Análisis de un modelo de susceptibilidad frente a los movimientos de ladera a través de la aplicación de los Sistemas de Información Geográfica (SIG)

Abstract

Abstract: The road from Loja to Malacatos has suffered various damages due to slope movements occurred over the years, this work analyzes this problem caused by along the 17 km that comprise the highway in an area of ​​4468.11 ha, emphasizing in those located 100 meters wide of the road through a satellite image of Google of the year 2020 and digitized in the ArcGIS (Information Systems) software Geographic) based on an inventory of slope movements, with a total of 49 landslides, mostly of the fall and flow type, from Cajanuma to Landangui, with the application of the bivariate statistical method proposed by Yin & Yan (1988), to generate a susceptibility model. To do this, the variables of slope, orientation, land use, the TWI and vegetation cover, as well as the inventory of slope movements as the basis of information for the crossing of factors to obtain the final susceptibility map, have been classified the areas as very low (9.23%), low (16.58%), moderate (31.3%), high (27.76%), and very high (15.40%). The results allowed us to determine three critical areas in the study area.