西江调水对珠海市供水水库富营养化的影响及其管理对策

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Abstract

Total nitrogen (TN) and total phosphorus (TP) of two pumping stations and seven pumped storage reservoirs were monitored in Zhuhai City from the year of 2006 to 2011. Results showed that nutrients level of Xijiang River was significantly higher than that of the seven reservoirs. Pumping water from Xijiang River resulted in a sharp rise of nutrients level in the reservoirs in the short term, and a following cyanobacteria bloom in some reservoirs. The lowest TN and TP concentrations were detected in three middle-sized reservoirs and the highest in two small reservoirs; the main reasons were that small reservoirs showed a less buffer, self-purification and capacity of pollutant. Effective approaches to relieving eutrophication process included setting up reasonable pumping water quality standards and constructing ecological engineering. Moreover, we suggest that optimal pumping through adjusting hydraulic retention time could reduce or avoid the risk of cyanobacterial blooms.

Key words： Zhuhai City pumped storage reservoir eutrophication management strategy

Received: 25 August 2013

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	Articles by authors
	LIU Ge-xin
	WU Meng-li
	YIN Juan
	FENG Yuan-chuan

Cite this article:

LIU Ge-xin,WU Meng-li,YIN Juan, et al. Influence of pumping water from Xijiang River on eutrophication of water supply reservoirs and its management strategy in Zhuhai City[J]. , 2013, 32(4): 494-499.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2013/V32/I4/494

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