The study of irrigation surface and ground water conjunctive use based on coupled model
文献类型: 外文期刊
第一作者: Jia, Y. H.
作者: Jia, Y. H.;Jia, Y. H.;Huang, X. Q.;Li, J. S.;Feng, J. J.;Sun, H.
作者机构:
关键词: Surface and groundwater for irrigation;optimization;coupled mode;irrigation management
期刊名称:WATER RESOURCES AND ENVIRONMENT
ISSN:
年卷期: 2016 年
页码:
收录情况: SCI
摘要: This paper proposes a new method to optimize the allocation of water in irrigation districts. We combine a traditional optimization method and a distributed hydrological model by considering the spatial difference in the crops, hydrogeology parameters (K, mu, M), rainfall, and the irrigation institution in various stages of crop growth. Compared with traditional optimization methods, the advantages of our method include: the number of optimization variables can be selected for initialization, a district irrigation manager is instated to improve the optimization accuracy of optimization, and the optimization of water allocation in irrigation districts is simplified. The decision support system for optimizing the allocation of water has a friendly interface, a high computational efficiency and is also transplantable and universal. The results of a case study have shown that the irrigation cost was reduced by 0.74 million Yuan per year. The minimum groundwater depth increased by 0.352m and the maximum groundwater depth decreased by 0.078 m. Our method provides a novel approach for spatial and temporal allocation of water in irrigation districts.
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