环境因子对巢湖沉积物中NH4+释放的影响(英文)

被引:11
作者
刘静静 [1 ]
汪家权 [2 ]
徐文炘 [1 ]
机构
[1] 桂林矿产地质研究院
[2] 合肥工业大学资源与环境工程学院
关键词
NH4+ release; Environmental factors; Sediment; Chaohu Lake;
D O I
10.16175/j.cnki.1009-4229.2008.03.002
中图分类号
X524 [湖泊、水库];
学科分类号
0815 ;
摘要
[Objective] The aim of the research was to reveal the influence mechanism of sediment-water exchange of nutrients in Chaohu Lake. [Method] The effects of environmental factors (overlying water, temperature, pH and dissolved oxygen concentration) on NH4+ release in sediment from Chaohu Lake were studied under controlled laboratory conditions. [Results] With the rising of temperature and the decrease of NH4+ concentration in overlying water, NH4+ released from sediment increased significantly. pH had a great effect on NH4+ release with a complicated mechanism. The largest release amount of NH4+ under anaerobic condition was about 6 times as much as that under aerobic condition. [Conclusion] This research would provide theoretical support for environmental management of Chaohu Lake in the project of leading water from the Yangtze River to Chaohu Lake.
引用
收藏
页码:153 / 156
页数:4
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