Geomorphological considerations on the landslides in the Bahluieţ catchment

Abstract

This paper focuses on the study of spatial distribution of the landslides and associated triggering factors within the Bahluieţ catchment. This area of 55,824 ha is subjected to land degradation, landslides being the most characteristic geomorphologic process, playing an essential role in the morphogenesis of the landforms and representing a major threat to agriculture land and human settlements. In order to analyze the landslides distribution, the field surveys, the topographic maps and the ortophotoplans of the year 2006 have been used. Landslides are stretching on 19,550 ha, representing 35% of the studied area. Presently, most landslides have a high degree of stability, due to the drier period of time since 1982, while the active landslides have a reduced incidence.
The highest frequency of landslides occurs on steeper slopes, mainly in the shape of cuesta fronts, usually northern and western facing.