12 | 1.67% | 27.92 | 1.55% |
| Mine Dumping Sites | 26.49 | 1.47% | 26.86 | 1.49% | 21.32 | 1.18% |
| Mineral piled field | 33.57 | 1.86% | 38.61 | 2.14% | 10.35 | 0.57% |
| Farmland | 255.04 | 14.14% | 231.86 | 12.85% | 225.76 | 12.51% |
| Grassland | 836.16 | 46.35% | 809.03 | 44.84% | 848.82 | 47.05% |
| Woodland | 355.48 | 19.7% | 364.82 | 20.22% | 359.18 | 19.91% |
| Tailing pond | 25.9 | 1.44% | 25.72 | 1.43% | 15.46 | 0.86% |
| Residential area | 75.76 | 4.2% | 86.15 | 4.77% | 104.55 | 5.80% |
| Water | 10.3 | 0.57% | 3.36 | 0.19% | 2.26 | 0.13% |
| Mining area | 164.63 | 9.13% | 187.67 | 10.4% | 188.39 | 10.44% |