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	Cyanobacteria in a tributary backwater area in the Three Gorges Reservoir, China
	Xiao, Yan1; Li, Zhe1,3; Guo, Jinsong1; Liu, Jing1,2; Huang, Yang1,2
	2016
摘要	The ecological processes leading to cyanobacterial dominance in reservoirs differ somewhat from those in lakes and rivers. To explore the development of cyanobacteria in response to large-scale reservoir operation, a 2-year, biweekly monitoring program was implemented from 2007 to 2009 in the Pengxi River Backwater Area, a typical tributary of the Yangtze River in the Three Gorges Reservoir. The data were divided into 3 subsets based on the seasonal operations of the reservoir. During the low-water operation period, temperature stratified in the water column, and intensive rainfall brought suspended solids and nutrients into the Pengxi River Backwater Area. These drivers led to relatively high levels of total particulate matter and low levels of euphotic depth in the water column compared with both the high-water operation period and reservoir discharge period. During these 2 periods, increases in water temperature stimulated the growth of most cyanobacteria. We concluded that the large-scale operation caused structurally different habitats in the Pengxi River Backwater Area, related to water depth, reservoir volume, and nutrient dynamics. These impacts were closely linked to seasonal effects, such as rainfall, river flow, and water temperature, which resulted in differences in habitat among reservoir operation stages.
关键词	cyanobacteria environmental factors reservoir operation Three Gorges Reservoir tributary backwater area
DOI	10.5268/IW-6.1.803
发表期刊	INLAND WATERS
ISSN	2044-2041
卷号	6期号:1页码:77-88
通讯作者	Li, Z (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China. ; Li, Z (reprint author), China Three Gorges Corp, Beijing, Peoples R China.
收录类别	SCI
WOS记录号	WOS:000371809400007
语种	英语