Abstract
Rainfall plays an important role in the landslide triggering processes. Analyses of landslide occurrence in the area of Slovenia have shown that areas where intensive rainstorms occure (maximal daily rainfall for the 100 years period), and where the geological settings are favourable, abundance of landslide can be expected. This clearly indicates the spatial and temporal dependence of landslide occurrence upon the intensive rainfall. Regarding the landslide occurrence, the intensity of maximal daily and average annual rainfall for the the 30 years period were analysed. Results have shown that daily rainfall intensity, which significantly influences the triggering of landslides, ranges from 100 to 150 mm, most probably above 130 mm. Despite the vague influence, if any at ali, of the average annual rainfall, the threshold above which significant number of landslides occurs is 1000 mm.
Highlights
Padavine igrajo eno klju~nih vlog pri spro‘anju plazov
Rainfall plays an important role in the landslide triggering processes
Analyses of landslide occurrence in the area of Slovenia have shown that areas where intensive rainstorms occure, and where the geological settings are favourable, abundance of landslide can be expected
Summary
Padavine igrajo eno klju~nih vlog pri spro‘anju plazov. Pri analizi pojavljanja plazov na obmo~ju Slovenije se je pokazalo, da so intenzivne kratkotrajne padavine (maksimalne dnevne padavine za obdobje 100-ih let) v kombinaciji z geolo{ko podlago pomemben dejavnik, ki vpliva na prostorsko in s tem tudi na ~asovno pojavljanje plazov. Intenzivne padavine kot spro‘ilni dejavnik pri pojavljanju plazov v Sloveniji zovih in vklju~itev v bazo GIS_UJME” so bili za obmo~je Slovenije iz razli~nih virov (MORS, DRSC, MOP, GeoZS in IRGO) zbrani obstoje~i podatki o plazovih. Trias - ladinij) skrilavi glinovec, meljevec, plo{~asti apnenec z ro‘enci, lapor, droba, pe{~enjak, konglomeratna bre~a, tuf V prispevku je bila analizirana frekvenca prostorskega pojavljanja plazov na enoto povr{ine v odvisnosti od geolo{kih (litolo{kih) lastnosti in koli~inami padavin, povpre~nih letnih in maksimalnih 24-urnih.
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