干旱区生态环境知识资源中心(Arid): Monitoring and modeling the coupled movement of water, vapor, and energy in arid areas

Arid

DOI	10.1016/j.jhydrol.2020.125528
	Monitoring and modeling the coupled movement of water, vapor, and energy in arid areas
	Zheng, Ce; Simunek, Jiri; Lu, Yudong; Liu, Xiuhua; Shi, Changchun; Li, Huanhuan
通讯作者	Liu, XH (corresponding author), Changan Univ, Sch Water & Environm, Xian 710064, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2020
卷号	590
英文摘要	In arid areas, vapor flow has been recognized to contribute significantly to the mass and energy transfers and to play a critical role in maintaining surface vegetation and ecosystems. To better understand the continuous spatial and temporal variations in liquid water and water vapor contents under different climatic conditions, soil water contents, temperatures, and micrometeorological variables were observed in-situ in the Mu Us Desert of northwestern China. The collected data were then used to calibrate and validate the Hydrus-1D model simulating either the coupled movement of water, vapor, and energy or only isothermal water flow in soils (the latter as a reference). The results of the coupled model were not only in better agreement with observed data, but also advanced our understanding of underlying mechanisms of soil water flow. For the coupled model, the isothermal liquid flux was the most significant component of the total water flux. Three diurnal stages were identified for thermal liquid and vapor fluxes on dry days, while the vapor flux became almost negligible during rainfall events. The results indicate that isothermal liquid, thermal liquid, and thermal vapor fluxes should be considered simultaneously when evaluating soil water flow in arid regions, while the isothermal vapor flux can be neglected. Vapor flow contributed, on average, about 13% of the total water flux in the uppermost soil layer during the analyzed period at the study area, and this ratio often exceeded 20%.
英文关键词	Vadose zone Liquid water flow Vapor movement Hydrus-1D Arid region
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000599754500226
WOS关键词	LIQUID WATER ; HEAT-TRANSPORT ; HYDRAULIC CONDUCTIVITY ; SOIL ; EVAPORATION ; SIMULATION ; DESERT ; FLOW ; DYNAMICS ; ZONE
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348998
作者单位	[Zheng, Ce; Lu, Yudong; Liu, Xiuhua; Li, Huanhuan] Changan Univ, Sch Water & Environm, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Minist Educ, Xian 710064, Peoples R China; [Zheng, Ce; Simunek, Jiri] Univ Calif Riverside, Dept Environm Sci, Riverside, CA 92521 USA; [Liu, Xiuhua] Changan Univ, Shaanxi Key Lab Land Consolidat, Xian 710064, Peoples R China; [Shi, Changchun] China State Long Term Observat & Res Stn Mu Us De, Yulin 719000, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Ce,Simunek, Jiri,Lu, Yudong,et al. Monitoring and modeling the coupled movement of water, vapor, and energy in arid areas[J],2020,590.
APA	Zheng, Ce,Simunek, Jiri,Lu, Yudong,Liu, Xiuhua,Shi, Changchun,&Li, Huanhuan.(2020).Monitoring and modeling the coupled movement of water, vapor, and energy in arid areas.JOURNAL OF HYDROLOGY,590.
MLA	Zheng, Ce,et al."Monitoring and modeling the coupled movement of water, vapor, and energy in arid areas".JOURNAL OF HYDROLOGY 590(2020).