Cartografía de Susceptibilidad a Movimientos en Masa con la aplicación del Método Estadístico Bivariado, caso de estudio microcuenca del río Monjas.

Abstract

Mass movements triggered by rainfall are a threat that has generated significant impacts on the population located throughout the Monjas River micro-watershed, which has an area of 177.06 km2. These events are concentrated in critical areas related to stream beds that have been filled and vertical slopes along the main channel of the Monjas River, in areas of high slopes and the presence of poorly consolidated rocks where areas of urban growth have been concentrated. In view of this problem, this curricular degree project (TICS) evaluates the levels of susceptibility to mass movements (MM) at a scale of 1: 20 000 in the Monjas River micro-watershed, with the generation of cartography using the Bivariate Statistical Method. This method integrates parameters such as: lithology, soil use, precipitation, slope, curvature, aspect and distance to the river flow and class factors such as Frequency Ratio (FR) according to Mersha and Meten (2020). This project is divided into three chapters. The first chapter presents the main objectives of the research, characteristics of the study area, and gathers information from both the theoretical framework and the geological framework of the study area. The second chapter contains the methodological framework for the construction of the susceptibility mapping by applying the Bivariate Statistical Method according to Mersha and Meten (2020), with the elaboration of seven thematic maps, and the calibration of the method with two MM inventory maps. The inventory maps were obtained from previous studies and field work in the research area. The third chapter, which concludes the study, discusses the results, conclusions and presents some recommendations to improve the living environment in the urban areas of the Monjas River micro-basin through the use of planning tools that can be obtained through the use of the results in the mapping of susceptibility to MM.