| Classes |
| |||
| Irrigated farming land | Dry farming land | Grassland | Urban land | |
| Irrigated farming land | 3 | 2 | 1 | 0.5 |
| Dry farming land | 2 | 3 | 1 | 0.5 |
| Grassland | 1 | 1 | 3 | 0.5 |
| Urban land | 0.5 | 0.5 | 0.5 | 3 |