基于熵权的属性识别模型在水环境质量评价中的应用  

Application of Attribute Recognition Model Based on Entropy Weight in Water Environment Quality Assessment

作　　者：王刚 WANG Gang(Fu an Disease Control and Prevention Center,Fujian Fu an 355000,China)

机构地区：[1]福安市疾病预防控制中心,福建福安355000

出　　处：《广州化工》2022年第20期168-170,共3页GuangZhou Chemical Industry

摘　　要：水环境质量评价是环境质量评价中的重要组成部分。为了使水环境质量评价结果更合理、更科学,选取全氮、全磷、溶解氧、BOD_(5)、COD_(Mn)等5个评价指标,运用属性识别模型和熵权法对水环境质量进行数值化综合评价,评价的结果与原文改进的密切值法的评价结果整体趋势大体上一致。说明基于熵权的属性识别模型在水环境质量评价中的可行性。其中熵权法赋予了各评价指标不同的熵权,避免了主观确定权重的随意性,因此得到的评价结果更加客观和科学。Water environmental quality assessment is an important part of environmental quality assessment.In order to make the assessment results of water environment quality more reasonable and scientific,attribute recognition model and entropy method was used to comprehensively evaluate water environment quality.Indexs used in attribute recognition model included TN,TP,DO,BOD_(5),COD_(Mn).The conclusion at large was similar to improved osculating value methods.It showed that the attribute recognition model based on entropy weight was feasible in water environment quality assessment.The different entropy weights to each evaluation index was gived by the entropy weight method,avoiding the randomness of subjectively determining weights,so the evaluation result was more objective and scientific.

关 键 词：属性识别模型 水环境质量 评价 熵权 

分 类 号：X824[环境科学与工程—环境工程]