study proposes easy application guidelines for evaluating site sensitivity
to soil degrading processes by logging; includes soil compactation
and puddling, soil displacement, surface soil erosion and landslide
hazards. Single comprehensible parameters and common to forest inventories
were used. The methodology consists in a ranking system that allow
the soil hazard classification in five significance levels to each
and one global degrading processes: very low, low, moderate, high
and very high. Data field standardization into a value ordinal scale,
between 0 to 10, are requiered. Then, through a logarithmic function
and the use of nomograms, the significance hazard levels are computed.
Each hazard level is associated to global site conditions and best
management forest practices. This methodology has been applied using
both direct field data as from Geographic Information System databases.
In spite of the fact that over 50000 hectares have been ranqued
by this way, its considers that more validation is necessary for
a greater site amplitude.
words: site sensitvity, environmental assessment, forest harvesting.