湖泊富营养化程度评价的改进灰色局势法研究  

The study of eutrophied lakes assessment on improved grey sitiation decision method

作　　者：孙世群[1] 徐晓毅[1] 叶诗瑛[1] 倪小东[1] 

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009

出　　处：《安徽大学学报（自然科学版）》2007年第6期87-90,共4页Journal of Anhui University(Natural Science Edition)

基　　金：安徽省教育厅自然科学基金资助项目(2003kj0432d)

摘　　要：灰色局势法在水质评价中是将各指标等权划分,而各因子对于水质综合评价所产生的贡献往往不一.本研究将熵权法、简单赋权法、污染贡献率法引入到灰色局势法,并将其应用于东平湖的富营养化评价中,进而考察各评价方法的应用性,并将结果与传统模糊综合评价法的结果进行比较.结果显示:基于熵权法的灰色局势评价法通过引入熵权来确定权重,避免了主观确定权重的随意性,有效地解决了确定水质的优劣和所属问题.而基于简单赋权法及污染贡献率法的灰局法只能用于粗略评价,在多湖泊多测点的评价中,需要明确评价所参照的统一标准等级,才能使评价结果具有可比性.In this reseach, Entropy weight method, Simple weight method and Rate of Pollution Contribution weight method were applied in Grey Sitiation Decision Method to assess eutrophication degree of Dongping Lake . The results showed that improved Grey Situation Decision Method based on Entropy weight method avoided the subjective endowing weight. This method was a good method by solving defining good or bad of water quality effectively, and the quality of contrast was more better than other endowing weight methods.

关 键 词：熵权 灰色局势 水质评价 富营养化 

分 类 号：X820.2[环境科学与工程—环境工程]