摘要
根据物元分析原理将单一的决策问题拓展为多维的物元结构,并对传统物元模型中的中点与区间距的计算上进行了改进,采用熵权法确定指标的权重,构建出流域水质评价的改进物元模型。利用广西北之江流域2011年水质数据,选取5个典型断面和8个水质评价指标,采用改进物元模型进行计算,综合评价结果为,北之江流域上游属Ⅱ类水,中下游属Ⅲ类水。该评价结果与来宾市水功能区划分情况基本一致,说明改进物元模型可用于水质的综合评价。
In this study,the matter-element analysis theory was used to expand the single policy decision problem into a multi-dimensional matter-element structure,and the calculation of the distance of point and interval in the traditional matter-element model was improved.The entropy method was used to determine the weight of each index,and an improved multi-dimensional matter-element model of water quality assessment was developed.The improved matter-element model was used to evaluate the water quality in the Beizhijiang Drainage Basin of Guangxi.The water quality data in 2011were collected,and five typical sections and eight water quality assessment indexes were selected.The results showed that classⅡ water is in the upstream of Beizhijiang Drainage Basin,whereas classⅢ water in the midstream and downstream.The results were in accordance with water function zonation in Laibin city,indicating that the improved matter-element method is reliable for quality assessment.
出处
《南水北调与水利科技》
CAS
CSCD
北大核心
2014年第3期55-58,共4页
South-to-North Water Transfers and Water Science & Technology
关键词
北之江流域
水质评价
评价模型
改进物元
熵权
关联度
Beizhijiang Drainage Basin
water quality evaluation
evaluation model
improved matter-element model
entropy
correlation
作者简介
孙学颖（1990-），女，内蒙古通辽人，硕士研究生，主要从事水利水电系统规划与工程经济研究。E-mail：hhsunxueying@163．com
通讯作者：唐德善（1955-），男，江苏泰州人，教授，博士生导师，从事水利水电系统规划与工程经济研究。E-mail：tds808@163．com
