Objective:

Analyze the susceptibility of the slopes to the occurrence of mass movements, implementing the MoraVahrson methodology adapted for the district of Chemesquemena located within the Kankuamo indigenous reservation, department of Cesar (Colombia).

Methodology:

Initially a review of the state of the art was carried out in academic and scientific databases. Subsequently, field phases were carried out to take samples of rock, soil and cartographic survey at a scale of 1:100.000, allowing to know and identify the geological, geomorphological aspects and general characteristics. With the ArcGIS software, the images were analyzed using digital elevation models (3D effect), in the processing, maps at a scale of 1:100.000 were obtained.

Results:

The areas with the greatest susceptibility are located to the NW of the district of Chemesquemena (Colombia), representing 70 % of the total areas due to high slopes, high rainfall, lithology, soil type, vegetation cover, permanent crops and subunits. geomorphological such as denuded mountain ranges and residual hills; and 30 % low to very low susceptibilities.

Conclusions:

The conditioning factors that generate the greatest influence on susceptibility correspond to the lithology, high slopes characteristic of the land, permanent crops and grass as the main cover. The lithological units were classified mainly as intrusive igneous rocks with an advanced state of alteration, generating weakening of the materials. Crops require periodic irrigation systems, resulting in a constant supply of water to soils and slopes (oversaturation), and changes in mechanical properties; In addition, the grass does not contribute to favoring the stability of the soil.

Financing:

Fundación Universitaria del Área Andina.