scholarly journals Impact of Cascaded Reservoirs Group on Flow Regime in the Middle and Lower Reaches of the Yangtze River

Water ◽  
2016 ◽  
Vol 8 (6) ◽  
pp. 218 ◽  
Author(s):  
Weixin Duan ◽  
Shenglian Guo ◽  
Jun Wang ◽  
Dedi Liu
Keyword(s):  
Flow Regime ◽  
Yangtze River ◽  
The Yangtze River ◽  
Cascaded Reservoirs

Impact of the Three Gorges reservoir operation on downstream ecological water requirements

2012 ◽  
Vol 43 (1-2) ◽  
pp. 48-53 ◽  
Author(s):  
Qiongfang Li ◽  
Meixiu Yu ◽  
Jianhua Zhao ◽  
Tao Cai ◽  
Guobin Lu ◽  
...  
Keyword(s):  
Flow Regime ◽  
Reservoir Operation ◽  
Yangtze River ◽  
Three Gorges Reservoir ◽  
Three Gorges ◽  
The Yangtze River ◽  
Water Requirements ◽  
The Three Gorges Reservoir ◽  
The Three Gorges ◽  
Ecological Water Requirements

With population increase and economic growth, the flow regime of the Yangtze River has been altered to some extent by human activities, particularly dam construction. Dam-induced alterations in the flow regime of the Yangtze River will unavoidably influence water allocation among different water users and instream ecological water requirements may not be guaranteed during some months, particularly during phases of reservoir storing water. To assess the impacts of the Three Gorges reservoir operation on the downstream minimum instream ecological water requirements, this paper selected the Three Gorges reservoir and Yichang hydrological station below the reservoir as case study sites. On the basis of long-term time series of daily discharge data, the reservoir outflow was simulated under two water storing schemes and the degree to which the downstream minimum ecological flow was satisfied was computed. The results of this paper could provide references for the integrated management of the Yangtze River water resources and the assessment of dam-induced impacts on the Yangtze River ecosystem health.

Investigation into the Impacts of the Gezhouba and the Three Gorges Reservoirs on the Flow Regime of the Yangtze River

2013 ◽  
Vol 18 (9) ◽  
pp. 1098-1106 ◽  
Author(s):  
Meixiu Yu ◽  
Qiongfang Li ◽  
Guobin Lu ◽  
Tao Cai ◽  
Wei Xie ◽  
...  
Keyword(s):  
Flow Regime ◽  
Yangtze River ◽  
Three Gorges ◽  
The Yangtze River ◽  
The Three Gorges

scholarly journals Analyzing Changes in the Flow Regime of the Yangtze River Using the Eco-Flow Metrics and IHA Metrics

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1552 ◽  
Author(s):  
Bing Gao ◽  
Jie Li ◽  
Xiaoshu Wang
Keyword(s):  
Flow Regime ◽  
Reservoir Operation ◽  
Yangtze River ◽  
Main Channel ◽  
Climate Variation ◽  
Low Flow ◽  
Distributed Hydrological Model ◽  
The Yangtze River ◽  
Regime Changes ◽  
Precipitation Decrease

Changes in the flow regime of the Yangtze River were investigated using an efficient framework that combined the eco-flow metrics (ecosurplus and ecodeficit) and Indicators of Hydrologic Alteration (IHA) metrics. A distributed hydrological model was used to simulate the natural flow regime and quantitatively separate the impacts of reservoir operation and climate variation on flow regime changes. The results showed that the flow regime changed significantly between the pre-dam and post-dam periods in the main channel and major tributaries. Autumn streamflow significantly decreased in the main channel and in the tributaries of the upper Yangtze River, as a result of a precipitation decrease and reservoir water storage. The release of water from reservoirs to support flood regulation resulted in a significant increase in winter streamflow in the main channel and in the Minjiang, Wujiang, and Hanjiang tributaries. Reservoir operation and climate variation caused a significant reduction in low flow pulse duration in the middle reach of the Yangtze River. Reservoir operation also led to an increase in the frequency of low flow pulses, an increase in the frequency of flow variation and a decrease in the rate of rising flow in most of the tributaries. An earlier annual minimum flow date was detected in the middle and lower reaches of the Yangtze River due to reservoir operation. This study provides a methodology that can be implemented to assess flow regime changes caused by dam construction in other large catchments.

Yiling Multi-span Cable-Stayed Bridge over the Yangtze River

2004 ◽  
Vol 88 (8) ◽  
pp. 59-64
Author(s):  
Changyu Shao ◽  
Qinger Deng
Keyword(s):  
Yangtze River ◽  
The Yangtze River ◽  
Cable Stayed Bridge

Influences of Three Gorges Dam on Flow Regime of Yangtze River, China

2019 ◽  
Vol 14 (16) ◽  
pp. 5899-5905
Author(s):  
Rawshan Othman Ali ◽  
Arez Mohammed Ismael ◽  
Muhammad Arif Mengal ◽  
Nadeem Nawaz ◽  
Arien Heryansyah
Keyword(s):  
Flow Regime ◽  
Yangtze River ◽  
Three Gorges Dam ◽  
Three Gorges
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