Within the framework of »Water Management Plan for the Danube River Basin and the Adriatic Sea 2015-2021 (NUV II)«, a study on the groundwater status of karst aquifers which are habitats of ...groundwater dependent ecosystems (GDEs) was carried out. Among them are the habitats of olms (Proteus anguinus), the endemic species of Dinaric karst. These habitats have been included in the Slovenian part of the Natura 2000 network, which aims at protecting and preserving rare, endangered and endemic animal and plant species and habitat types. However, the conservation status of some olm habitats is unfavourable given that the number of specimens is declining. For this purpose we prepared hydrogeological conceptual models, where recharge areas were delineated and quantitative as well as qualitative status of surface and ground-waters were studied. Knowing the basic characteristics of olms, their habitats and critical parameters that adversely affect their conservation status, we identified locations where critical parameters could exceed the threshold values in groundwater. We also identified the areas where and what are the trends of the observed parameters that exceed the natural background (As, Zn) or are undoubtedly of anthropogenic origin (PCB).
Skrb za pitno vodo Cerar, Sonja; Cosma, Claudia; Polajnar Horvat, Katarina ...
2014
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Safeguarding Drinking WaterLjubljana's water resources lie in the immediate vicinity of built-up urban areas or even below them. For decades, they have been safeguarded as water-protection areas, ...which are specified by implementing regulations. However, formal protection through regulations is insufficient if the goal is to manage these sources in a sustainable manner. One of the most important goals of sustainable management is maintaining suitable provision of fresh drinking water without using any technological procedures to
Ljubljansko polje aquifer is one of the biggest and most important aquifers in Slovenia. In general it is an unconfinedaquifer, but locally, on the SW part, layers with low hydraulic conductivity ...appear and on those areas perchedaquifers are formed. Based on lithological data from boreholes (emphasizing hydraulic conductivity of lithologicalunits) and use of geostatistical method Sequential Indicator Simulation (SIS) hydrogeological model of westernpart of Ljubljansko polje was made. In the model layers with hydraulic conductivity K < 10-6 m/s and area largerthan 0.07 km2 were defined as potential areas of perched aquifers. The majority of them are located on the foothillsof Šišenski and Grajski hrib.
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