气候变化领域集成服务门户(CCPortal): A unique vadose zone model for shallow aquifers: The Hetao irrigation district; China

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DOI	10.5194/hess-23-3097-2019
	A unique vadose zone model for shallow aquifers: The Hetao irrigation district; China
	Liu Z.; Wang X.; Huo Z.; Siert Steenhuis T.
发表日期	2019
ISSN	1027-5606
起始页码	3097
结束页码	3115
卷号	23 期号:7
英文摘要	Rapid population growth is increasing pressure on the world water resources. Agriculture will require crops to be grown with less water. This is especially the case for the closed Yellow River basin, necessitating a better understanding of the fate of irrigation water in the soil. In this paper, we report on a field experiment and develop a physically based model for the shallow groundwater in the Hetao irrigation district in Inner Mongolia, in the arid middle reaches of the Yellow River. Unlike other approaches, this model recognizes that field capacity is reached when the matric potential is equal to the height above the groundwater table and not by a limiting soil conductivity. The field experiment was carried out in 2016 and 2017. Daily moisture contents at five depths in the top 90 cm and groundwater table depths were measured in two fields with a corn crop. The data collected were used for model calibration and validation. The calibration and validation results show that the model-simulated soil moisture and groundwater depth fitted well. The model can be used in areas with shallow groundwater to optimize irrigation water use and minimize tailwater losses. © 2019 Author(s).
语种	英语
scopus关键词	Aquifers; Crops; Hydrogeology; Irrigation; Population statistics; Soil moisture; Water supply; Calibration and validations; Groundwater table depth; Hetao irrigation districts; Irrigation water use; Model calibration and validation; Physically based modeling; Rapid population growth; Vadose zone modeling; Groundwater resources; aquifer; field capacity; groundwater; matric potential; river basin; soil moisture; vadose zone; water table; China; Hetao; Nei Monggol; Yellow River; Zea mays
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159640
作者单位	Liu, Z., Center for Agricultural Water Research in China, China Agricultural University, Beijing, 100083, China, Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, United States; Wang, X., Center for Agricultural Water Research in China, China Agricultural University, Beijing, 100083, China; Huo, Z., Center for Agricultural Water Research in China, China Agricultural University, Beijing, 100083, China; Siert Steenhuis, T., Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, United States
推荐引用方式 GB/T 7714	Liu Z.,Wang X.,Huo Z.,et al. A unique vadose zone model for shallow aquifers: The Hetao irrigation district; China[J],2019,23(7).
APA	Liu Z.,Wang X.,Huo Z.,&Siert Steenhuis T..(2019).A unique vadose zone model for shallow aquifers: The Hetao irrigation district; China.Hydrology and Earth System Sciences,23(7).
MLA	Liu Z.,et al."A unique vadose zone model for shallow aquifers: The Hetao irrigation district; China".Hydrology and Earth System Sciences 23.7(2019).