基于物元模型的广西省水质评价

Comprehensive Evaluation of Water Quality in Guangxi Province Based on Matter Element Model

基于2015年3月至2016年2月广西省环保厅水质监测数据和广西省水质标准,运用物元分析理论,将评价标准、评价因子及其特征值作为物元,构建广西省水环境质量评价的物元模型。对评价标准和水质指标实测值进行归一化处理后,得到模型的经典域、节域、权系数及关联度。计算结果表明,全省14个地市整体水环境质量较好,符合Ⅰ、Ⅱ、Ⅲ类水质的地市分别为9、4、1个,计算结果符合广西省实际,说明物元模型用于水质评价是合理可行的,且评价结果具有更高的分辨率,能全面分析判别待评价对象属于某一级别的程度,为水质评价提供了新的思路和方法。

Based on water quality monitoring data from environmental protection department of Guangxi from March 2015 to February 2016,using the matter-element analysis theory,the evaluation standards, factors and the eigenvalue of water quality were selected as matter elements to establish the matter element model in water quality assessment of Guangxi province. The classical-field,controlled-field,weight-coefficient and correlation degree were concluded after normalization process of evaluation standards and water quality indicators values. The results showed that the overall water environment quality across 14 cities of Guangxi was good. The numbers of I,II,III water quality class cities were 9,4,1,respectively,and the calculation results accorded with the practice of Guangxi province. The matter element model was feasible for evaluating the water environment quality,the evaluation results had higher resolution,and it could analyze the extent how evaluation objects belonged to certain degree comprehensively. The results also expanded the ideas and methods of water environment quality assessment.