Abstract
Analysis of climatic effects on increased landslide occurrence in Bohemian Massif during 2010-2013. Causes of increased landslide occurrence in Bohemian Massif during years 2010-2013 are analyzed in the article.
Landslide occurrence was enhanced by increasing amount of precipitation which often exceeded long term monthly averages during the evaluated period. Increased number of landslides was detected during 2010/2011 winter months, but largest number of landslides occurred at the beginning of July 2013.
Increased landslide occurrences happened always when geological environment has already been saturated by long term, above average precipitations and short term, intense precipitations acted as the immediate triggering factor. It has been also supported by results of thirty years long geotechnical and hydrogeological monitoring of the landslide near Třebenice town, Litoměřice region.
In many cases inconvenient human interventions also contributed signifi cantly to the landslide occurrences. Results of the analysis confi rmed experience, that majority of landslides on natural slopes develops on sites which have already experienced slope movements in the past and that high landslide occurrences are related to long term, above average precipitations in the Bohemian Massif.