Karst groundwater protection in the Kupa River catchment area and sustainable development

Biondić, Božidar; Biondić, Ranko; Kapelj, Sanja

doi:10.1007/s00254-006-0178-4

Cited by 20 publications

(16 citation statements)

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“…Karst terrains cover roughly one-tenth of the earth's continents (Drew, 1999) and groundwater from karst aquifers contributes significantly to the water demand in many coastal regions. Due to their importance, coastal karst aquifers have been extensively studied in, for example, America (Fleury et al, 2007), Spain (Martinez-Santos et al, 2005), Morocco (Bouchaou et al, 2008;El Yaouti et al, 2009), Mexico (Escolero et al, 2007), Israel (Kafri et al, 2007), Greece (Panagopoulos, 2008), and Croatia (Biondić et al, 2006). Well-documented case studies published in the literature are mostly from limestone and dolomite aquifers of Mesozoic to Cenozoic age, e.g.…”

Section: Introductionmentioning

confidence: 99%

Groundwater salinization processes and reversibility of seawater intrusion in coastal carbonate aquifers

Han

Post

Song

2015

Journal of Hydrology

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Keywords:Carbonate aquifer Seawater intrusion Groundwater hydrochemistry Hydrogeochemical modeling China s u m m a r y Seawater intrusion (SWI) has led to salinization of fresh groundwater reserves in coastal areas worldwide and has forced the closure of water supply wells. There is a paucity of well-documented studies that report on the reversal of SWI after the closure of a well field. This study presents data from the coastal carbonate aquifer in northeast China, where large-scale extraction has ceased since 2001 after salinization of the main well field. The physical flow and concomitant hydrogeochemical processes were investigated by analyzing water level and geochemical data, including major ion chemistry and stable water isotope data. Seasonal water table and salinity fluctuations, as well as changes of d À concentrations (>39 mg/L), suggest that irrigation return flow is a significant recharge component. Therefore, the present-day elevated salinities are more likely due to agricultural activities rather than SWI. Nevertheless, seawater mixing with fresh groundwater cannot be ruled out in particular where formerly intruded seawater may still reside in immobile zones of the carbonate aquifer. The massive expansion of fish farming in seawater ponds in the coastal zone poses a new risk of salinization. Cation exchange, carbonate dissolution, and fertilizer application are the dominant processes further modifying the groundwater composition, which is investigated quantitatively using hydrogeochemical models.

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Section: Introductionmentioning

confidence: 99%

Groundwater salinization processes and reversibility of seawater intrusion in coastal carbonate aquifers

Han

Post

Song

2015

Journal of Hydrology

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“…Partly, it was deposited into the sinkhole, ignoring the fact that karstic environments have vulnerable aquifers (Biondić et al, 2003(Biondić et al, , 2006. Ba contamination was spread by underground links to the Kupica River, a tributary of the Kupa River.…”

Section: Discussionmentioning

confidence: 98%

Multidisciplinary work on barium contamination of the karstic upper Kupa River drainage basin (Croatia and Slovenia); calling for watershed management

Frančišković-Bilinski

Bilinski

Grbac³

et al. 2007

Environ Geochem Health

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The present work was designed as an extension of a previous study of a barium anomaly observed in stream sediments of the Kupa River. In its upper part the Kupa River drains a region underlain by a trans-boundary aquifer. The river is a significant water resource in a region of tourism, sport, and fishing in both Croatia and Slovenia. The contamination source is situated in Homer (Lokve), Croatia, where barite was mined until 10 years ago. The barium processing waste material (<3-mm fraction) was carelessly deposited in gardens, forests, and into a sinkhole, which has an underground link with the Kupica River, a tributary of the Kupa River. Barium waste and stream sediments were analyzed using comparative techniques: X-ray diffraction (XRD), X-ray fluorescence (XRF), Mössbauer spectroscopy, and grain size analysis. XRD of the waste material identified the major minerals quartz, barite, and dolomite and the Fe-containing minor minerals muscovite and goethite. Barite was identified as a minor or trace mineral in the Kupica River sediments. XRF analysis of the waste material has shown Ba and Fe to be the predominant elements, Ca and K to be minor elements, and Mn, Zn, Sr, Pb, Co, Cu, As, Zr, Rb, Y, and Mo to be trace elements. Mössbauer spectroscopy performed at room temperature (RT) was used to study iron minerals, particularly to obtain information on the valence status of Fe ions. Grain size analysis of the waste material (<63-microm fraction) has shown that it contains 23.5% clay-size material in comparison with 7-8% clay-size material in stream sediments. It is our aim to combine geochemical and medical methods to investigate the possible impact of waste disposal on human health in Lokve. At this stage of the work, concentrations of Ba and other toxic elements in the water compartment of the Kupica River (a source of drinking water) have not been monitored by Croatian Waters (name of the Croatian water authorities). The necessity of such measurements in future studies has been highlighted. A preliminary study of diseases diagnosed in Lokve shows that about 18% of the total inhabitants have serious medical problems. Diseases of the circulatory system, endocrine, nutritional, and metabolic diseases, neoplasms, and respiratory diseases predominate. This paper calls for further multidisciplinary research on the health effects of barium and trace elements, as well as for bioremediation of contaminated gardens and for watershed management of vulnerable karstic aquifers.

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“…In the Dinarides, main ionic ratio in surface and groundwaters could be changed due to the influence of sea or evaporite dissolution, mainly of gypsum and anhydrite deposits (Slišković et al, 1998;Štambuk-Giljanović, 2006). In lithologically very homogenous areas delineation of particular catchments or subcatchments by geochemical methods is possible only by calcium and magnesium ratio and natural isotope distribution and their temporal hydrological and seasonal variations (Biondić et al, 2006;Lukač Reberski et al, 2009).…”

Section: Hydrogeochemical Features Of Spring Watersmentioning

confidence: 98%

Hydrogeochemical and isotopic evidences for definition of tectonically controlled catchment areas of the Konavle area springs (SE Dalmatia, Croatia)

Prtoljan

Kapelj

Dukarić

et al. 2012

Journal of Geochemical Exploration

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Karst groundwater protection in the Kupa River catchment area and sustainable development

Cited by 20 publications

References 1 publication

Groundwater salinization processes and reversibility of seawater intrusion in coastal carbonate aquifers

Groundwater salinization processes and reversibility of seawater intrusion in coastal carbonate aquifers

Multidisciplinary work on barium contamination of the karstic upper Kupa River drainage basin (Croatia and Slovenia); calling for watershed management

Hydrogeochemical and isotopic evidences for definition of tectonically controlled catchment areas of the Konavle area springs (SE Dalmatia, Croatia)

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