Abstract
Monitoring and detection of seawater intrusion in coastal aquifers in Croatia are one of the water management measures that attempt to notice an increase in salinity in time. Bokanjac-Poličnik is the coastal aquifer in Croatia that is at the risk of seawater intrusion. In that area, analysis of hydro-chemical indicators will be conducted due to the occasional seawater intrusion that occurs on wells that are included in the water supply system for the City of Zadar and surrounding villages. Due to the increased exploitation during the tourism season in summer and climate changes, salinization process is more intense. The presented results indicate that two of four wells on the case study area are under the influence of salt marine water.
Highlights
Groundwater is a priceless resource for high-quality freshwater in Croatia and all around the world
Bokanjac-Policnik is the coastal karstic aquifer located in the area called Ravni kotari, which is part of the northern Dalmatia in Croatia (Figure 1)
Water facilities that are included in the water supply system for the City of Zadar and surrounded areas are Bokanjac, Golubnika, Boljkovac, Jezerce, and Oko
Summary
Groundwater is a priceless resource for high-quality freshwater in Croatia and all around the world. In the coastal parts of the aquifer we can expect karstified carbonate rocks up to about 150 m deep, which, if the geological structures are without lower permeable deposits or rocks and opened to the sea, allows direct contact of salt sea and freshwater of coastal aquifers, forming a labile dynamic balance of salt and fresh water in the aquifer This balance of salt and fresh water can be disturbed during extremely dry periods, by reduced aquifer recharge, climate change or excessive groundwater exploitation, and lead to the displacement of the salt and freshwater mixing zone towards the mainland. This salinized part of the coastal aquifer and prevents its use for water supply or irrigation. The given results will provide a better understanding of the salinization process in the case study area
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
