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	Spatio-temporal distribution of nitrogen in the undulating littoral zone of Lake Taihu, China
	Wang, Hongjun; Lu, Jinwei; Wang, Weidong; Huang, Peisheng; Yin, Chengqing
	2007
会议名称	International Symposium on the Eutrophication Process and Control in Large Shallow Lakes
会议日期	APR 22-26, 2005
会议地点	Nanjing, PEOPLES R CHINA
关键词	nitrogen distribution spatial temporal littoral zone
英文摘要	Spatio-temporal distribution of nitrogen was examined along the gradient from open water to lakeshore in Lake Taihu, China. Two types of undulating littoral zones were selected: natural reed belt and bare lakeshore. The reed belt affected nitrogen transformation and was sink for internal-lake nitrogen, whereas the bare lakeshore showed little effect. During the growing season, NO(3)(-)-N concentration increased by up to 3-5 times from open water to reed belt, while NH(4)(+)-N concentration decreased. It suggested that nitrification was the main nitrogen process in reed belt. Total dissolved nitrogen (TDN) showed little spatial variation, indicating that most of nitrogen released from sediment did not move into open water again. Significant temporal variation of dissolved nitrogen occurred and was similar in both the littoral zone and the open water. Maximum TDN and NH(4)(+)-N concentrations occurred in January, and NO(3)(-)-N in March. Minimum NH(4)(+)-N and NO(3)(-)-N concentrations occurred in July and August, respectively. An increasing total soil nitrogen was found in the surface sediments from reed belt to open water. This further suggested that the reed-covered littoral zone had strong nitrogen transformation potential.
ISSN号	0018-8158
内容类型	会议论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24735]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Wang, Hongjun,Lu, Jinwei,Wang, Weidong,et al. Spatio-temporal distribution of nitrogen in the undulating littoral zone of Lake Taihu, China[C]. 见:International Symposium on the Eutrophication Process and Control in Large Shallow Lakes. Nanjing, PEOPLES R CHINA. APR 22-26, 2005.

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