松花江三湖保护区水生环境现状评价及保护对策

Present situation evaluation and protective countermeasure of water ecologic environment in three lakes protection area of Songhuajiang river

通过评价松花江三湖保护区水质现状，三湖鱼类区系组成及变化规律．分析流域内各污染源对水生环境产 生的影响及存在的问题，对三湖保护区水生环境的保护对策进行了探讨。

The paper analyses the influence of every pollution source to the water ecologic envi- ronment and the existed question and discusses the protective countermeasure of water ecologic environment in three lakes protection area of Songhuajiang river through the evaluation of present situation of water quality, the fish composition and the variation law in three lakes protection area of Songhuajiang river.