单因子评价法和改进的灰色关联度在水质评价中的应用

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英文篇名：Application of Single Factor Evaluation Method and Improved Grey Correlation Degree in the Water Quality Evaluation 作者：宋日文 英文作者：Song Riwen;Jinzhong Sub-bureau of Hydrologyand Water Resources Investigation in Shanxi; 关键词：黄壁庄水库 ; 单因子评价 ; 灰色关联度 ; 时空变化 英文关键词：Huangbizhuang Reservoir;;the single factor evaluation;;the grey relational degree andthe time & space change 中文刊名：SXSN 英文刊名：Shaanxi Water Resources 机构：山西省晋中市水文水资源勘测分局; 出版日期：2018-05-20 出版单位：陕西水利 年：2018 期：No.212 语种：中文; 页：SXSN201803040 页数：5 CN：03 ISSN：61-1109/TV 分类号：109-113

摘要

本文对黄壁庄水库库区内5个监测点水样采集,并分别采用单因子评价法、传统的灰色关联度及改进的灰色关联度对水库进行水质评价。结果表明,不同的水质评价方法,评价结果不同;以空间分析为例,2014年9月滹沱河与南甸河的汇合口监测点单因子评价法评价结果为劣Ⅴ类水,传统的灰色关联度法评价结果为Ⅱ类水,改进的灰色关联度法评价结果为Ⅴ类水。改进的灰色关联度相比单因子评价法更综合全面考虑各项污染因子,相比传统的灰色关联度更能将污染指标所占权重比例明确的分析,因此改进的灰色关联度法水质评价更贴近实际,具有一定的推广应用性。
        The paper collects the water samples from five monitoring points in the area of Huangbizhuang Reservoir, and evaluates the water quality of the reservoir by respectively using the single factor evaluation method, the traditional gray correlation degree and the improvedgreycorrelation degree. The results show that different water quality assessment methods have different evaluation results. Taking the spatial analysis as an example, in September 2014, the monitoring points of the convergence point of the Weihe River and the Nandian River is evaluated by the single-factor evaluation method wasthe sub-class V water. The evaluation result ofthe traditional grey correlation method is Type II water, and the result of the improved gray correlation method is Class V water. Compared with the single-factor evaluation method, the improved gray correlation degree comprehensively considers all pollution factors more, and compared with the traditional gray correlation degree, the pollution index weight ratio can beclearly analyzed. Therefore, the improved gray correlation method is more close to reality for water quality assessment, which is a certain degree of promotion and application.

引文

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