| 引用本文: | 胡艳玲,黄仲冬,齐学斌,等.基于线性规划和MODFLOW耦合技术的灌区水资源优化配置研究[J].灌溉排水学报,2019,(12):-. |
| huyanling,huangzhongdong,qixuebin,et al.基于线性规划和MODFLOW耦合技术的灌区水资源优化配置研究[J].灌溉排水学报,2019,(12):-. |
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| 摘要: |
| 针对人民胜利渠灌区水资源分配不合理及灌区生态环境恶化问题,按照灌区地形地貌、工程类型和灌溉水源特点将灌区分成Ⅰ、Ⅱ、Ⅲ3个计算单元,基于线性规划方法和MODFLOW地下水数值模型对灌区各计算单元进行不同水文年水资源优化配置,并模拟优化配置后地下水位动态变化,确定了不同水文年灌区的水资源优化配置方案。优化结果表明：平水年计算单元Ⅰ区模拟地下水埋深相比初始埋深下降0.01米,水资源总量基本处于平衡状态；计算单元Ⅱ、Ⅲ区模拟地下水埋深相对于初始埋深分别上升了0.12m、0.15m；丰水年灌区计算单元Ⅰ、Ⅱ、Ⅲ区模拟地下水埋深相比初始埋深分别上升了0.1m、0.23m、0.3m；枯水年灌区计算单元Ⅰ、Ⅱ、Ⅲ区模拟地下水埋深相比初始埋深分别下降了0.17m、0.08m、0.04m。研究结果为实现灌区水资源的优化配置提供科学依据。 |
| 关键词: 井渠结合灌区；线性规划；MODFLOW；水资源优化配置； |
| DOI： |
| 分类号:TV21 |
| 基金项目:FIRI2016-10,FIRI2016-12 |
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| Study on Optimal Allocation of Water Resources in Irrigation District Based on Linear Programming and MODFLOW Coupling Technology |
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huyanling, huangzhongdong, qixuebin, zhangyan, liangzhijie, zhaozhijuan
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farmland irrigation research institute
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| Abstract: |
| In view of the unreasonable distribution of water resources and the deterioration of ecological environment in the people"s victory canal irrigation area, the irrigation area is divided into three calculation units( I, II and III) according to the landform, engineering type and irrigation water source characteristics of the irrigation area. Based on the linear programming method and MODFLOW groundwater numerical model, the optimal allocation of water resources is carried out for each calculation unit in the irrigation area in different hydrological years, and the dynamic change of groundwater level after optimal allocation is simulated, and the optimal allocation scheme of water resources is determined in irrigation districts in different hydrological years. The optimization results show that: Compared with the initial depth of groundwater, the simulated depth of groundwater decreased by 0.01 meters in Area I in the normal flowSyear, and the total amount of water resources was basically balanced. The simulated groundwater depth increased by 0.12m and 0.15 m relative to the initial depth in the calculation units II and III; The simulated groundwater depth respectively increased by 0.1m, 0.23m and 0.3m compared with the initial depth in the calculation units I, II and III of the irrigation area in rainy years; In dry years, the simulated groundwater depth in calculation units I, II and III of irrigation district decreased by 0.17m, 0.08m and 0.04m respectively compared with the initial depth. The results of the study provide scientific basis for the optimal operation of water resources in irrigation areas. |
| Key words: Well-canal irrigation area; Linear programming; MODFLOW; Optimal allocation of water resources; |
