武汉城市湖泊水质及水体富营养化现状评价

为了判别武汉市典型城市湖泊汤逊湖、野芷湖、黄家湖和东野芷湖的水质状况，从2011年3月～2012年2月，对这四个湖泊进行了周年水质监测。采用了水体总氮、总磷、叶绿素a、透明度等参数，对水质现状、水体富营养化程度进行了综合分析。结果表明，该四湖的水质污染程度呈现明显的梯度。水体富营养化综合加权指数法评价表明，湖泊全年富营养化状态级别处于中营养到轻度富营养化之间。

Evaluation of Water Quality and Eutrophication of Urban Lakes in Wuhan

In order to identify the lake water eutrophication and water quality conditions and characteristics conditions of four typical urban lakes (Tangxun Lake, Yezhi Lake, Huangjia Lake and East Yezhi Lake) in Wuhan of Hubei province, water samples anniversary monitoring of water quality have been taken carried out around among these lakes from March of 2011 to February of 2012. The integrated evaluation has been taken on both of water quality dynamics and eutrophication level using the parameters such as total nitrogen, total phosphorus, chlorophylla and transparency. Results showed that pollution degree of the water quality were along the remarked gradients of these four lakes. The method of trophic level index (TLI) was adopted to assess the current status of the lake eutrophication, showing that they were in the transition of mesotrophication- mild eutrophication.