水资源与水工程学报2016，Vol.27Issue(6)：26-30,38,6.DOI:10.11705/j.issn.1672-643X.2016.06.05
淡水湖泊沉积物污染评价方法比较--以北大港水库为例
Comparison of evaluation methods of the freshwater lake sediment pollution:A case study of Beidagang reservoir
摘要
Abstract
In order to compare the three typical methods of evaluating the sediment pollution, samples of top sediment were collected from eleven sites of Beidagang Reservoir, and indicators of total salt content, organic matter content and the concentrations of total phosphorus and total nitrogen were monitored. Three typical methods including single factor index evaluation method, Nemerow comprehensive index evalua-tion method and fuzzy mathematic comprehensive evaluation method were used to evaluate the status of pollution respectively. The results indicated that the S1, S2 and S3 sites located in the center of the res-ervoir were moderate or severe polluted and the rest of the sites on the edge of the reservoir were non-polluted or lightly polluted. The pollution of sediment in the center was more serious than that on the edge of the reservoir. Taking the Beidagang reservoir as an example, the comparison of the three methods indi-cates that the single factor index evaluation method was convenient to evaluate but the results are relative-ly high;the Nemerow comprehensive index evaluation method was a comprehensive method, but it ig-nored the impacts of the weight of the evaluation indices;the fuzzy mathematic comprehensive evaluation method was an objective and comprehensive method, it calculated the weighting of the index based on the entropy weighting method, and the result was closer to the actual status.关键词
淡水湖泊/沉积物/污染评价/单因子指数法/内梅罗综合指数法/模糊数学综合评价法Key words
freshwater lake/sediment/pollution evaluation/single factor index evaluation/Nemerow comprehensive index evaluation/fuzzy mathematic comprehensive evaluation分类
资源环境引用本文复制引用
祁艳丽,唐永杰,蔡树伯,孙红文,刘春光..淡水湖泊沉积物污染评价方法比较--以北大港水库为例[J].水资源与水工程学报,2016,27(6):26-30,38,6.基金项目
天津市水务局科技项目(KY2014-08) （KY2014-08）
国家科技支撑项目(2012BAC07B02) （2012BAC07B02）
