due to harvesting activities in the residual forest and the effects
on soil are evaluated.
comes from 37 ha evergreen forest stand with protective cutting,
maintaining the floristic diversity and leaving an homogeneous cover
which permits the enrichment with nursery native tree species, in
order to permit the forest recovering. The evaluation has been made
after the first extractive period, where the more productive trees
forest stocks are analyzed, considering diversity, diametric distribution,
damage intensity by harvesting operations and trees quality. Posteriorly
a secondary cut option is simulated, and different alterations intensities
to the soil by skid roads, yard, and road construction are evaluated.
Finally the altered surface, removed soil volumes, altered surface-harvest
surface relation, apparent density variation and shear strength
harvest method is a good option for the evergreen forest and guarantee
its sustainability but a more flexibility in the homogeneous cover
and alternative strip plantations are recommended changing to clear
cutting in small areas and later enrichment. Some advises for diminishing
the soil alterations are included.
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