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首页> 外文期刊>Environmental Science & Technology >Contribution of Groundwater Discharge to the Coastal Dissolved Nutrients and Trace Metal Concentrations in Majorca Island: Karstic vs Detrital Systems
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Contribution of Groundwater Discharge to the Coastal Dissolved Nutrients and Trace Metal Concentrations in Majorca Island: Karstic vs Detrital Systems

机译：马略卡岛的地下水排放对沿海溶解营养物和微量金属的贡献：岩溶与碎屑系统

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摘要

Submarine groundwater discharge (SGD) and derived nutrient (NO_2~-, NO_3~-, NH_4~-, PO_4~(3-), and SiO_2) and trace element (Cd, Co, Cu, Fe, Mo, Ni, Pb, V and Zn) loadings to the coastal sea were systematically assessed along the coast of Majorca Island, Spain, in a general survey around the island and in three representative coves during 2010. We estimated that brackish water discharges through the shoreline are important contributors to the DIN, SiO_2, Fe, and Zn budgets of the nearshore waters. Furthermore, our results showed that SGD-derived elements are conditioned by the hydrogeological formations of the aquifer and discharge type. Thus, while rapid discharges through karstic conduits are enriched in SiO_2 and Zn, the large detrital aquifers of the island typically present enhanced concentrations of Fe. The estimated total annual inputs of chemicals constituents discharged by SGD to the coastal waters were as follows: DIN: 610 × 10~3 kg yr~(-1), SiO_2: 1400 × 10~3 kg yr~(-1), Fe: 3.2 × 10~3 kg yr~(-1), and Zn: 2.0 × 10~3 kg yr~(-1). Our results provide evidence that SGD is a major contributor to the dissolved pool of inorganic nutrients and trace metals in the nearshore waters of Majorca.
机译：海底地下水排放（SGD）及其衍生的养分（NO_2〜-，NO_3〜-，NH_4〜-，PO_4〜（3-）和SiO_2）和微量元素（Cd，Co，Cu，Cu，Fe，Mo，Ni，Pb，在2010年期间，通过对西班牙马略卡岛沿岸和三个有代表性的海湾进行的全面调查，系统评估了沿海海域的V和Zn含量。我们估计，通过海岸线的咸水排放是造成沿海地区咸淡水的重要因素。近岸水域的DIN，SiO_2，Fe和Zn预算。此外，我们的结果表明，SGD衍生的元素受含水层和排放类型的水文地质条件制约。因此，尽管通过岩溶导管的快速放电富含SiO_2和Zn，但该岛的大型碎屑含水层通常会提高铁的浓度。 SGD排放到沿海水域的化学成分的估计年总投入量如下：DIN：610×10〜3 kg yr〜（-1），SiO_2：1400×10〜3 kg yr〜（-1），铁：3.2×10〜3kg yr〜（-1），Zn：2.0×10〜3kg yr〜（-1）。我们的结果提供了证据，表明SGD是马略卡岛近岸水中溶解的无机养分和微量金属的主要来源。

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  • 来源
    《Environmental Science & Technology》 |2014年第20期|11819-11827|共9页
  • 作者

    Antonio Tovar-Sanchez; Gotzon Basterretxea; Valenti Rodellas; David Sanchez-Quiles; Jordi Garcia-Orellana; Pere Masque; Antoni Jordi; Jose M. Lopez; Ester Garcia-Solsona;

  • 作者单位

    Department of Ecotoxicology, Ecophysiology and Biodiversity of Aquatic Systems, ICMAN (CSIC), Campus Universitario Rio San Pedro, 11510 Puerto Real, Cadiz, Spain,Department of Global Change Research, Mediterranean Institute for Advanced Studies IMEDEA (UIB-CSIC), Miguel Marques 21, 07190 Balearic Islands, Spain;

    Department of Ecology and Marine Resources, Mediterranean Institute for Advanced Studies, IMEDEA (UIB-CSIC), Miguel Marques 21, 07190 Balearic Islands, Spain;

    Institut de Ciencia i Tecnologia Ambientals Universitat Autonoma de Barcelona, Bellaterra, 08193 Barcelona, Spain;

    Department of Global Change Research, Mediterranean Institute for Advanced Studies IMEDEA (UIB-CSIC), Miguel Marques 21, 07190 Balearic Islands, Spain;

    Institut de Ciencia i Tecnologia Ambientals Universitat Autonoma de Barcelona, Bellaterra, 08193 Barcelona, Spain,Departament de Fisica & Institut de Ciencia i Tecnologia Ambientals, Universitat Autonoma de Barcelona, Bellaterra, 08193 Barcelona, Spain;

    Institut de Ciencia i Tecnologia Ambientals Universitat Autonoma de Barcelona, Bellaterra, 08193 Barcelona, Spain Departament de Fisica & Institut de Ciencia i Tecnologia Ambientals, Universitat Autonoma de Barcelona, Bellaterra, 08193 Barcelona, Spain Oceans Institute and School of Physics, The University of Western Australia, 35 Stilling Highway, Crawley, WA 6009, Australia School of Natural Sciences and Centre for Marine Ecosystems Research, Edith Cowan University, Joondalup, WA, Australia;

    Department of Ecology and Marine Resources, Mediterranean Institute for Advanced Studies, IMEDEA (UIB-CSIC), Miguel Marques 21, 07190 Balearic Islands, Spain;

    Instituto Geologico y Minero de Espana (IGME), Area de Infrastructure Hidrogeologica, Oficina de Proyectos de Palma de Mallorca, C/Ciudad de Queretaro s, 07007 Balearic Islands, Spain;

    Institut de Ciencia i Tecnologia Ambientals Universitat Autonoma de Barcelona, Bellaterra, 08193 Barcelona, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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