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首页> 外文期刊>Fresenius Environmental Bulletin >ASSESSMENT OF TROPHIC STATE IN THE WATER ECOSYSTEM OF GJIROKASTRA DISTRICT, ALBANIA
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ASSESSMENT OF TROPHIC STATE IN THE WATER ECOSYSTEM OF GJIROKASTRA DISTRICT, ALBANIA

机译：阿尔及利亚吉罗卡斯特拉地区水生态系统中营养状态的评估

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摘要

The assessments of water and sediment qualities are considered as the best indicators for monitoring eutrophi-cation in water ecosystems. Viroi Lake, in Gjirokastra district (south part of Albania) was selected to evaluate eutroph-ication conditions during the years 2011-2013. The water and sediment samples were collected for quality evaluation. The following physico-chemical indicators of water: pH, temperature, conductivity, dissolved oxygen, biological oxygen demand, chemical oxygen demand, nitrates (N-NO_3~-), nitrites (N-NO_2~-), ammonium (N-NH_4~+), total phosphor (TP), and the presence of microorganisms as Fecal sp. were estimated. Also, the texture, pH, CEC, carbonates (CaCO_3), total nitrogen, total phosphor and humus of sediment samples were assessed. Furthermore, the concentration of heavy metals, such as Cu, Cr, Ni, Pb and Cd, were measured in sediment samples, as sensitive indicators of water ecosystems. Background values of heavy metals, given as 90th percentile, were used to evaluate the sediment pollution from heavy metals. Based on the obtained results, this ecosystem presented a trophic degree from oligotrophy to eutrophy. Microbiological analyses showed that Viroi Lake was polluted with microorganisms (fecal streptococci and fecal coliforms). The sediments can be classified, using sediment quality guideline (SQG) of USEPA, as non-polluted or heavily polluted according to the occurrence of specific heavy metals.
机译：对水和沉积物质量的评估被认为是监测水生态系统富营养化的最佳指标。选择了吉尔卡斯特拉区（阿尔巴尼亚南部）的Viroi湖来评估2011-2013年的富营养化状况。收集水和沉积物样品以进行质量评估。以下是水的理化指标：pH，温度，电导率，溶解氧，生物需氧量，化学需氧量，硝酸盐（N-NO_3〜-），亚硝酸盐（N-NO_2〜-），铵盐（N-NH_4〜 +），总磷（TP）和微生物的存在（粪便sp。）。被估计。此外，还评估了沉积物样品的质地，pH，CEC，碳酸盐（CaCO_3），总氮，总磷和腐殖质。此外，沉积物样品中的重金属如铜，铬，镍，铅和镉的浓度是水生态系统的敏感指标。重金属的背景值（以第90个百分位数给出）用于评估重金属的沉积物污染。根据获得的结果，该生态系统呈现出从寡营养到富营养的营养程度。微生物学分析表明，Viroi湖被微生物（粪便链球菌和粪便大肠菌）污染。可以使用USEPA的沉积物质量准则（SQG）对沉积物进行分类，根据特定重金属的发生情况将其分类为未污染或严重污染。

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  • 来源
    《Fresenius Environmental Bulletin》 |2014年第12b期|3308-3313|共6页
  • 作者

    Marsela Alikaj; Ferdi Brahushi; Ciljeta Piro; Klementina Puto;

  • 作者单位

    Department of Biology, Faculty of Natural Sciences, 'Eqrem Cabej' University, Gjirokastra - Albania;

    Department of AgroEnvironment and Ecology Faculty of Agriculture and Environment Agricultural University of Tirana 1029 Kodeer - Kameez, Tirana ALBANIA;

    Faculty of Technical Medicine Sciences, Saranda Branch, University of Tirana, Saranda - Albania;

    Department of Biotechnology, Faculty of Natural Sciences, University of Tirana, Tirana - Albania;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    water; eutrophication; phosphorus; TSI index; heavy metals; sediments;

    机译：水;富营养化磷;TSI指数;重金属;沉积物;

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