NDLI: Impacts of Three Gorges Reservoir's water storage on flow-sediment characteristics of Dongting Lake

Content Provider	IEEE Xplore Digital Library
Author	Ou Chaomin Peng Peng Deng Chuxiong Li Jingbao
Copyright Year	2011
Description	Author affiliation: College of Information System and Management, National University of Defense Technology, Changsha, China (Ou Chaomin) \|\| College of Resources and Environment, Hunan Normal University, Changsha, China (Peng Peng; Deng Chuxiong; Li Jingbao)
Abstract	Based on the field surveyed data of flow-sediment, the subject of Three Gorges Reservoir's water storage operation influence on flow-sediment characteristics of Dongting Lake is systematically studied by the comparison method. The results are represented as follow: Firstly, flow and sediment diversion ratios of Three Outlets of Jinjiang River respectively decrease from 18.5 % and 21.4% to 11.7% and 13.6%, which causes the ratios of Three Outlets occupying the total inflow quantity in runoff volume and sediment discharge respectively decline from 41.5% and 82.9% to 21.6% and 58.5%. Secondly, average inflow flow-sediment discharge in several years respectively reduces 531×108m3 and 4715×104t. Silting rate of the lake basin decreases from 70.4% to 39.2%, and the degression scope is 31.2%. Thirdly, average change rates of water level in west, south and east Dongting lake in several years respectively decrease 1.23m, 1.45m and 1.88m. Lastly, the erosion of lake basin is more than the silting and the diameter of silty sediment particles tends thinner. And sediment discharge ratios of west and northeast Dongting Lake both synchronously rise.
Starting Page	6012
Ending Page	6015
File Size	185466
Page Count	4
File Format	PDF
ISBN	9781457702891
e-ISBN	9781457702907
DOI	10.1109/ICETCE.2011.5776546
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Water Flow-sediment characteristics Dongting Lake Water storage of Three Gorges Reservoir Lakes Reservoirs Rivers Sediments Floods
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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