代表性水质评价方法的比较研究  

Comparative Study on Representative Water Quality Assessment Methods

作　　者：安乐生[1,2] 赵全升[2] 刘贯群[1] 冯娟[1,2] 

机构地区：[1]中国海洋大学环境科学与工程学院,山东青岛266100 [2]青岛大学环境科学系,山东青岛266071

出　　处：《中国环境监测》2010年第5期47-51,共5页Environmental Monitoring in China

基　　金：国家自然科学基金项目(40772151)

摘　　要：从太湖流域国控断面常规监测数据出发,利用代表性水质评价方法对各断面进行评价,系统分析比较这些方法的优缺点。结果显示:①单因子指数法评价结果比较保守;②内梅罗指数法将"1"作为清洁与污染的分界点,指数偏小;③灰色关联分析法水质指标权重系数的确定较模糊综合评判法合理,结果也更接近于综合水质标志指数法;④综合水质标志指数法评价结果与其它评价方法结果重合度最高,且模糊评判法、灰色关联分析法和BP-ANN法的评价结果均向综合水质标志指数法逼近。综合水质标志指数法以单因子指数法为基础,对劣Ⅴ类水进行细化,将恶臭对水质的不利影响考虑其中,其指数组成合理,且易于操作施行。Beginning with the routine monitoring data from the national surface water monitoring spot of Taihu Lake basin,evaluating the water quality of monitoring sections with some common methods,making comparative analysis of the advantages and disadvantages of these methods.The result shows that： ① single-factor index method is very conservative;② Nemero index method uses＂1＂as the cut-off point of cleanliness and pollution,which is a little small;③ the determination of water quality index weight coefficient of gray correlation analysis method is more reasonable than fuzzy comprehensive evaluation method and the result is more close to the result of comprehensive water quality index.④ the result of comprehensive water quality identification index method has the highest degree of coincidence with the results of others,and the results of fuzzy comprehensive evaluation method,gray correlation analysis method and BP-ANN approximate to the result of comprehensive water quality identification index method.Based on the single-factor index method,comprehensive water quality index method considers the adverse effects of stink to the water quality,which also has reasonable indexes and is easy to put into practice.

关 键 词：水质评价 综合水质标志指数 模糊综合评价 灰色关联分析 BP-ANN 

分 类 号：X824[环境科学与工程—环境工程]