| 引用本文: | 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,2022,41(8):30-38. |
| 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,2022,41(8):30-38. |
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| 摘要: |
| 【目的】有效提高灌区水资源利用率。【方法】以实现灌区系统整体效益最大化为目的，满足冬小麦和夏玉米2种作物需水为前提，构建了区间两阶段模糊随机规划模型（TS-FSPM），对泾惠渠灌区地下水和地表水的联合利用进行优化配置。【结果】①在25%、50%、75%水平年，冬小麦地表水最优配置水量分别为1.82?108~2.02?108 m3、1.90?108~2.10?108 m3、1.90?108~2.10?108 m3，地下水最优配置水量均为0.65?108 m3；夏玉米地表水最优配置水量均为0.21?108 m3，地下水最优配置水量分别为0.01?108~0.04?108 m3、0.03?108~0.1?108 m3、0.03?108~0.1?108 m3。与最优配置水量相比，在25%、50%、75%水平年，地表水应分别增引0.60?108~0.80?108 m3、0.75?108~0.95?108 m3、1.01?108~1.21?108 m3，地下水抽取量则分别增加0.17?108~0.24?108 m3、减少0.03?108~0.1?108 m3、减少0.20?108~0.23?108 m3。②在最优配置水量下，灌区整体最大收益为1 725.01?106~2 417.73?106元，比现状提高约14%。【结论】本文建立区间两阶段模糊随机规划模型适用于灌区水资源优化配置研究，为保障水资源高效利用和水生态安全，泾惠渠灌区应增加地表引水，减少地下水开采。 |
| 关键词: 水资源；优化配置；系统效益；灌区 |
| DOI：10.13522/j.cnki.ggps.2021605 |
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| Optimizing Allocation of Water Resources in Jinghuiqu Irrigation Area |
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ZHAO Zhiqiang, LIU Yan, CHEN Yu
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School of Water and Environment, Chang’an University, Xi’an 710054, China
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| Abstract: |
| 【Objective】For semi-arid areas that are lack of water, rational utilization of water resources for irrigation has become an important way to improve water resource management. The purpose of this paper is to propose an optimization method for improving water resource management for irrigations districts. 【Method】The optimization method is to maximize the overall benefits of the irrigation system and meet the demand of winter wheat and summer maize for water. We established an interval two-stage fuzzy stochastic programming model (TS-FSPM) to optimize the joint utilization of groundwater and surface water in the irrigation area. We applied the model to Jinghuiqu irrigation district as an demonstrating example.【Result】① Hydrologically, in 25%, 50% and 75% level-year, the optimal water allocation of surface water to the winter wheat was 1.82?108~2.02?108 m3, 1.90?108~2.10?108 m3 and 1.90?108~2.10?108 m3 respectively, and of the groundwater was 0.65?108 m3; the optimal surface water allocation to the summer maize was 0.21?108 m3, and of the groundwater was 0.01?108~0.04?108 m3, 0.03?108~0.1?108 m3 and 0.03?108~0.1?108 m3 respectively. Compared with the optimal water allocation, in the 25%, 50% and 75% hydrological level-year, the surface water allocation should be increased by 0.60?108~0.80?108 m3, 0.75?108~0.95?108 m3 and 1.01?108~1.21?108 m3 respectively, while the groundwater allocation should be increased by 0.17?108~0.24?108 m3, reduced by 0.03?108~0.1?108 m3 and 0.20?108~0.23?108 m3 respectively. ② Under the optimal water allocation, the overall maximum income of the irrigation area was 1725.01?106~2417.73 ?106 yuan, about 14% higher than current situation.【Conclusion】The TS-FSPM model established in this paper was suitable for studying optimal allocation of water resources in irrigation areas. For efficient utilization of water resources and ensuring 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 |
