| Image classification (1986) | ||||
| Image classification (2016) | Water | Rice fields | Settlement | Bare soil |
| Water | 58.858 | 4.459 | 4.668 | 3.53 |
| Rice fields | 40.804 | 94.963 | 32.199 | 39.938 |
| Settlement | 0.154 | 0.192 | 7.724 | 6.361 |
| Bare soil | 0.185 | 0.386 | 55.409 | 50.171 |