scholarly journals The Dynamic Changes in the Storage of the Danjiangkou Reservoir and the Influence of the South-North Water Transfer Project

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Hai Liu ◽  
Jie Yin ◽  
Lian Feng
Keyword(s):  
Water Transfer ◽  
The South ◽  
Dynamic Changes ◽  
Danjiangkou Reservoir ◽  
North Water

Multi-year optimal operation strategy of Danjiangkou Reservoir after dam heightening for the middle route of the south–north water transfer project

2016 ◽  
Vol 16 (4) ◽  
pp. 961-970 ◽  
Author(s):  
Jijian Lian ◽  
Xiaozhong Sun ◽  
Chao Ma
Keyword(s):  
Flood Control ◽  
Control Level ◽  
Influence Factors ◽  
Northern China ◽  
Optimal Operation ◽  
Water Transfer ◽  
The South ◽  
Danjiangkou Reservoir ◽  
Operation Rules ◽  
North Water

The middle route of the south–north water transfer project (SNWTP) was built to relieve the pressure of increasing water demand in northern China. Serving as one of the major storage systems, optimal operation rules should be proposed promptly for Danjiangkou Reservoir, completed by a heightening project. In this paper, in order to seek out the optimal operation rules for Danjiangkou Reservoir, a multi-objective optimal operation model is developed, considering the inflow uncertainty, multi-year regulation cycle and water supply for the SNWTP. Three evaluation indexes (hydropower generation, water impoundment condition and shortage index) are adopted to assess the impacts of three influence factors (starting regulation level (SRL), inflow condition and flood control level) on Danjiangkou Reservoir operations. Finally, some critical operation strategies for Danjiangkou Reservoir are proposed. The results show that the optimal SRL for Danjiangkou Reservoir is 158 m and the recommended range of the water level at the end of the first year varies between 162–166 m (very wet), 164–166 m (wet), and 162–164 m (normal) on the basis of setting 158 m as the SRL.

scholarly journals Detecting Water Diversion Fingerprints in the Danjiangkou Reservoir from Satellite Gravimetry and Altimetry Data

Sensors ◽  
2019 ◽  
Vol 19 (16) ◽  
pp. 3510
Author(s):  
Nengfang Chao ◽  
Gang Chen ◽  
Zhicai Luo ◽  
Xiaoli Su ◽  
Zhengtao Wang ◽  
...  
Keyword(s):  
Water Level ◽  
Water Storage ◽  
Water Diversion ◽  
Spatiotemporal Variability ◽  
Spatiotemporal Pattern ◽  
The South ◽  
Danjiangkou Reservoir ◽  
Water Diversion Project ◽  
North Water ◽  
And Storage

The Danjiangkou Reservoir (DJKR) is the freshwater source for the Middle Route of the South-to-North Water Diversion Project in China, and its water level and storage changes are important for water resource management. To maximize the potential capacity of the Gravity Recovery and Climate Experiment (GRACE) mission, an improved Lagrange multiplier method (ILMM) is first proposed to detect terrestrial water storage anomalies (TWSA) in the small-scale basin (DJKR). Moreover, for the first time, water diversion fingerprints are proposed to analyze the spatiotemporal pattern of the TWSA in the DJKR. The results indicate that the increased water level and storage signals due to the DJKR impoundment in 2014 can be effectively detected by using the ILMM, and they agree well with the results from altimetry and in situ data. Additionally, the water diversion fingerprints due to the DJKR impoundment are inferred, and describe the progression of spatiotemporal variability in water storage. The results show that water storage decreased in the upper Hanjiang River and increased in the DJKR as well as to the east of it during the period 2013–2015. Our research provides a scientific decision-making basis for monitoring the water resources of the DJKR and managing the South-to-North Water Diversion Project.

scholarly journals The Influence on Contaminant Bioavailability and Microbial Abundance of Lake Hongze by the South-to-North Water Diversion Project

2019 ◽  
Vol 16 (17) ◽  
pp. 3068
Author(s):  
Yu Yao ◽  
Peifang Wang ◽  
Chao Wang
Keyword(s):  
Environmental Factors ◽  
High Throughput Sequencing ◽  
Alpha Diversity ◽  
Northern China ◽  
Water Transfer ◽  
The Other ◽  
Water Diversion ◽  
Microbial Abundance ◽  
The South ◽  
North Water

The world famous South-to-North Water Transfer Project was built to alleviate serious water shortages in northern China. Considering that lake Hongze is an important freshwater lake in this region, analyzing the influence of water diversion on typical contaminant bioavailability and microbial abundance could aid in achieving a good overall understanding of hydrodynamic variation. Accordingly, in situ high-resolution measurements of diffusive gradients in thin films (DGT) and next-generation high-throughput sequencing were combined in order to survey Lake Hongze and determine the relationship between environmental factors and microbial communities. The DGT method effectively obtained more than the 85% of bioavailable concentrations of the corresponding contaminants; the results showed that labile P, S, Fe, As, and Hg concentrations were higher in areas influenced by water transfer. Moreover, the relative abundance and alpha diversity of the sampling sites distributed in the water transfer area differed significantly from other sites. The pH, conductivity, and labile Mn, As, and P were shown to be the primary environmental factors affecting the abundance and diversity of microbes. With the exception of bioturbation-affected sites controlled by labile Mn and pH, sites distributed in the water diversion area were most affected by As and conductivity, with little spatial discrepancy. Furthermore, site 2, with higher bioturbation abundance, and site 10, with stronger hydrodynamics, had low alpha diversity compared to the other sites. Consequently, the bioavailability of typical contaminants such as P, S, As, Hg, Fe, Mg, Cd, Pb, and Mn, as well as the diversity and abundance of microbial in the sites influenced by the water diversion, were significantly different to the other sites. Thus, the impacts of the South-to-North Water Transfer Project on participant lakes were non-negligible overall in the investigation.

Study on Jiping Canal Water Line of South-to-North Water Transfer Project

2014 ◽  
Vol 919-921 ◽  
pp. 1248-1251
Author(s):  
Xiao Cheng Su ◽  
Zhi Liu ◽  
Xiao Yun Wang
Keyword(s):  
Water Transfer ◽  
Water Diversion ◽  
Hydraulic Calculation ◽  
Practical Significance ◽  
Normal Operation ◽  
The South ◽  
Canal Water ◽  
Water Diversion Project ◽  
North Water ◽  
Working Out

The South-to-North Water Transfer Project is a cross century water diversion project. So it is very important to ensure its normal operation. The hydraulic calculation of Jiping Canal of the South-to-North Water Transfer Project is carried out in this paper, working out cross section, the profile and the X-Y-Z perspective plot of Jiping Canal respectively. An analysis of the canal stability enables us to get the condition in which the canal is stable, which will provide strong technical support for the design and construction of the canal. Therefore, the analysis has important practical significance. The study will be effective guidance on the normal operation of Jiping Canal of South-to-North Water Transfer Project.

Analysis on the Ecological Compensation in China's Water Source Protection Zones: A Case Study of the Middle Route Water Source Area of the South-to-North Water Transfer Project

2012 ◽  
Vol 524-527 ◽  
pp. 3005-3020 ◽  
Author(s):  
Chun Xiang Liu
Keyword(s):  
Environmental Protection ◽  
Local Development ◽  
Source Area ◽  
Water Source ◽  
Water Transfer ◽  
The South ◽  
Compensation Policy ◽  
Ecological Compensation ◽  
North Water ◽  
Evaluation Mechanism

Having become the tool to resolve the watershed environmental protection and local development contradictions, ecological compensation has been drawing increasing attention. Conflicts in environmental protection and regional development of the middle route water source area of the South-to-North Water Transfer Project urgently need to be resolved by the ecological compensation. However, the ecological compensation remains unsound yet. The author of this paper introduces the existing ecological compensation policy of the middle route water source area, analyzes main problems existing in ecological compensation policies in the middle route water source area, e.g. lack of legislative support for ecological compensation, insufficient researches on compensation standards, limited channel of funds and unsound evaluation mechanism and ultimately puts forward some suggestions on the improvement of ecological compensation policies of the water source area.

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