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SPATIO-TEMPORAL PATTERNS OF DIATOM COMMUNITIES IN FRONT OF THE THREE GORGES DAM: EVIDENCE OF THE EFFECTS OF HYDRODYNAMICS
Zhou, Bei1,2; Hu, Jianlin1,2; Chen, Lei3; Yuan, Yijun1,2; Xia, Chunxiang1; Yang, Xia3; Hu, Zhengyu1; Bi, Yonghong1
2015
Source PublicationFRESENIUS ENVIRONMENTAL BULLETIN
ISSN1018-4619
Volume24Issue:8APages:2593-2602
AbstractThe Three Gorges Reservoir (TGR) has a peculiar hydrological regime in China, with water level fluctuations of 30 m annually. In order to investigate the effects of hydrodynamic conditions on the diatom communities, limnological investigations were conducted monthly in front of the Three Gorges Dam (TGD) in 2013. We identified 18 diatom genera from two classes. The spatio-temporal patterns of diatoms showed an apparent heterogeneity. During the flood season (May October), high flows, high velocity, low water level, and high turbidity in the main stream indicated strong mixing and made Melosira sp. the dominant species, while the lower velocity in the bay near the TGD indicated weak mixing and made Cyclotella sp., Melosira sp., and Synedra sp. the dominant species. Meanwhile, the strong mixing and high turbidity resulted in a low diatom abundance. During the dry season (the other months), the water level was stable, water flow and velocity were low in both the bay and the main stream, which led to weak mixing and low turbidity, and Cyclotella sp. dominated in the front region of the TGD. Spring was the transitional season and water level decreased gradually, but in spite of the weak mixing and low turbidity conditions, the diatom abundance increased along with the increase of water temperature and water flow. It could be concluded that the spatio-temporal heterogeneity determined by hydrodynamics was a characteristic of the diatom communities' dynamics in front of the TGD.
SubtypeArticle
KeywordDiatom Community Spatio-temporal Patterns Three Gorges Dam Hydrodynamics Flow Velocity
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Funding OrganizationScience and Technology Research Project of China Three Gorges Corporation(CT-12-08-01 ; Science and Technology Research Project of China Three Gorges Corporation(CT-12-08-01 ; 0704098) ; 0704098) ; Science and Technology Research Project of China Three Gorges Corporation(CT-12-08-01 ; Science and Technology Research Project of China Three Gorges Corporation(CT-12-08-01 ; 0704098) ; 0704098)
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS KeywordPHYTOPLANKTON FUNCTIONAL-GROUPS ; NUTRIENT LIMITATION ; REGULATED RIVER ; WATER-QUALITY ; SOUTH-KOREA ; RESERVOIR ; BLOOMS ; REGIME ; CHINA ; STATE
WOS IDWOS:000363072100005
Funding OrganizationScience and Technology Research Project of China Three Gorges Corporation(CT-12-08-01 ; Science and Technology Research Project of China Three Gorges Corporation(CT-12-08-01 ; 0704098) ; 0704098) ; Science and Technology Research Project of China Three Gorges Corporation(CT-12-08-01 ; Science and Technology Research Project of China Three Gorges Corporation(CT-12-08-01 ; 0704098) ; 0704098)
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/27339
Collection藻类生物学及应用研究中心
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Three Gorges Complex Adm Bur, China Three Gorges Cooperat, Yichang 443133, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Bei,Hu, Jianlin,Chen, Lei,et al. SPATIO-TEMPORAL PATTERNS OF DIATOM COMMUNITIES IN FRONT OF THE THREE GORGES DAM: EVIDENCE OF THE EFFECTS OF HYDRODYNAMICS[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2015,24(8A):2593-2602.
APA Zhou, Bei.,Hu, Jianlin.,Chen, Lei.,Yuan, Yijun.,Xia, Chunxiang.,...&Bi, Yonghong.(2015).SPATIO-TEMPORAL PATTERNS OF DIATOM COMMUNITIES IN FRONT OF THE THREE GORGES DAM: EVIDENCE OF THE EFFECTS OF HYDRODYNAMICS.FRESENIUS ENVIRONMENTAL BULLETIN,24(8A),2593-2602.
MLA Zhou, Bei,et al."SPATIO-TEMPORAL PATTERNS OF DIATOM COMMUNITIES IN FRONT OF THE THREE GORGES DAM: EVIDENCE OF THE EFFECTS OF HYDRODYNAMICS".FRESENIUS ENVIRONMENTAL BULLETIN 24.8A(2015):2593-2602.
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