Zoia PREFAC¹, Sorina DUMITRU², Viorel CHENDEȘ³, Igor SÎRODOEV^1,4 & George CRACU^1
1Ovidius University of Constanța, Faculty of Natural and Agricultural Sciences, 124 Mamaia, 900527, Constanța, Romania, e-mail: zoiaprefac@yahoo.co.uk; george.marius.cracu@univ-ovidius.ro
²National Research and Development Institute for Soil Science, Agrochemistry and Environment, 61 Mărăști, 71331, Bucharest, Romania, e-mail: sorina_dumitru@yahoo.com
³National Institute of Hydrology and Water Management, Șos. București-Ploiești 97, sector 1, 013686, Bucharest, Romania, e-mail: viorel.chendes@hidro.ro
⁴University of Bucharest, Interdisciplinary Center for Advanced Research of Territorial Dynamics, 4-12, Regina Elisabeta Blvd., 030018, Bucharest, Romania, e-mail: igor.sirodoev@univ-ovidius.ro

ASSESSMENT OF LANDSLIDE SUSCEPTIBILITY USING THE CERTAINTY FACTOR MODEL: RĂŞCUŢA CATCHMENT (CURVATURE SUBCARPATHIANS) CASE STUDY

Full text

Landslides are related to slope instability phenomena, frequently responsible for considerable losses of both goods and lives. The severity of the landslide problem worsens with increased settlement development and change in land use. The aim of this paper is to assess landslide susceptibility of a hilly area located in the Subcarpathian sector of the Râmna River, namely Rășcuța catchment, by specific geomorphological and geological data and procedures (field survey, large scale mapping). The landslide susceptibility map was developed using GIS techniques and statistical analysis of a set of lithological, morphological and land use information, using a bivariate model, namely certainty factor. The resulted map shows that the Strâmba catchment and the lower catchments of Rășcuța and Peletic Rivers are the most critical areas, with high and very high susceptibility; these areas summarize up to 46% out of the entire study area. On the opposite, the areas having the lowest susceptibility are located in the upper part of Rășcuța and Peletic catchments, covering about 16% of the study area.