模糊综合法在水质评价中的应用分析  

Application of Fuzzy Comprehensive Evaluation Method in Water Quality Assessment

作　　者：魏文杰[1] 张新华[1] 罗吉忠[1] 王佳[1] 

机构地区：[1]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065

出　　处：《节水灌溉》2014年第9期46-49,共4页Water Saving Irrigation

基　　金：国家科技重大水专项(2009ZX07104-001)

摘　　要：由于水体环境本身存在大量不确定性因素,各个水质指标的级别划分、标准确定都具有模糊性,因此模糊综合法在水质综合评价中得到了广泛的应用。该法综合考虑所有水质指标对水环境的影响,能够比较合理、全面的对水质进行评价,但不能很好地得出影响水质最主要的几项水质指标和超标倍数。选取大凌河流域白石饮用水源区作为研究对象,在模糊综合法评价的基础上引入单因子法和主成分分析法的评价结果,从而进一步丰富完善水质评价。评价结果可以为该流域制定水环境管理措施提供参考。Due to the many uncertainty factors in aquatic environment, the classification and the level standard of each water quality index is fuzzy, therefore the fuzzy comprehensive evaluation method has been widely used in the evaluation of water quality. This method can comprehensively consider the effects of all the water quality index of water environment and can more reasonably and comprehensively evaluate the water quality. But it is not good at analyzing the main affecting indexes of water quality and the overweight value. This paper evaluates the water quality of Baishi drinking catchment in Dalinghe basin based on the fuzzy comprehensive evaluation method and introduces the single factor index method and principal component analysis to improve the water quality evaluation results. It can provide reference for developing management of the basin water environment.

关 键 词：水质评价 模糊综合法 单因子法 主成分分析法 

分 类 号：X824[环境科学与工程—环境工程]