In Slovenia, 43% of the territory is karst, including 42% of all protected water sources and 53% of all water-protection areas in the country. Assessment of karst areas and their spatial distribution is essential to better understanding the water in the lithosphere and for the assessment of the hydrogeochemical properties of the groundwater in a large part of Slovenia, as these resources are susceptible to degradation or pollution. For the purpose of development of regional karstification-intensity map a classification of stratigraphic units into karstification-level classes was performed, three parameters were analyzed in the outcrops of units with carbonate content using GIS and simple spatial statistics: the presences of sinks and cave entrances and the absence of a surficial drainage network. Where at least two of the three parameters showed a positive relation with karstification, the unit containing carbonate rocks was regarded as intensely karstified, while the rest were regarded as less karstified. The former areas cover 24% and the latter 21% of Slovenian territory.
COBISS.SI-ID: 2093909
In the search for new technologies that would ensure optimum yield and environmental sustainability, various irrigation, nitrogen and cropping system management strategies for the production of vegetables were assessed at a benchmark site in Slovenia (Sneberje) for the years 2006 and 2007. In the studied years four irrigation and fertilization treatments were applied. Nitrogen isotope labelled fertilizer (15N) was applied to trace the movement of the applied N fertiliser. The results confirm that fertigation and improved irrigation scheduling can be an effective way of minimizing nitrate leaching, and should be considered for vegetable production in or close to groundwater protection zones.
COBISS.SI-ID: 6820217
The article presents the application of isotope methods in the study of groundwater transport processes in the unsaturated zone of the Selniška Dobrava coarse gravel aquifer. The estimation of groundwater flow characteristics was based on experimental work in lysimeter. Based on long-time isotope investigations with the use of lumped parameter models, mean residence time and mean matrix flow velocity in the aquifer unsaturated zone were calculated.
COBISS.SI-ID: 1597269