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TROPHIC STATUS OF TRIBUTARY BAY AGGREGATE AND THEIR RELATIONSHIPS WITH BASIN CHARACTERISTICS IN A LARGE, SUBTROPICAL DENDRITIC RESERVOIR, CHINA
Tan, Lu1,2; Cai, Qinghua1; Zhang, Hongye1,2; Shen, Henglun1,2; Ye, Lin1; Cai, QH (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 Donghu Nanlu, Wuhan 430072, Peoples R China.
2014
Source PublicationFRESENIUS ENVIRONMENTAL BULLETIN
ISSN1018-4619
Volume23Issue:3Pages:650-659
AbstractWe surveyed the trophic status and its limiting factors of the Three-Gorges Reservoir (TGR) in China, including 153 sites in the mainstream of Yangtze River and 17 tributary bays quarterly for one year after the first full-capacity impoundment (175 m above sea level.) in 2010. Carlson-type trophic state indexes (TSI), including the trophic index of total phosphorus (TSITP), total nitrogen (TSITN), chlorophyll a (TSICHL,), and Secchi depth (TSISD), were used to assess trophic status of TGR. Based on TSICHL, trophic status of the mainstream was oligotrophic in the four seasons; however most of tributary bays were in eutrophic status in spring and summer and oligotrophic states in autumn and winter. Judging from TSISD, the mainstream and tributary bays were in the status of mesotrophication in winter, but hypertrophication or eutrophication in the other seasons, TSITP showed that the mainstream was in the eutrophic or hypertrophic status; the tributary bays were in the eutrophic status in spring and summer, but in the mesotrophic status in autumn and winter. TSITN revealed that mainstream and tributary bays were characterized as eutrophic status in the four seasons. Using Carlson's two-dimensional graphical approach, the deviations of TSISD, TSITP and TSITN from TSICHL, indicated that algal growth in the mainstream of TGR was limited by light other than nutrient in all year. For the tributary bays of TGR, light might be the factor limiting algal growth in autumn and winter. However, in spring and slimmer, nutrient and grazing became the limiting factors in some tributary bays. In addition, Basin characteristic had a significant influence on the trophic status and limiting factors in TGR. Our research provided fundamental information trophic status of the whole TGR water body and is helpfulness for water quality management of the reservoir.; We surveyed the trophic status and its limiting factors of the Three-Gorges Reservoir (TGR) in China, including 153 sites in the mainstream of Yangtze River and 17 tributary bays quarterly for one year after the first full-capacity impoundment (175 m above sea level.) in 2010. Carlson-type trophic state indexes (TSI), including the trophic index of total phosphorus (TSITP), total nitrogen (TSITN), chlorophyll a (TSICHL,), and Secchi depth (TSISD), were used to assess trophic status of TGR. Based on TSICHL, trophic status of the mainstream was oligotrophic in the four seasons; however most of tributary bays were in eutrophic status in spring and summer and oligotrophic states in autumn and winter. Judging from TSISD, the mainstream and tributary bays were in the status of mesotrophication in winter, but hypertrophication or eutrophication in the other seasons, TSITP showed that the mainstream was in the eutrophic or hypertrophic status; the tributary bays were in the eutrophic status in spring and summer, but in the mesotrophic status in autumn and winter. TSITN revealed that mainstream and tributary bays were characterized as eutrophic status in the four seasons. Using Carlson's two-dimensional graphical approach, the deviations of TSISD, TSITP and TSITN from TSICHL, indicated that algal growth in the mainstream of TGR was limited by light other than nutrient in all year. For the tributary bays of TGR, light might be the factor limiting algal growth in autumn and winter. However, in spring and slimmer, nutrient and grazing became the limiting factors in some tributary bays. In addition, Basin characteristic had a significant influence on the trophic status and limiting factors in TGR. Our research provided fundamental information trophic status of the whole TGR water body and is helpfulness for water quality management of the reservoir.
SubtypeArticle
KeywordThree-gorges Reservoir Tributary Bays Trophic Status Basin Characteristics Limiting Factors
Department[Tan, Lu
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Natural Science Foundation of China [40911130508]; State Key Laboratory FEBL Research Grant [2011FBZ02]; Major S&T Special Project of Water Pollution Control and Management [2012ZX07104-002] ; National Natural Science Foundation of China [40911130508]; State Key Laboratory FEBL Research Grant [2011FBZ02]; Major S&T Special Project of Water Pollution Control and Management [2012ZX07104-002] ; National Natural Science Foundation of China [40911130508]; State Key Laboratory FEBL Research Grant [2011FBZ02]; Major S&T Special Project of Water Pollution Control and Management [2012ZX07104-002] ; National Natural Science Foundation of China [40911130508]; State Key Laboratory FEBL Research Grant [2011FBZ02]; Major S&T Special Project of Water Pollution Control and Management [2012ZX07104-002]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000333444900001
WOS Keyword3 GORGES RESERVOIR ; LAKES LAKE TAIHU ; XIANGXI BAY ; MACROINVERTEBRATE COMMUNITY ; NUTRIENT LIMITATION ; SHALLOW LAKES ; EUTROPHICATION ; PHOSPHORUS ; WATER ; MANAGEMENT
Funding OrganizationNational Natural Science Foundation of China [40911130508]; State Key Laboratory FEBL Research Grant [2011FBZ02]; Major S&T Special Project of Water Pollution Control and Management [2012ZX07104-002] ; National Natural Science Foundation of China [40911130508]; State Key Laboratory FEBL Research Grant [2011FBZ02]; Major S&T Special Project of Water Pollution Control and Management [2012ZX07104-002] ; National Natural Science Foundation of China [40911130508]; State Key Laboratory FEBL Research Grant [2011FBZ02]; Major S&T Special Project of Water Pollution Control and Management [2012ZX07104-002] ; National Natural Science Foundation of China [40911130508]; State Key Laboratory FEBL Research Grant [2011FBZ02]; Major S&T Special Project of Water Pollution Control and Management [2012ZX07104-002]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/20028
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorCai, QH (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 Donghu Nanlu, Wuhan 430072, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Tan, Lu,Cai, Qinghua,Zhang, Hongye,et al. TROPHIC STATUS OF TRIBUTARY BAY AGGREGATE AND THEIR RELATIONSHIPS WITH BASIN CHARACTERISTICS IN A LARGE, SUBTROPICAL DENDRITIC RESERVOIR, CHINA[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2014,23(3):650-659.
APA Tan, Lu,Cai, Qinghua,Zhang, Hongye,Shen, Henglun,Ye, Lin,&Cai, QH .(2014).TROPHIC STATUS OF TRIBUTARY BAY AGGREGATE AND THEIR RELATIONSHIPS WITH BASIN CHARACTERISTICS IN A LARGE, SUBTROPICAL DENDRITIC RESERVOIR, CHINA.FRESENIUS ENVIRONMENTAL BULLETIN,23(3),650-659.
MLA Tan, Lu,et al."TROPHIC STATUS OF TRIBUTARY BAY AGGREGATE AND THEIR RELATIONSHIPS WITH BASIN CHARACTERISTICS IN A LARGE, SUBTROPICAL DENDRITIC RESERVOIR, CHINA".FRESENIUS ENVIRONMENTAL BULLETIN 23.3(2014):650-659.
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