Modeling the Impact of Three Gorges Dam on the Cooling Energy Consumption of the Reservoir Cities

2014 ◽  
Vol 1065-1069 ◽  
pp. 3254-3259
Author(s):  
Min Wu ◽  
Wai Ching Tang ◽  
Yan Zhou ◽  
Shuo Chen ◽  
Guang Wei Chen ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Relative Humidity ◽  
Three Gorges Dam ◽  
Weather Data ◽  
Three Gorges ◽  
Hydraulic Power ◽  
Reservoir Area ◽  
The Impact

While the Three George Dam might help in utilizing hydraulic power, historic weather data showed that the Three George Dam has a serious impact on the relative humidity for cities in the reservoir area. We conclude that the cooling energy consumption in Chongqing may have increased about 31 per cent, provided that the Three George Dam had not been constructed.

scholarly journals The impact of the Three Gorges Dam on summer streamflow in the Yangtze River Basin

2019 ◽  
Vol 34 (3) ◽  
pp. 705-717
Author(s):  
Zhenkuan Su ◽  
Michelle Ho ◽  
Zhenchun Hao ◽  
Upmanu Lall ◽  
Xun Sun ◽  
...  
Keyword(s):  
River Basin ◽  
Yangtze River ◽  
Yangtze River Basin ◽  
Three Gorges Dam ◽  
Three Gorges ◽  
The Yangtze River ◽  
The Three Gorges ◽  
The Yangtze River Basin ◽  
The Impact ◽  
The Three Gorges Dam

The Discharge Outlets Layout Optimization of Typical River Section in the Three Gorges Reservoir Area

2014 ◽  
Vol 955-959 ◽  
pp. 3287-3294
Author(s):  
Zheng Wang ◽  
Ying Liu
Keyword(s):  
Water Quality ◽  
Three Gorges Reservoir ◽  
Three Gorges Reservoir Area ◽  
Three Gorges ◽  
Mixing Zone ◽  
Unit Load ◽  
Reservoir Area ◽  
The Three Gorges Reservoir ◽  
The Three Gorges ◽  
The Impact

To improve water quality and alleviate pollution in Changshou-Fuling section of the Three Gorges Reservoir Area, an analysis methodology of regional key discharge outlet based on hydrodynamic-water quality model was developed. The EFDC model was used to study the impact of different discharge outlets on the transport of contamination in the study area by using the concept of pollutant mixing zone and pollutant mixing zone per unit load. Model calibration was conducted using observed data in 2008. Results indicated that EFDC could perfectly simulate hydrodynamics characteristics and contaminant transport process. Calculated results of pollutant mixing zone per unit load showed that the discharge outlet location in Fuling is more reasonable than that in Changshou. This study provides useful information for optimization of discharge outlets location and prediction of pollutant mixing zone in the study area, which is important for the government to make water pollution control measures.

The impact of Three Gorges Dam on the downstream eco-hydrological environment and vegetation distribution of East Dongting Lake

Ecohydrology ◽  
2014 ◽  
Vol 8 (4) ◽  
pp. 738-746 ◽  
Author(s):  
Yong-hong Xie ◽  
Tang Yue ◽  
Chen Xin-sheng ◽  
Li Feng ◽  
Deng Zheng-miao
Keyword(s):  
Dongting Lake ◽  
Three Gorges Dam ◽  
Vegetation Distribution ◽  
Three Gorges ◽  
The Impact ◽  
Hydrological Environment

Soil erosion in the Three Gorges Reservoir area

Soil Research ◽  
2011 ◽  
Vol 49 (3) ◽  
pp. 212 ◽  
Author(s):  
Xibao Xu ◽  
Yan Tan ◽  
Guishan Yang ◽  
Hengpeng Li ◽  
Weizhong Su
Keyword(s):  
Soil Erosion ◽  
Three Gorges Reservoir ◽  
Storage Period ◽  
Three Gorges Reservoir Area ◽  
Three Gorges ◽  
Reservoir Area ◽  
Modis Ndvi ◽  
The Three Gorges Reservoir ◽  
The Three Gorges ◽  
The Impact

Spatial and temporal change in soil erosion in the Three Gorges Reservoir area since the water storage of the reservoir began filling to 135 m in 2003 is poorly understood. Using a modified soil erosion model, this study quantifies and analyses change in the extent and intensity of soil erosion in the region from 2000 to 2008. MODIS-NDVI remote sensing data (with 250 m spatial resolution) are used in the modelling and analysis of the study. The total amount, area, and intensity of soil erosion in the reservoir region presented a declining trend from 2000 to 2008. Yet there was an anomaly in the trend, in which extreme soil erosion occurred in 2003 and lasted until 2005. The average volume of soil erosion per year decreased by 4.10 × 106 t and the mean area of land experiencing soil erosion reduced by 1129.6 km2 from the pre-storage period (2000–02) to post-storage period II (2006–08). Land suffering soil erosion at high, very high, and severe levels mainly comprises forest and cropland on slopes with gradients ≥15° and is largely distributed in the eastern and south-western sections of the reservoir area. Land experiencing soil erosion at slight or moderate levels mainly involves cropland and forest on slopes with gradients ≥10° in the central section of the reservoir area. The impact of the Three Gorges Project on soil erosion since 2000 has been mainly mediated through three mechanisms: near-resettlement of rural and urban people; increased frequency and severity of geological hazards induced by rising storage of the reservoir; and implementation of ecological projects in the region. Through the former two mechanisms, soil erosion in the affected communities has been exacerbated, while the ongoing ecological projects appear to offset both the extent and intensity of soil erosion in the reservoir region. Other important factors influencing soil erosion include urban reconstruction and expansion, varying intensity of precipitation, and soil degradation.

scholarly journals Quantifying the impact of the Three Gorges Dam on the thermal dynamics of the Yangtze River

2018 ◽  
Vol 13 (5) ◽  
pp. 054016 ◽  
Author(s):  
Huayang Cai ◽  
Sebastiano Piccolroaz ◽  
Jingzheng Huang ◽  
Zhiyong Liu ◽  
Feng Liu ◽  
...  
Keyword(s):  
Yangtze River ◽  
Three Gorges Dam ◽  
Three Gorges ◽  
The Yangtze River ◽  
Thermal Dynamics ◽  
The Three Gorges ◽  
The Impact ◽  
The Three Gorges Dam

The impact of the Three Gorges Dam on the fate of metal contaminants across the river–ocean continuum

2020 ◽  
Vol 185 ◽  
pp. 116295
Author(s):  
Maodian Liu ◽  
Yipeng He ◽  
Zofia Baumann ◽  
Qianru Zhang ◽  
Xin Jing ◽  
...  
Keyword(s):  
Three Gorges Dam ◽  
Three Gorges ◽  
Metal Contaminants ◽  
The Three Gorges ◽  
The Impact ◽  
The Three Gorges Dam

Study on High Cutting Slopes with Horizontal Soft-Hard Strata in Three Gorges Reservoir Area

2010 ◽  
Vol 168-170 ◽  
pp. 2595-2601
Author(s):  
Guo Xiang Yang ◽  
Jin Yu Dong ◽  
Fa Quan Wu ◽  
Dong Wang ◽  
Ji Hong Yang
Keyword(s):  
Three Gorges Reservoir ◽  
Failure Modes ◽  
Three Gorges Reservoir Area ◽  
Three Gorges ◽  
Reservoir Area ◽  
Hard Rocks ◽  
Jurassic System ◽  
Wedge Sliding ◽  
Structural Surface ◽  
The Impact

High cutting slopes with nearly horizontal soft-hard alternant strata are widely distributed in three gorges reservoir area, the soft and hard rocks are mainly mud stone and sandstone of Jurassic system. Sliding failure of this kind of slope is also the main geo-hazards in this area. Firstly, this paper analyzed the impact of topography, water as well as the differential weathering and combination characteristics of soft and hard rocks etc. on the sliding failure of slopes; secondly, sliding failure modes of this kind of slope were classified into four types including circular sliding, sliding along the extroversion structural surface, sliding along the mudded intercalation and wedge sliding, they were analyzed combined with case study. And lastly, support methods against the certain failure mode were put forward. The research results are significant to the support and treatment of high cutting slopes in Three gorges area.

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