Water-Exchange Response of Downstream River-Lake System to the Flow Regulation of the Three Gorges Reservoir, China

doi:10.3390/w11112394

	Water-Exchange Response of Downstream River-Lake System to the Flow Regulation of the Three Gorges Reservoir, China
	Zhang, Junhong 2,3; Huang, Tao 2; Chen, Lu 4; Liu, Xiaofang 5; Zhu, Lingling 6; Feng, Luojie 1; Yang, Yunping 7
刊名	WATER
	2019-11-01
卷号	11 期号:11 页码:16
关键词	Three Gorges Reservoir impoundment influences river-lake system water exchange
DOI	10.3390/w11112394
通讯作者	Chen, Lu(chen_lu@hust.edu.cn)
英文摘要	Hydrological regime changes in the river-lake system and their influences on the ecological environment downstream dams have attracted increasingly more attention all over the world. The Dongting lake downstream of the Three Gorges Dam (TGD) in the Yangtze River has been experiencing a series of hydraulic and hydrological changes over the last decade. The hydrological and ecological influences of the TGD flow regulation on the Dongting river-lake system and its functional mechanism during the impounding periods remain extremely unclear. This study examines the hydrological changes in the Dongting river-lake system based on a 1D/2D coupled hydrodynamic model. In particular, the inflow boundary of the model with and without the TGD was applied with the outflow and inflow of the TGD, respectively, during the same regulation periods. The results show that the diverted flow from the Yangtze River into the Dongting lake and outflow from the lake back to the river drastically decreased during the impounding periods, especially in October. The decreased water exchange between the Yangtze River and the Dongting lake impaired the water residence capacity to some extent in the lake. Stage decrease in the lake area resulted in a significant reduction in the water volume of the Dongting lake with the same time percentage. In addition, the obvious drainage effect in Dongting lake due to the increased stage difference and current speed after the TGD operation was the essential cause of hydrological changes in the lake area. These results provide an improvement in the understanding of impoundment influences on the large river-lake system and give some practical information for ecological environment management in similar river-lake systems.
资助项目	National Key Research and Development Plan[2016YFC0400901] ; National Natural Science Foundation of China[51509273] ; National Natural Science Foundation of China[41601006] ; National Natural Science Foundation of China[51679094] ; National Natural Science Foundation of China[51409085]
WOS关键词	LAND-USE ; RUNOFF SIMULATION ; JINGJIANG RIVER ; DONGTING LAKE ; YANGTZE-RIVER ; DAM ; MIDDLE ; MANAGEMENT ; IMPACTS ; POLLUTION
WOS研究方向	Water Resources
语种	英语
出版者	MDPI
WOS记录号	WOS:000502264500196
资助机构	National Key Research and Development Plan ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/130703]
专题	中国科学院地理科学与资源研究所
通讯作者	Chen, Lu
作者单位	1.Guangzhou Inst Geog, Guangzhou 510070, Guangdong, Peoples R China 2.South Cent Univ Nationalities, Coll Resources & Environm Sci, Wuhan 430074, Hubei, Peoples R China 3.China Inst Water Resources & Hydropower Res, Beijing 100038, Peoples R China 4.Huazhong Univ Sci & Technol, Coll Hydropower & Informat Engn, Wuhan 430074, Hubei, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 6.Changjiang Water Resources Commiss, Bur Hydrol, Wuhan 430010, Hubei, Peoples R China 7.Tianjin Res Inst Water Transport Engn, Tianjin 300456, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Junhong,Huang, Tao,Chen, Lu,et al. Water-Exchange Response of Downstream River-Lake System to the Flow Regulation of the Three Gorges Reservoir, China[J]. WATER,2019,11(11):16.
APA	Zhang, Junhong.,Huang, Tao.,Chen, Lu.,Liu, Xiaofang.,Zhu, Lingling.,...&Yang, Yunping.(2019).Water-Exchange Response of Downstream River-Lake System to the Flow Regulation of the Three Gorges Reservoir, China.WATER,11(11),16.
MLA	Zhang, Junhong,et al."Water-Exchange Response of Downstream River-Lake System to the Flow Regulation of the Three Gorges Reservoir, China".WATER 11.11(2019):16.