This work was undertaken in a Pinus taeda stand. It was aimed to simulate and to map the influence of the impact of forestry activities on the potentialfragility of soil. The soil, slope, impact value and vegetal coverage were considered to generate the maps. The results showed that the areas with the highest potential fragility, have slopes greater than 75 % and texture ranging from sandy to loam. The leastfragile areas have predominantlyflat topography (up to 3 %) and clayey texture. When the impact of forestry activities was simulated, it was found that in most of the area (78 %) all forest activities can be performed without significantly degrading the environment. For some areas (11 %), with respect to the potentialfragility, the environment was considered less fragile due to the presence of vegetation cover.
Ecosystem Management Decision Support; forest soils; fuzzy logic
