| Variable | Evaluation grade | |||
| Low (0 - 0.25) | Moderate (0.26 - 0.5) | High (0.51 - 0.75) | Very high (0.76 - 1) | |
| Vegetable cover | Tree cover (forests) | Tree cover (forests) with intercalations of fruit crops and plantations | Tree cover (forests). herbaceous and shrub cover (thickets and secondary herbaceous communities) | No vegetation |