Landslide hazard zoning at regional level – Vâlcea County case study
Journal Title: Advances in Environmental Sciences - International Journal of the Bioflux Society - Year 2011, Vol 3, Issue 2
Abstract
In recent years the severity of the extreme meteorological phenomena significantly increased, i.e. heavy rains which led to historical floods on the most part of the hydrographical basins of Romania, mostly during 2005 and 2010. These abnormal meteorological phenomena reactivated a great number of landslides. Therefore, risk managers, in order to urge the landslide inventory at the whole country level, launched hazard maps in terms of Law no 575/2001 regarding the “Plan of the national territory development, the Fifth section – Areas of natural hazards”. This means risk maps of Romania for areas prone to natural hazards (floods, landslides and earthquakes), as well as the exact geographical andadministrative localization of these areas, including the indication of the risk level of producing the specific hazards. The present paper presents the methodology of hazard zoning at the local and regional level, including the parameters used to draw down the thematic maps for inventory and representation of the active landslide for the whole territory. As a case study area, Vâlcea County was chosen for the large number of damages due to the landslide effects. Of them, the Ocnele Mari case is noteworthy as a natural reservation of diapire salts massifs, affected by collapse due to salt dissolution by runoff water and overexploitation by water injection.
Authors and Affiliations
Adrian Mesescu, Septimius Mara
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