Evaluation Grade

Low

Moderate

High

Very High

Influence of Vegetation

Over 70 percent.

Well developed tree cover (forest)

Between 70 - 40 percent. Tree cover relatively developed

Between 40 - 20 percent. Tree cover interbedded with poorly developed herbaceous cover constants,

crops and orchards

Less than 20 percent. Denuded areas with sparse grass and shrub cover (shrubs and secondary herbaceous communities) and crops and orchards