南水北调与水利科技
南水北調與水利科技
남수북조여수리과기
SOUTH-TO-NORTH WATER
2014年
3期
55-58
,共4页
北之江流域%水质评价%评价模型%改进物元%熵权%关联度
北之江流域%水質評價%評價模型%改進物元%熵權%關聯度
북지강류역%수질평개%평개모형%개진물원%적권%관련도
Beizhijiang-Drainage-Basin%water-quality-evaluation%evaluation-model%improved-matter2element-model%entropy%cor2-r-elation
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ò类水，中下游属ó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。
根據物元分析原理將單一的決策問題拓展為多維的物元結構，併對傳統物元模型中的中點與區間距的計算上進行瞭改進，採用熵權法確定指標的權重，構建齣流域水質評價的改進物元模型。利用廣西北之江流域2011年水質數據，選取5箇典型斷麵和8箇水質評價指標，採用改進物元模型進行計算，綜閤評價結果為，北之江流域上遊屬ò類水，中下遊屬ó類水。該評價結果與來賓市水功能區劃分情況基本一緻，說明改進物元模型可用于水質的綜閤評價。
근거물원분석원리장단일적결책문제탁전위다유적물원결구，병대전통물원모형중적중점여구간거적계산상진행료개진，채용적권법학정지표적권중，구건출류역수질평개적개진물원모형。이용엄서북지강류역2011년수질수거，선취5개전형단면화8개수질평개지표，채용개진물원모형진행계산，종합평개결과위，북지강류역상유속ò류수，중하유속ó류수。해평개결과여래빈시수공능구화분정황기본일치，설명개진물원모형가용우수질적종합평개。
Inthisstudy,thematter2elementanalysistheorywasusedtoexpandthesinglepolicydecisionproblemintoamulti2di2 mensional mat ter2element structure, and the calculat ion of the distance of point and interval in the traditional matter2element model was im proved. T he entropy method was used to determ ine the weight of each index, and an improved multi2dimensional matter2element model of water quality assessment was developed. T he improved matter2element model w as used to evaluate the waterqualityintheBeizhijiangDrainageBasinofGuangxi.Thewaterqualitydatain2011werecollected,andfivetypicalsec2 tionsandeightwaterqualityassessmentindexeswereselected.Theresultsshowedthatclassò waterisintheupstreamofBe2 izhijiang Drainage Basin, whereas class ó water in the midstream and downstream. The results were in accordance with water function zonation in Laibin city, indicating that the improved matter2element method is reliable for quality assessment.
