Il Metodo ESAS per la modellizzazione del rischio di desertificazione: applicazione in un'area della Sardegna nord-occidentale

GIS elaboration was applied to assess the sensivity to Desertification of an area of north western Sardinia. The ESAs model was used (Environmentally Sensitive Areas to desertification, developed by MEDALUS III EC – DG RES project. The model makes use of 15 indicators grouped into 4 classes: soil, vegetation, climate, land management. For each indicator independent layers are produced according to a pre-defined weights system and are then processed to create four synthetic indexes. Finally, the sensitivity index is produced as a geometric average. The implementation highlighted the high sensitivity of the concerned area.