Vulnérabilité du territoire à l’aléa glissement de terrain (carte de risque glissement de terrain du Bassin Versant Boussellam comme modèle)

Abstract

The present work focuses on the study of vulnerability to landslides hazard in Boussellam watershed, characterized by several sites that susceptible to these slope movements. The analysis of the vulnerability is interested in the location, dentification, characterization and prioritization of areas from which appears and diffuses consequences levels of landslides on exposed elements within the study area.The analysis of the landslides hazard data shows that the spatio-emporal occurrence of the study area instabilities is the product of the conjenction of several predisposing and triggering factors as terrain, tectonised structures, the contrasting climate, lithology and micro-seismic response, etc. To these atural causes, anthropogenic factors such as roads and houses contribute. The land use planning and geo-risks prevention politics should consider these areas insofar as they may disrupt the functioning and development of the territory. his work aimed to achieve a risk mapping, includes a GIS database well muscled