The influence of the climatic factor on the evolution of landslides in the Ialomita Subcarpathians post year 2000. Case studies

摘要

The subcarpathians between Dambovita and Ialomita valleys are characterized by strong morpho-dynamics set by the simultaneous existence of geo-mophological factors having a highly morpho-dynamic potential. If a series of factors do not change or rather change slightly through time (e.g. geological conditions, morphometry land usage), the climatic factor is characterized by a high degree of variability both from the point of view of time intensity distribution. Be it that there are high amount of rainfall within a 24-hour period, or that rainfall occurs at the same time as snow melting on a over-humid soil it often triggers landslides. Between 2000 and 2010 numerous landslides occurred and many others were reactivated in the Subcarpathian area between Dambovita and Ialomita valleys. The analysis of the several landslides (at Gheboieni (Margineanca) - 28 - 31 July 2004, Pucioasa - 26 September 2005, Nicolaesti (Vulcana Bai) 16 - 17 March 2006 and Miclosani 19 - 23 February 2010) gives us information regarding the direct link between rainfall and landslides. Correlation between the time when rainfall and landslides occur can establish the importance of the role precipitations have in triggering landslides.