01496nam a2200181 a 450000100080000000500110000800800410001910000150006024501140007526001200018950000120030952008830032165000330120470000160123770000190125370000210127270000210129315742692025-07-25       2009    bl uuuu     u00u1 u    #d1 aSTOLLE, L.  aPlanning of the forest harvesting activities according to the environmental fragility.h[electronic resource]  aIn: CONGRESO FORESTAL MUNDIAL, 13., 2009, Buenos Aires. Desarrollo forestal: equilibrio vital. Argentina: FAOc2009  aResumo.  aThe environment fragility can be considered basically for two reasons: a) potential, because of their inherent factors, such as topography, soil and climate, or b) conditional to a specific use, where there is the influence of human activities. The aim of this study was to create a model of environmental fragility using dependency networks and fuzzy logic which will assist in decision making regarding the planning of the forest harvesting activities in a pine forest plantations in order to decrease the impact of these activities on the environment. The model used information from the soil (amount of clay on the surface and subsuriace layer, effective depth, A-horizon (A-depth), slope, precipitation intensity and forest cover (represented by the age of the plantation). These variables were evaluated for their influence in the processes of erosion and soil compaction.  aDesenvolvimento Sustentável1 aLINGNAU, C.1 aBOGNOLA, I. A.1 aRIBAS JUNIOR, U.1 aNEVES, K. V. das