This paper describes the implementation of process-based models reflecting relative groundwater nitrate vulnerability of the shallow alluvial Lower Savinja Valley (LSV) aquifer in Slovenia. A ...spatially explicit identification of the potentially vulnerable priority areas within groundwater bodies at risk from a chemical point of view is being required for cost-effective measures and monitoring planning. The shallow LSV unconfined aquifer system consists of high-permeable Holocene and middle- to low-permeable Pleistocene gravel and sand, with a maximum thickness of about 30 m, mainly covered by shallow eutric fluvisoils or variously deep eutric cambisoil. The hydrogeological parameters, e.g. the depth to the groundwater, hydrological role of the topographic slope, etc. usually used in different point count schemes are, in the case of the lowland aquifer and shallow groundwater, spatially very uniform with low variability. Furthermore, the parametric point count methods are generally not able to illustrate and analyze important physical processes, and validation of the results is difficult and expensive. Instead of a parametric point count scheme, we experimentally used the Arc-WofE extension for weights-of-evidence (WofE) modelling. All measurement locations with a concentration higher than the value of 20 mg NO
3
−
per litre of groundwater have been considered as training points (173), and the three process-based models generalized output layers of groundwater recharge (GROWA), nitrate leached from the soil profile (SWAT) and groundwater flow velocity (FEFLOW), served as evidential themes. The technique is based on the Bayesian idea of phenomena occurrences probability before (prior probability) and after consideration of any evidential themes (posterior probability), which were measured by positive and negative weights as an indication of the association between a phenomena and a prediction pattern. The response theme values describe the relative probability that a 100 × 100 m spatial unit will have a groundwater nitrate concentration higher than the training points’ limit values with regard to prior probability value. The lowest probability of groundwater nitrate occurrence is in the parts of the LSV aquifer, which are known as anoxic condition areas with very likely denitrification processes. The cross-validation of the dissolved oxygen and dissolved nitrate response theme confirmed the accuracy of the groundwater nitrate prediction. The WofE model results very clearly indicate regional groundwater nitrate distribution and enable spatial prediction of the probability for increased groundwater nitrate concentration in order to plan the groundwater nitrate reduction measures and optimize the programme for monitoring the effects of these measures.
Poplave sodijo medpogostejše naravne nesreče v Sloveniji terpo povzročeni škodi zaostajajo le za sušo in točo. V Savinjski statistični regiji so zgolj v obdobju 1992-2008povzročile za skoraj sto ...milijonov evrov neposredne škode oziroma okrog tretjino vse škode zaradipoplav v državi v tem obdobju. Poplave v Savinjski dolini leta 1990 z več kot pol milijarde evrov škode veljajo za najdražjo naravno nesrečo pri nas. Članek predstavlja predvsem poplavna območja v Spodnji Savinjski dolini,približno na območju med Sotesko in Celjem. Vzgodovinskih virih lahkopoplavam na tem območju sledimo od rimskih časov, poročila pa se gostijo, čim bliže smo sodobnosti. Analiza poplav leta 1954 v Celju in okolici velja za začetek celovitejšegapreučevanja naravnih nesreč pri nas.
Prispevekposkuša napodlagi vizitacijskih zapisnikov prvega goriškega nadškofa Karla Mihaela grofa Attemsa prikazati cerkvene razmere v Spodnjesavinjski dolini v drugi polovici 18. stoletja. Poleg ...njega so vizitacije opravljali še različni namestniki, npr. celjski mestni župnik in arhidiakon dr. Martin Sumpichler tergoriškipomožni škof Rudolf Jožef grof Edling. Ob tejpriložnosti so bile pregledane cerkvene razmere po župnijah, obiskane so bile številne grajske kapele in špitali, posvečena je bila vrsta cerkva, podeljene so bile različne stopnje kleriških redov (nižjih in višjih) tako škofijskim kot tudi redovnim kandidatom za duhovniškipoklic, urejalepa so se tudi različne administrativne zadeve.
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