The mixed cork and holm woodland density under ideal
steady-state management includes all tree ages. Ideal
silvicultures of pure cork oak and holm oak woodland
under this scenario would result in average densities of 164
cork oaks and 159 holm oaks per hectare, for oaks aged
over 30 years. These ideal steady-state holm and cork oak
densities give an open woodland canopy cover of less than
65% for cork oak and 56% for holm oak. Considering that
65% of Haza’s UAL is covered by oaks and assuming the
current cork and holm oak distribution, the latter figure
would entail an average tree density of 160 oaks per mixed
holm and cork oak woodland hectare (QS), with an
average tree canopy cover of 60% under Haza’s ideal
simulated steady-state management. Under Haza’s actual
management, the average annualized cork yield14 is
19.3 kg ha1 of UAL (fresh cork weight). Under Haza’s
ideal cork oak woodland management in a steady state, the
yield would be 55.3 kg ha1 of UAL or almost three times
Haza’s current cork stripping (Table 1).
Under Haza’s actual management—considering the last
two sanitary fellings and maintenance prunings and their
timing—annualized firewood extraction is 17.4 kg ha1
from cork oak and 124 kg ha1 from holm oak. In a
steady state, Haza’s ideal silvicultural thinning, pruning,
regeneration and final felling could produce 254 kg of cork
oak and 269 kg of holm oak firewood per hectare of UAL
(Table 1).
La