Climate in Slovenia has changed notably over the past century. As regional temperatures have risen, a more vigorous hydrologic cycle ensued; in many places the intensity of rainstorms has become ...greater. The seasonal distributions of rainfall has changed with significant implications for patterns of vegetation growth and hence for soil erosion. Due to predicted climate change increased frequency of extreme precipitation events can be expected during the time when soil is without plant cover and exposed to the erosive forces. In addition to ample daily and several day precipitation events, water erosion occurs with heavy rainfalls that last from couple of minutes to several hours. Overview of rainfall intensity index and rainfall erosivity, calculated with adapted USLE (universal soil loss equation) method, is given for three meteorological stations in Slovenia for period 1991-2006. Analyzed locations are situated on different climate areas with noticeable different rainfall regime at western (Bilje at Nova Gorica, Rateče) and eastern (Murska Sobota) part of Slovenia.
Meritve dokazujejo, da erozija na kmetijskih zemljiščih nikakor ni zanemarljiva in je najintenzivnejša na njivskih površinah. Podnebje se je v Sloveniji že spremenilo, temperature zraka in tal naraščajo, spreminja pa se tudi vodni cikel. Opažamo sezonsko preporazdelitev padavin, daljše in intenzivnejše poletne suše, pa tudi naraščanje intenzivnosti nalivov, kar vse močno vpliva na erozijske procese. Zaradi predvidenih klimatskih sprememb lahko pričakujemo povečano pogostost in intenziteto ekstremnih padavin v času, ko so tla brez rastlinskega pokrova in izpostavljena erozivnim silam. Poleg obilnih dnevnih in večdnevnih padavin povzročajo vodno erozijo tudi nalivi, ki trajajo od nekaj minut do nekaj ur. Za tri meteorološke postaje (Bilje pri Novi Gorici, Murska Sobota in Rateče), ki so na klimatsko različnih območjih Slovenije, je za obdobje 1991-2006 podan pregled ekstremnih količin padavin v različnih časovnih intervalih, indeks intenzitete dnevnih padavin ter erozivnost padavin, izračunana po prirejeni metodi univerzalne enačbe izgube tal (USLE).
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