长江、嘉陵江重庆段水质现状评价与预测

ASSEMENT AND FORCASTING OF THE WATER QUALITY STATUS OF YANGTZE RIVER AND JIALING RIVER IN CHONGQING

采用隶属度加权综合平均水质级别法和三参量评价指数法对长江嘉陵江重庆干流段的平均水质进行了现状评价，同时利用一维水质模型和二维水质数学模型对干流平均水质和城区段的岸边水质进行了模拟计算，提出了未来两江可能出现的水质问题以及防治污染需要重点控制的污染物。

Two new methods of water quality assessment were introduced inthis article, one of them was the Weighting Average Grade of Subordinating Degreeof water Quality Indexes and the other was the Three Parameters lndexes.The pres-ent status of water quality of Yangtze River and Jialing River in Chongqing weredeterminated and the main pollutants in different river reaches were sigted out bynsing above methods. (2) By using two dimensional model, the concentration fields of the main pollutants on Changring's urban reaches of Yangtze River and Jialing for the present and forcasting status of pollutants load were calculated out .