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Integrated numerical model for irrigated area water resources management
Journal of Water & Climate Change ( IF 2.8 ) Pub Date : 2020-12-01 , DOI: 10.2166/wcc.2019.042
Aidi Huo 1 , Xiaofan Wang 1 , Yan Liang 2 , Cheng Jiang 1 , Xiaolu Zheng 1
Affiliation  

The likelihood of future global water shortages is increasing and further development of existing operational hydrologic models is needed to maintain sustainable development of the ecological environment and human health. In order to quantitatively describe the water balance factors and transformation relations, the objective of this article is to develop a distributed hydrologic model that is capable of simulating the surface water (SW) and groundwater (GW) in irrigation areas. The model can be used as a tool for evaluating the long-term effects of water resource management. By coupling the Soil and Water Assessment Tool (SWAT) and MODFLOW models, a comprehensive hydrological model integrating SW and GW is constructed. The hydrologic response units for the SWAT model are exchanged with cells in the MODFLOW model. Taking the Heihe River Basin as the study area, 10 years of historical data are used to conduct an extensive sensitivity analysis on model parameters. The developed model is run for a 40-year prediction period. The application of the developed coupling model shows that since the construction of the Heihe reservoir, the average GW level in the study area has declined by 6.05 m. The model can accurately simulate and predict the dynamic changes in SW and GW in the downstream irrigation area of Heihe River Basin and provide a scientific basis for water management in an irrigation district.



中文翻译:

灌区水资源管理综合数值模型

未来全球水资源短缺的可能性正在增加,需要进一步发展现有的业务水文模型以维持生态环境和人类健康的可持续发展。为了定量描述水平衡因子和转换关系,本文的目的是开发一种能够模拟灌溉区域的地表水(SW)和地下水(GW)的分布式水文模型。该模型可以用作评估水资源管理的长期影响的工具。通过结合土壤和水评估工具(SWAT)和MODFLOW模型,构建了一个综合了SW和GW的综合水文模型。SWAT模型的水文响应单位与MODFLOW模型中的单元交换。以黑河流域为研究区域,以10年的历史资料对模型参数进行了广泛的敏感性分析。开发的模型运行40年的预测期。所开发耦合模型的应用表明,自黑河水库建成以来,研究区的平均GW水平下降了6.05 m。该模型可以准确模拟和预测黑河流域下游灌区SW和GW的动态变化,为灌区的水管理提供科学依据。所开发耦合模型的应用表明,自黑河水库建成以来,研究区的平均GW水平下降了6.05 m。该模型可以准确模拟和预测黑河流域下游灌区SW和GW的动态变化,为灌区的水管理提供科学依据。所开发耦合模型的应用表明,自黑河水库建成以来,研究区的平均GW水平下降了6.05 m。该模型可以准确模拟和预测黑河流域下游灌区SW和GW的动态变化,为灌区的水管理提供科学依据。

更新日期:2020-12-16
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