基于粗集-模糊综合评价法的水质指标约简研究  

Study on Water Quality Indices Reduction Based on Rough-Fuzzy Comprehensive Evaluation Method

作　　者：刁占峰[1] 张丹[2] 张同军 

机构地区：[1]沈阳农业大学高等职业技术学院,辽宁沈阳110122 [2]辽宁省水利水电科学研究院,辽宁沈阳110003 [3]辽宁省抚顺市清原满族自治县水务局,辽宁清原113300

出　　处：《安徽农业科学》2010年第26期14582-14584,共3页Journal of Anhui Agricultural Sciences

摘　　要：将模糊综合评价方法应用于水质评价中,并基于粗集理论善于解决不确定和不精确问题的优点,以模糊综合评价结果为水质级别标准,将其应用于水质评价指标的筛选,得出高锰酸钾指数指标是最重要的水质影响指标,亚硝酸盐氮次之,并确定了各水质指标相对于水质级别的属性重要性。应用实例表明,模糊综合评价方法能很好地解决水质评价中各指标的模糊特征,将粗集理论应用于水质评价因子的筛选,可为水质评价提供可靠的依据。The fuzzy integration evaluation method was used for water quality analysis.Based on the advantage of dealing with uncertain and imprecise problems,fuzzy comprehensive evaluation result was used as the water quality grades criterion to screen out the water quality evaluation indices.It showed that potassium permanganate index is the most important influence factor,and nitrite-nitrogen takes the second place.It also identified the indexes importance in relation to the properties.The application indicated that the fuzzy comprehensive evaluation method is a good solution to the ambiguity problem,and rough set provides a reliable scientific basis for water quality evaluation indices filtering.

关 键 词：粗集理论 模糊综合评价法 水质 

分 类 号：X143[环境科学与工程—环境科学]