鄱阳湖蓝藻分布及其影响因素分析

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Abstract

The field monitoring data was used to analyze the distribution and its influencing factors of bloom-forming cyanobacteria and explore the source of bloom-forming cyanobacteria in Poyang Lake. It resulted that diatoms was dominant in Poyang Lake, cyanobacteria was sub-dominant, and there is a rising trend of the proportion of cyanobacteria in the composition of phytoplankton. The dominant species of cyanobacteria were Anabaena Sp., Microcystis Sp. and Planktonic Lansi. The basic law of the formation of cyanobacterial blooms at the initial stage was that cyanobacteria grow and distributed in the lentic regions with relatively high nutrient concentrations and slow flow, and then transported and gathered in the main channel under stress of flow and wind in summer and autumn in Poyang Lake. Combined with hydrologic characteristics, cyanobacteria aggregates floating in the surface of main channel in Poyang Lake was the combined effects of other four upstream regions. It can provide the basic data and information for the prevention and control of cyanobacteria blooms.

Key words： Poyang Lake bloom-forming cyanobacteria distribution

Received: 19 May 2015

PACS:	X524
	X171

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	Articles by authors
	QIAN Kui-mei
	LIU Xia
	DUAN Ming
	CHEN Yu-wei

Cite this article:

QIAN Kui-mei,LIU Xia,DUAN Ming等. Distribution and its influencing factors of bloom-forming cyanobacteria in Poyang Lake[J]. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(1): 261-267.

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http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2016/V36/I1/261

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