基于权重集对分析法的滁州市饮用水水源地富营养化评价  

Eutrophication Assessment of Urban Drinking Water Source of Chuzhou City Based on Weight-Set Pair Analysis Method

作　　者：方国华[1] 杨琳[1] 黄显峰[1] 

机构地区：[1]河海大学水利水电学院,江苏南京210098

出　　处：《水电能源科学》2014年第2期42-45,共4页Water Resources and Power

摘　　要：针对城市饮用水水源地富营养化评价问题,以安徽省滁州市城区的西涧湖和沙河集水库两处饮用水水源地为例,在运用权重法定性确定富营养化评价因子影响程度的基础上,利用集对分析法建立了城市饮用水水源地富营养化评价的五元联系数评价模型,将水体富营养化评价因子和水质富营养化的分级标准作为集对,从而实现对水体富营养化等级的评价。研究结果表明,西涧湖和沙河集水库评价因子的五元联系数分别为(0.024,0.429,0.375,0.171,0)、(0,0.472,0.366,0.163,0);在置信度取0.7的情况下,西涧湖和沙河集水库的富营养化状态均为中营养,可见该方法评价结果直观、准确,为水源地富营养化评价及水质防护提供了理论依据。Focused on the eutrophication assessment of urban drinking water source, taking Xijian Lake and Shaheji Reservoir as an example, the weight method is used to determine the impact degree of eutrophication evaluating factor. And then the set pair analysis method is applied to establish a five-element connection number evaluation model, which sets the evaluation factors and the eutrophication grading standards as a pair to realize the evaluation of eutrophication. The results implies that the five-element connection numbers for evaluation factors of Xijian Lake and Shaheji Reservoir are.. （0. 024,0. 429,0. 375,0. 171,0）, （0,0. 472,0. 366,0. 163,0）, respectively taking the confidence level as 0. 7, Xijian Lake and Shaheji Reservoir are both in nutrition. This method is fairly accurate and intuitive, which is able to provide sci- entific and rational support for eutrophication assessment and protection of drinking water source.

关 键 词：城市饮用水水源地 富营养化 权重法 集对分析法 西涧湖 沙河集水库 

分 类 号：TV213.4[水利工程—水文学及水资源]