scholarly journals After the Three Gorges Project to use the impact analysis by scouring and silting in Poyang Lake control engineering area

2019 ◽  
Vol 304 ◽  
pp. 022043
Author(s):  
Ping Gong ◽  
Min Wang
Keyword(s):  
Impact Analysis ◽  
Poyang Lake ◽  
Three Gorges Project ◽  
Three Gorges ◽  
Control Engineering ◽  
The Three Gorges ◽  
The Three Gorges Project ◽  
The Impact

Small mammal communities on beaches and lakeside farmland in the Poyang Lake region after the Three-Gorges Project

Mammalia ◽  
2018 ◽  
Vol 82 (5) ◽  
pp. 438-448 ◽  
Author(s):  
Nianhua Dai ◽  
Ping Lu ◽  
Meiwen Zhang ◽  
Guohua Zhang ◽  
Chen Zhang ◽  
...  
Keyword(s):  
Small Mammal ◽  
Dominant Species ◽  
Poyang Lake ◽  
Three Gorges Project ◽  
Three Gorges ◽  
The Three Gorges ◽  
Small Mammal Community ◽  
The Three Gorges Project ◽  
Mammal Community ◽  
The Impact

AbstractStudies around Dongting Lake have indicated that the Three Gorges Project (TGP) has had a large effect on the structure of the small mammal community; however, few studies have analyzed this around Poyang Lake. To understand the status of the small mammal community around Poyang Lake, the lakeside farmland and beaches were surveyed in 2015 and 2016. The results showed the overall trap success was 10.12% on farmland and 5.47% on lake beaches, with five species of Rodentia and one species of Soricomorpha. The density of the small mammal was high, especially in rice fields.Apodemus agrariusandRattus loseawere the dominant species, representing 49.59% and 47.68% of the species composition on farmland. The dominant species on the beach area wereA. agrarius(66.01%) andR. losea(28.76%). The species abundance and diversity indexes of the small mammal community on beaches were similar to those on farmland. The widespread presence ofA. agrarius,R. losea, andRattus norvegicuson the beaches indicates the farmland community had migrated to the beach area. In conclusion, it is important to elucidate the succession of the small mammal community inhabiting the lake beaches in downstream areas to quantify the impact of the TGP.

scholarly journals Effects of the Three Gorges Project on the Environment of Poyang Lake

2016 ◽  
Vol 25 (6) ◽  
pp. 2477-2490 ◽  
Author(s):  
Dayong Li ◽  
Xijun Lai ◽  
Zengchuan Dong ◽  
Xiaoli Luo
Keyword(s):  
Poyang Lake ◽  
Three Gorges Project ◽  
Three Gorges ◽  
The Three Gorges ◽  
The Three Gorges Project

scholarly journals Influence of the Three Gorges Project on the Water Resource Components of Poyang Lake Watershed: Observations from TRMM and GRACE

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Xiaobin Cai ◽  
Lian Feng ◽  
Yuxi Wang ◽  
Xiaoling Chen
Keyword(s):  
Surface Water ◽  
Water Exchange ◽  
Poyang Lake ◽  
Water Discharge ◽  
Lake Basin ◽  
Three Gorges Project ◽  
Three Gorges ◽  
The Three Gorges ◽  
Novel Approach ◽  
The Three Gorges Project

The Three Gorges Project (TGP) has received many criticisms about its potential effects on the changes in the downstream ecosystems. Poyang Lake is the largest body of water downstream of the TGP, and it is not immune to these changes. TRMM and GRACE data were introduced in this study to estimate river-lake water exchange, from which the hydrological responses of Poyang Lake could be identified. A significant decreasing trend of the runoff coefficient has been observed since 2003, resulting in 6.02 km3more water discharge from the lake into the Yangtze River than under normal conditions. No significant interannual changes occurred in the water level or local precipitation, and GRACE observations revealed that groundwater discharge appeared to be the most likely compensation for the water loss. A novel approach, namely, the groundwater abnormality index (GAI), was developed to depict the water exchange using GRACE and surface water observations. Lower than normal GAIs were found between 2003 and 2005, reaching a minimum of −29.26 in October 2003, corresponding to ten times of the mean GAI during 2006–2012, clearly indicating a significant water exchange in Poyang Lake Basin from groundwater to surface water after the TGP impoundment.

In Situ Tests on Creep Behavior of Rock Mass with Joint or Shearing Zone in Foundation of Large-Scale Hydroelectric Projects

2004 ◽  
Vol 261-263 ◽  
pp. 1097-1102 ◽  
Author(s):  
Jian Liu ◽  
Xia Ting Feng ◽  
Xiu Li Ding ◽  
Huo Ming Zhou
Keyword(s):  
Rock Mass ◽  
Creep Behavior ◽  
Large Scale ◽  
Time Dependent ◽  
Three Gorges Project ◽  
Three Gorges ◽  
The Three Gorges ◽  
The Three Gorges Project

The time-dependent behavior of rock mass, which is generally governed by joints and shearing zones, is of great significance for engineering design and prediction of long-term deformation and stability. In situ creep test is a more effective method than laboratory test in characterizing the creep behavior of rock mass with joint or shearing zone due to the complexity of field conditions. A series of in situ creep tests on granite with joint at the shiplock area of the Three-Gorges Project and basalt with shearing zone at the right abutment of the Xiluodu Project were performed in this study. Based on the test results, the stress-displacement-time responses of the joints and basalt are analyzed, and their time-dependent constitutive model and model coefficients are given, which is crucial for the design to prevent the creep deformations of rock masses from causing the failure of the operation of the shiplock gate at the Three-Gorges Project and long-term stability of the Xiluodu arc dam.

scholarly journals How the Three Gorges Project (TGP) affects local precipitation

2021 ◽  
Author(s):  
Qin Li ◽  
Yulong Zhong ◽  
Xiuguo Liu ◽  
Mengmeng Wang ◽  
Manxing Shi
Keyword(s):  
Three Gorges Project ◽  
Three Gorges ◽  
The Three Gorges ◽  
The Three Gorges Project
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