Flood Control Capacity of the Three Gorges Project for Different Frequency Floods

Yan, Qiming; Jing, Zhu; Xia, Zhongxi; Zhang, Shanghong

doi:10.1089/ees.2021.0003

Cited by 11 publications

(7 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They also hypothesized that the transmission of schistosomiasis in the Three Gorges and the lower Yangtze areas might be significantly affected by significant changes in population and agricultural practices (Shen et al 2014). Since floods are employed to regulate snail populations, the decline in flood amplitude and frequency may be aggravating this condition (Yan et al 2021b). In addition, the report by McManus et al (2010) indicates that decreased snail concentrations downstream from the dam may help reduce Fig.…”

Section: Risk Of Dam Effects On Regional Ecosystemmentioning

confidence: 99%

Are global influences of cascade dams affecting river water temperature and fish ecology?

et al. 2023

View full text Add to dashboard Cite

Global warming is affecting animal populations worldwide, through chronic temperature increases and an increase in the frequency of extreme heatwave events. Reservoirs are essential for water security. All watersheds with reservoirs are impacted by their construction. These artificial ecosystems controlled by humans change considerably the natural terrestrial and aquatic ecosystem and systems and their biodiversity. The rapid increase in population growth, urbanization, and industrialization are accompanied by an increase in river discharges, which increases the total amount of pollutants. HMs contamination in aquatic environments, as well as the subsequent absorption of HMs into the food chain by aquatic creatures and people, endangers public health. Multiple uses of reservoirs promote benefits in terms of economic development, income, and employment. HMs in water can be ingested directly by aquatic species like fish and can also be ingested indirectly through the food chain; thus, it is much more important and required to conduct frequent monitoring of the aquatic environment. As a result, this review summarizes knowledge about the effects of cascade dams on river water temperature and increases on the stress physiology of fishes, and adaptation to climate change is also needed to produce more fish without global warming.

show abstract

Section: Risk Of Dam Effects On Regional Ecosystemmentioning

confidence: 99%

Are global influences of cascade dams affecting river water temperature and fish ecology?

et al. 2023

View full text Add to dashboard Cite

show abstract

“…The MIKE11 hydrodynamic module (HD) is based on vertically integrated equations for the conservation of matter and momentum, i.e., a set of equations for one-dimensional non-constant-flow Saint Venant's equations to simulate the flow state of a river [27,28]. The Abbott-Ionescu 6-point implicit difference format was used for the solution, i.e., the water level and flow were not calculated simultaneously at each calculation point, and a sequential approach was taken to calculate the water level and flow in alternating order as follows:…”

Section: Model Equation 231 Mike11 (1) Mike11 Hydrodynamic Modulementioning

confidence: 99%

Rationality Research on Pumping Station Location Based on MIKE Model: A Case Study of the Wanfu River Re-Navigation Project

Han,

Yu,

Zhang

et al. 2023

Water

View full text Add to dashboard Cite

The site selection of hydraulic structures is crucial to the successful implementation of water conservancy projects. Reasonable or not, site selection has a direct impact on the functioning of hydraulic structures, engineering safety, and environmental impact. In this paper, the proposed Wanfu River Guanqiao Ship Lock and Pumping Station engineering is utilised as the object. The MIKE model is executed to simulate both the impact of Guanqiao Ship Lock operation on the water quality of the pumping station intake as well as the effects of pumping station operation on the navigable water level in order to analyse and demonstrate the reasonableness of the pumping station’s location. According to the water quality monitoring data of the last three years, the entropy weight method coupled with the comprehensive pollution index method was used to evaluate the water quality of the Wanfu River. A one-dimensional hydrodynamic water quality model was constructed by applying MIKE11, which reveals the change rule of water quality and also demonstrates the safety of navigable water levels. The MIKE21 two-dimensional water quality model, which intuitively displays the spatial and temporal patterns of change of each indicator, was constructed. The results show the following: (1) The evaluation results of the entropy weight method coupled with the comprehensive pollution index method indicate that the water quality of the Wanfu River is Class III, which meets the water intake standard. (2) Concentrations of the indicators are higher in the abundant water period than in the dry water period, in which the water quality is Class IV in June and July. (3) There is no impact of the pump station operating on navigable water levels.

show abstract

“…A study by Yan et al (2021) determined that the TGR capacity can effectively withstand floods below a 100-years return interval. However, during 2020, only a few years after the TGD became operational, the middle Changjiang suffered from a major flood that was among the most severe in recorded history.…”

Section: Three Gorges Reservoir Storage Capacitymentioning

confidence: 99%

Severe flood probability on the middle Changjiang (Yangtze River) after completion of the Three Gorges Dam

Shankman

Lai

2022

Front. Earth Sci.

View full text Add to dashboard Cite

A major justification for building the Three Gorges Dam on the Changjiang is flood control. The dam can reduce peak discharge during severe floods. These floods, however, cannot be prevented by operation of the Three Gorges Dam alone. During the most severe floods abnormally high rainfall occurs throughout the Changjiang basin. The Three Gorges Dam can only affect discharge from the upper basin. Large tributaries on the middle Changjiang are unaffected by the dam. The cumulative impact of high discharge from large tributaries on the middle Changjiang increase flood severity with distance downstream. Also, Changjiang-lake interaction is affected by decreasing volume of Poyang and Dongting Lakes that occurred during the past few decades. These are the largest freshwater lakes in China. As a result of reduced floodwater storage capacity during summer high discharge periods, tributaries flow into the lakes with a higher base level than previously occurred. Instead of Changjiang back flowing into the lakes as previously expected during major floods, high Changjiang discharge occurs at the same time as high tributary discharge that increases peak river stage.

show abstract

Flood Control Capacity of the Three Gorges Project for Different Frequency Floods

Cited by 11 publications

References 8 publications

Are global influences of cascade dams affecting river water temperature and fish ecology?

Are global influences of cascade dams affecting river water temperature and fish ecology?

Rationality Research on Pumping Station Location Based on MIKE Model: A Case Study of the Wanfu River Re-Navigation Project

Severe flood probability on the middle Changjiang (Yangtze River) after completion of the Three Gorges Dam

Contact Info

Product

Resources

About