干旱区生态环境知识资源中心(Arid): Unified Soil Freezing Characteristic for Variably-Saturated Saline Soils

Arid

DOI	10.1029/2019WR026648
	Unified Soil Freezing Characteristic for Variably-Saturated Saline Soils
	Zhou, Jiazuo; Meng, Xiangchuan; Wei, Changfu; Pei, Wansheng
通讯作者	Zhou, JZ ; Wei, CF
来源期刊	WATER RESOURCES RESEARCH
ISSN	0043-1397
EISSN	1944-7973
出版年	2020
卷号	56 期号:7
英文摘要	Freezing and thawing of soil have a significant impact on the thermal-hydrological processes in cold regions. Freezing point and unfrozen water content are key variables characterizing the freezing and thawing of soil. The testing results show that unfrozen water content is independent of initial water content in nonsaline silt, based on which a unified model for a soil freezing characteristic curve (SFCC) is presented. The SFCC describes the relationship between unfrozen water content and temperature for variably-saturated saline soils. It is also demonstrated that the SFCC can describe the variation of soil freezing point with respect to water content and salt concentration. The SFCC model is validated by comparing the experimental data to the calculated result for unfrozen water content and freezing point in a variety of conditions. When the initial water content varies in saline soil, the SFCC changes with constant initial salt concentration, but it remains unchanged with constant gravimetric salt content. The SFCC model can be adopted in the simulation of thermal-hydrological processes in arid and saline lands and coastal regions. Finally, an example of thermal-hydrological processes was simulated with the new SFCC model to show the application of the presented model.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000556141400051
WOS关键词	UNFROZEN WATER-CONTENT ; COUPLED HEAT ; GROUNDWATER-FLOW ; POINT DEPRESSION ; FROZEN SOILS ; TRANSPORT ; MODEL ; THAW ; TEMPERATURE ; CURVE
WOS类目	Environmental Sciences ; Limnology ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325442
作者单位	[Zhou, Jiazuo; Wei, Changfu] Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China; [Meng, Xiangchuan; Wei, Changfu] Guilin Univ Technol, Coll Civil Engn & Architecture, Guangxi Key Lab New Energy & Bldg Energy Saving, Guilin, Peoples R China; [Pei, Wansheng] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Jiazuo,Meng, Xiangchuan,Wei, Changfu,et al. Unified Soil Freezing Characteristic for Variably-Saturated Saline Soils[J],2020,56(7).
APA	Zhou, Jiazuo,Meng, Xiangchuan,Wei, Changfu,&Pei, Wansheng.(2020).Unified Soil Freezing Characteristic for Variably-Saturated Saline Soils.WATER RESOURCES RESEARCH,56(7).
MLA	Zhou, Jiazuo,et al."Unified Soil Freezing Characteristic for Variably-Saturated Saline Soils".WATER RESOURCES RESEARCH 56.7(2020).