摘要
通过现场采样分析,研究骆马湖及其出入湖河道的水质现状、湖区底质营养盐含量以及水生生物资源的种类和数量。结果表明,2011年骆马湖水质为地表水Ⅲ类,已接近富营养化水平,底栖生物资源较前几年有明显减少;骆马湖营养物质的主要来源为上游的中运河和沂河,其污染物贡献率达90%。指出提高区域污水处理率、降低入湖河道的污染物浓度是保护骆马湖生态环境的必由之路。
An in situ sampling was conducted to study the water quality in Luoma Lake and its connected rivers, as well as the nutrient content in sediment and the species diversity and quantity of benthos in the lake. The results show that the water quality in 2011 reached grade m of the surface water standards and the lake had almost reached eutrophication. The species diversity and quantity of benthos have decreased noticeably in recent years. The pollutant source solution suggests that the main nutrient source of Luoma Lake was the Zhongyunhe River and the Yihe River, and the contribution rate of the pollutant reached 90%. In view of this, improving local wastewater treatment efficiency and reducing the pollutant concentration of the connected rivers are effective methods for protecting the ecological environment of Luoma Lake.
出处
《水资源保护》
CAS
2013年第3期39-43,50,共6页
Water Resources Protection
基金
江苏省水利科技基金(2011041)
水利部公益性行业科研专项基金(201101024)
关键词
出入湖河道
生态环境质量
污染源
贡献率
骆马湖
connected rivers
ecological environment quality
pollutant source
contribution rate
Luoma Lake
