作　　者： ; ;

机构地区： 桂林理工大学环境科学与工程学院

出　　处： 《水利科技与经济》 2016年第1期52-55,共4页

摘　　要： 地表水水质评价是水资源开发与利用过程中的一项重要工作。评价的方法有综合污染指数法、层次分析法等多种方法,各有利弊。选取总氮、酚、五日生化需氧量、化学需氧量、铬(六价)、氰化物、铜共7个指标,采用灰色关联分析,对广东东江的龙岗河2010~2013年水质进行评价,比较与地表水水质国家标准等级的隶属度,确定水质等级,通过层次分析法确定不同指标的影响权重。分析表明,龙岗河水质呈现出恶化趋势,其中主要超标指标是总氮、五日生化需氧量,同时评价方法可以应用于生态工程、安全评价、体育选拔等多个领域。 Surface water quality assessment is an important job in the process of development and utilization of water resources. Lots of evaluation methods have been taken into uses. such as,comprehensive pollution index method,hierarchical analysis,each of them have advantages and disadvantages. Using gray correlation analysis to evaluate water quality of The Longgang River which flows through the Guangdong province in 2010- 2013,seven indicators are included in this article,the total nitrogen,phenol,5th biochemical oxygen demand,chemical oxygen demand( cod),cr( 6),cyanide and copper. Compared with the surface water quality in the national standard grades of membership degree,The level of water quality can be determined. Through the analytic hierarchy process to determine the influence of different index weights. Analysis shows that water quality of the Longgang River presents a deteriorating trend,and the main excessive standard index is 5 total nitrogen and biochemical oxygen demand,Meanwhile the evaluation method can be applied to ecological engineering,safety evaluation,sports selection and other fields.

关 键 词： 水质评价 灰色关联法 层次分析法 综合污染指数

领　　域： [环境科学与工程]