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当前位置: 首页 > 文章 > 洋河水库底泥污染特性研究 农业环境科学学报 2007,26 (03) 88-95
Position: Home > Articles > Characteristics of Contaminated Sediments in Yanghe Reservoir Journal of Agro-Environment Science 2007,26 (03) 88-95

洋河水库底泥污染特性研究

作  者：
蔡金傍;李文奇;刘娜;逄勇
单  位：
河海大学环境科学与工程学院;中国水利水电科学研究院水环境研究所;山西省水文水资源勘测局
关键词：
洋河水库;底泥;重金属;总氮;总磷;有机质;风险性评价
摘  要：
通过对洋河水库表层底泥中的重金属元素及营养盐的分析,揭示其空间分布特征。采用潜在生态风险指数和地积累指数两种指标相结合的方法对表层底泥中重金属污染程度进行评价,同时采用有机指数法对表层底泥的肥力状况进行评价。结果表明,洋河水库的重金属污染主要以汞元素为主,并依据潜在生态风险指数将水库分为2个生态风险功能区:西河口和东河口轻污染区、引水口和水库中心中等污染区。底泥有机指数相当高,整个库区都处于Ⅲ级,水库平均有机指数高达0.244,水库底泥肥力较高。
译  名：
Characteristics of Contaminated Sediments in Yanghe Reservoir
作  者：
CAI Jin-bang1,LI Wen-qi2,LIU Na3,PANG Yong1(1.College of Environmental Science and Engineering,Hohai University,Nanjing 210098,China;2.Department of Water Environment,China Institute of Water Resources and Hydropower Research,Beijing 100038,China;3.Hydrology and Water Resources Survey Bureau of Shanxi Province,Taiyuan 030001,China)
关键词：
Yanghe reservoir;sediment;heavy metal;total nitrogen;total phosphors;organic matter;risk assessment
摘  要：
The content of copper,arsenic,chromium,mercury,total nitrogen,total phosphors and organic matter of surface sediments in Yanghe reservoir were quantitatively analyzed.Their plane distribution characteristics in surface sediments were analyzed using Surfer software.The pollution degree of heavy metal in the surface sediments was evaluated by the geological acumination index(Igeo) and the potential ecological risk index(RI) respectively.Finally,the fertility of the sediments was assessed using the organic index.The results showed as follows:① Mercury was the main heavy metal pollutant in the surface sediments;② The Yanghe reservoir could be divided into two sections according to the potential ecological risk index:light pollution area in northwest part and northeast part and medium pollution area in southeast part and central part;③The average organic index of the surface sediments in Yanghe reservoir was 0.244,indicating that the surface sediments were very fertile.

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