基于线性规划和MODFLOW耦合技术的灌区水资源优化配置研究

胡艳玲; 黄仲冬; 齐学斌; 张彦; 梁志杰; 赵志娟

Cite this article:	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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Study on Optimal Allocation of Water Resources in Irrigation District Based on Linear Programming and MODFLOW Coupling Technology
huyanling, huangzhongdong, qixuebin, zhangyan, liangzhijie, zhaozhijuan
farmland irrigation research institute
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;