Geomorfología y dinámica del Río Quemquemtreu en el sector de El Bolsón, provincia de Río Negro

Abstract

The analysis of the geomorphology and dynamics of the Quemquemtreu river was developed in the El Bolsón sector, Río Negro province. It is a mountain river that crosses several towns and empties into the Azul River and then reaches the waters of Lago Puelo. For its study, different techniques were used, among them, the morphometric analysis of the basin to which it belongs, the survey with Unmanned Aerial Vehicle of the section of the river under study for the generation of an orthomosaic and digital model of the detailed terrain, with which generated a geomorphological map. These products allowed to generate a flood model of the river from flow values according to different recurrence periods, in addition a Hydrogeomorphological Index was applied to evaluate the hydrogeomorphological quality of the river. The joint analysis of these techniques allowed us to know the dynamics of the Quemquemtreu river and its interaction with the surrounding community.