Impacts of Inter-Basin Water Transfer Projects on Optimal Water Resources Allocation in the Hanjiang River Basin, China

被引:18
|
作者
Tian, Jing [1 ]
Liu, Dedi [1 ]
Guo, Shenglian [1 ]
Pan, Zhengke [1 ]
Hong, Xingjun [2 ]
机构
[1] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Hubei, Peoples R China
[2] Changjiang Inst Survey Planning Design & Res, Wuhan 430010, Hubei, Peoples R China
基金
中国国家自然科学基金;
关键词
water transfer projects; water resources allocation; NSGA-II; reliability; vulnerability; resilience; RELIABILITY; MANAGEMENT; VULNERABILITY; OPTIMIZATION; RESERVOIR; MODEL; RESILIENCE; DIVERSION; ALGORITHM; OPERATION;
D O I
10.3390/su11072044
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Inter-basin water transfer project is an effective engineering countermeasure to alleviate the pressure of water supply in water-deficient areas and balance the uneven distribution of water resources. To assess the impacts of inter-basin water transfer projects on optimal water resources allocation, an integrated water resources management framework is proposed, and is applied to the middle and lower reaches of the Hanjiang River Basin in China. Firstly, future water demands are analyzed as inputs. Then, a multi-objective water resources allocation model is formulated mitigating the negative impacts of water transfer projects on downstream water quantity and quality by using the non-dominated sorting genetic algorithm-II (NSGA-II). Finally, the indicators of water supply reliability, vulnerability and resilience are evaluated under different scenarios of inter-basin water transfer projects. The results indicate that: (1) the reliability and resilience of the water donor system will be gradually reduced while the vulnerability will be increased with the expansion of water transfer projects and the increase of water demand, (2) water supply risk is likely to increase in all zones (because zones at the boundary cannot obtain sufficient water due to limitations of local inflow and reservoir operation, while the amount of water available in the zones along the mainstream river is directly decreased by the water transfer projects), (3) more water supply measures and compensation measures will need to be implemented in the water donor areas. The framework proposed in this study to evaluate the comprehensive impact of inter-basin water transfer projects is conducive to water resources management.
引用
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页数:19
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