| Land-Cover Class | 1989 | 2002 | 2010 | 2020 | ||||
| PA | UA | PA | UA | PA | UA | PA | UA | |
| Forest | 98.8 | 97.8 | 90.9 | 88.8 | 93.8 | 88.3 | 91.8 | 94.1 |
| Cropland | 94.4 | 79.0 | 91.5 | 84.2 | 96.4 | 94.9 | 92.5 | 89.7 |
| Water | 100.0 | 99.1 | 98.6 | 100.0 | 97.6 | 100.0 | 100.0 | 96.8 |
| Shrubs | 99.6 | 99.7 | 86.8 | 77.4 | 83.9 | 84.8 | 80.6 | 79.7 |
| Bareland | 88.9 | 20.0 | 71.8 | 90.7 | 79.4 | 96.4 | 81.0 | 88.2 |
| Overall | 93.3 |
| 87.1 |
| 92.1 |
| 89.6 |
|
| Kappa | 0.881 |
| 0.835 |
| 0.890 |
| 0.864 |
|