基于组合权重-集对分析理论的城市湖泊水质评价模型--以玄武湖为例  

Evaluation Model of Urban Lake Water Quality Based on Combined Weight-Set Pair Analysis Theory:Taking Xuanwu Lake as an Example

作　　者：朱姝娟 姜翠玲[1] 翁铣 ZHU Shujuan;JIANG Cuiling;WENG Xi(College of Hydrology and Water Resources,Hohai University,Nanjing 210024,Jiangsu,China)

机构地区：[1]河海大学水文水资源学院,江苏南京210024

出　　处：《水力发电》2023年第5期16-22,97,共8页Water Power

基　　金：长江勘测规划设计研究院开放创新基金项目(CX20-20K06);国家自然科学基金资助项目(32171563)。

摘　　要：全面准确地进行水质评价是城市湖泊有效治理的前提。研究基于组合权重-集对分析理论,以溶解氧(DO)、氨氮(NH 3-N)、总磷(TP)、总氮(TN)为评价指标,利用综合层次分析法和熵权法确定指标权重,选择六元联系数,建立了适用于玄武湖的水质评价模型。结果表明,玄武湖的水质尚未完全达到Ⅳ类水标准,与传统评价方法(单因子评价法、主成分分析法)相比,采用基于组合权重-集对分析理论的城市湖泊水质模型开展评价工作时,可通过主客观相结合的方法综合考虑多种指标,且能对同一片湖区不同区域的同一等级水质的进一步发展趋势进行分析,从而完成更为全面细致的水质评价工作,为后续城市湖泊分区治理提供更为可靠的依据。A comprehensive and accurate water quality evaluation is a prerequisite for the effective management of urban lakes.Based on the theory of combined weight-set pair analysis,the dissolved oxygen(DO),ammonia nitrogen(NH 3-N),total phosphorus(TP)and total nitrogen(TN)are used as evaluation factors,the index weights are determined by using the integrated hierarchical analysis and entropy weighting method,and the six element linkage is selected to establish a water quality evaluation model applicable to Xuanwu Lake.The results show that,(a)the water quality of Xuanwu Lake has not yet fully reached Grade IV;(b)compared with the traditional evaluation methods(single factor evaluation method,principal component analysis method),the combined weight-set pair analysis theory can consider all the indicators through a combination of subjective and objective methods,and the further development trend of the same class water quality in different areas of the same lake can be analyzed when using the urban lake water quality model based on the combined weight-set pair analysis theory to carry out water quality evaluation;and(c)a more comprehensive and detailed evaluation of water quality is completed by using the combined weight-set pair analysis theory,which provides a more reliable basis for the subsequent zoning of urban lakes.

关 键 词：水质评价 集对分析 六元联系数 组合权重 城市湖泊 玄武湖 

分 类 号：X82[环境科学与工程—环境工程] TV213.4[水利工程—水文学及水资源] TV253