| Cite this article: | 赵志强,刘燕,陈宇.泾惠渠灌区水资源优化配置研究[J].灌溉排水学报,0,():-. |
| ZHAO Zhiqiang,LIU Yan,CHEN Yu.泾惠渠灌区水资源优化配置研究[J].灌溉排水学报,0,():-. |
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| Study on optimal allocation of water resources in Jinghuiqu Irrigation Area |
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ZHAO Zhiqiang1,2,3, LIU Yan1,2,3, CHEN Yu1,2,3
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1.Chang'2.'3.an University
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| Abstract: |
| 【Objective】In the semi-arid area with shortage of water resources, the rational utilization of water resources in the irrigation area has become one of the important ways to improve the local water resources system management, which can effectively improve the utilization rate of water resources in the irrigation area.【Method】In order to maximize the overall benefits of the irrigation system and meet the water requirements of winter wheat and summer maize, an interval two-stage fuzzy stochastic programming model (TS-FSPM) was established to optimize the joint utilization of groundwater and surface water in the irrigation area. 【Result】① In 25%, 50% and 75% level years, the optimal water allocation of surface water for winter wheat was 1.82-2.03?108 m3, 1.90-2.10?108 m3 and 1.90-2.10?108 m3 respectively, and the groundwater was 0.65?108 m3; The optimal surface water distribution of summer maize was 0.21?108 m3, and the groundwater was 0.01-0.04?108 m3, 0.03-0.1?108 m3 and 0.03-0.1?108 m3 respectively. Compared with the optimal water allocation, surface water should be increased by 0.52-0.72?108 m3, 0.75-0.95?108 m3 and 1.09-1.29?108 m3 respectively in 25%, 50% and 75% level years, while the groundwater should be increased by 0.15-0.18?108 m3, reduced by 0.03-0.1?108 m3 and 0.14-0.21?108 m3 respectively. ② Under the optimal water distribution, the overall maximum income of the irrigation area was 1725.01-2417.73 ?106 yuan, which was about 14% higher than the current situation.【Conclusion】The TS-FSPM established in this paper was suitable for the study of optimal allocation of water resources in irrigation areas. In order to ensure efficient utilization of water resources and water ecological security, Jinghuiqu Irrigation Area should increase surface water diversion and reduce groundwater exploitation. |
| Key words: water resources; optimal allocation; system benefit; irrigation area |
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