Possibilities for recovery of the Vonarsko lake with ecoremediations

V diplomskem delu obravnavamo možnosti oživitve Vonarskega jezera, ki je bilo v preteklosti izpraznjeno zaradi procesa evtrofikacije, s pomočjo ekoremediacijskih metod. Danes izpraznjeno jezero pomembno prispeva k zadrževanju visokih voda, poleg tega pa je pomemben element naravnega okolja, saj ima izreden ekološki pomen. Predstavljene so naravno- in družbenogeografske značilnosti porečja reke Sotle, znotraj katerega se nahaja Vonarsko jezero. Podrobneje je opisano obstoječe okoljsko stanje jezera ter vplivi človekovega delovanja na jezero. Pri tem smo izpostavili vire točkovnega in razpršenega onesnaževanje kot tudi hidrološke in morfološke obremenitve. Osrednji del diplomskega dela predstavlja predstavitev ERM ukrepov, s katerimi bi izboljšali kakovost okolja (vode in sedimentov) in tako omogočili ponovno oživitev Vonarskega jezera. Ugotovili smo, da lahko na sonaraven način z uporabo ERM metod poskrbimo za čiščenje vode in onesnaženih sedimentov ter sočasno poskrbimo za ohranjanje naravnih vrednot, ki dajejo okolju poseben pečat.The graduation thesis explores possibilities for revitalising Lake Vonarje which was emptied in the past due to the euthrophication process and using the ecoremediation method. Today, the emptied lake contributes significantly to retaining high water and also represents a relevant ecological factor for the natural environment. The thesis presents the natural and social-geographical characteristics of the Sotla basin in which Lake Vonarje is located. The lake’s existing environmental state and the effects of human activity are described in detail with sources of spot and dispersed pollution as well as hydrological and morphological burdens highlighted. The central portion of the graduation thesis presents ERM measures for improving the quality of the environment (water and sediments) to enable the revitalisation of Lake Vonarje. It was established that the use of the ERM method in a nature-friendly manner will ensure the cleaning of the water and polluted sediments and at the same time, preserve the natural assets which give the surroundings that special touch