| Criteria | Rank | Code | Subclasses | Value |
| Geology | 1 | 10 | Mafic rock | - |
| 2 | 8 | Sedimentary rock | - | |
| 3 | 5 | Intermediate rock | - | |
| 4 | 11 | Acid rock | - | |
| Altitude | 1 | 10 | Valley | 146 - 200 m |
| 2 | 8 | Watershed | 200 - 250 m | |
| 3 | 5 | Middle slope | 250 - 300 m | |
| 4 | 11 | Summit/Platform | 300 - 393 m | |
| Slope | 1 | 10 | Low | 0% - 5% |
| 2 | 5 | Medium | 5% - 10% | |
| 3 | 3 | High | 10% - 15% | |
| 4 | 11 | Very high | >15% | |
| Land use | 1 | 10 | Degraded forest | - |
| 2 | 8 | Crop/fallow | - | |
| 3 | 5 | Savannah | - | |
| 4 | 3 | Habitat/bare soil | - | |
| 5 | 11 | Water | - |