The relief is undulating (150–430 m above sea level) and the landscape
is largely dominated (50%) by open to closed cork oak
(Quercus suber) and holm oak (Q. rotundifolia) forests, where the
understory may be herbaceous or shrubby depending primarily
on grazing pressure. Understory shrubs are also frequently
removed mechanically to reduce fire risk and for providing easy access
to livestock. Agricultural areas are also important (45%),
comprising mainly dry arable land and pastureland, with or without
sparse oaks trees, and olive orchards and vineyards.