Response of hydrothermal activity in different types of soil at ground surface to rainfall in permafrost region

doi:10.16285/j.rsm.2019.0297

IR > 土木工程学院

	Response of hydrothermal activity in different types of soil at ground surface to rainfall in permafrost region
	Zhang Ming-li1,2,3 ; Wen Zhi 2; Dong Jian-hua1 ; Wang De-kai 3; Yue Guo-dong 1; Wang Bin1 ; Gao Qiang 2
	2020-05-11
发表期刊	Yantu Lixue/Rock and Soil Mechanics
ISSN	10007598
卷号	41 期号:5 页码:1549-1559
摘要	In order to understand the hydrothermal activity mechanism of active layers to rainfall in permafrost regions caused by humidification of climate, the differences of ground surface energy balance and hydrothermal activity in different types of shallow soil with the consideration of rainfall were discussed. Based on the meteorological data in 2013 observed at Beiluhe observation station of Tibet Plateau, three types of shallow ground soil (i.e., sandy soil, sandy loam and silty clay) were selected to compare the differences in the water content and energy balance at the ground surface, dynamic processes of water and energy transport in active layers and coupling mechanism under rainfall condition in the plateau using a coupled water-vapor-heat transport model. The results show that the increase of soil particle size leads to the increase of surface net radiation and latent heat of evaporation, but the decrease of soil heat flux. The difference of surface energy balance, especially the sensible heat flux and latent heat of evaporation, are larger in the warm season but smaller in the cold season. The liquid water transport under hydraulic gradient and the water-vapor transport under thermal gradient are obvious as the particle size in soil increases. However, the water-vapor flux under thermal gradient increases but the liquid water flux under hydraulic potential gradient decreases. As a result, the water content in shallow soil decreases accordingly but it increases slightly at the depth of 25 ~75 cm. Moreover, with the increase of soil particle size, the thermal conductivity of soil, convective heat transfer under rainfall and surface evaporation increase, but the soil heat conduction flux and soil temperature gradient decrease. Thus, soil temperature in sandy soil is much higher than that of sandy loam and silty clay at the same depth. The permafrost table declines with the increase of the thickness of active layer, which is unfavourable to permafrost stability. The results can provide theoretical reference for stability prediction and protection of permafrost caused by humidification of climate. © 2020, Science Press. All right reserved.
关键词	Atmospheric movements Energy balance Evaporation Heat conduction Heat flux Interfacial energy Latent heat Particle size Permafrost Rain Sand Soil conditioners Thermal conductivity Thermal gradients Water vapor Convective heat transfer Heat conduction flux Heat transport model Hydrothermal activity Liquid water transports Soil temperature gradient Stability prediction Water vapor transport
DOI	10.16285/j.rsm.2019.0297
收录类别	EI ; ESCI
语种	中文
WOS研究方向	Engineering
WOS类目	Engineering, Geological
WOS记录号	WOS:000557856000010
出版者	Academia Sinica
EI入藏号	20203108986681
EI主题词	Heat convection
EI分类号	443.1 Atmospheric Properties ; 443.3 Precipitation ; 483.1 Soils and Soil Mechanics ; 641.1 Thermodynamics ; 641.2 Heat Transfer ; 802.3 Chemical Operations ; 931 Classical Physics ; Quantum Theory ; Relativity
来源库	Compendex
分类代码	443.1 Atmospheric Properties - 443.3 Precipitation - 483.1 Soils and Soil Mechanics - 641.1 Thermodynamics - 641.2 Heat Transfer - 802.3 Chemical Operations - 931 Classical Physics; Quantum Theory; Relativity
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/115558
专题	土木工程学院机电工程学院
通讯作者	Zhang Ming-li
作者单位	1.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou 730050, Gansu, Peoples R China; 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; 3.Gansu Acad Sci, Geol Hazards Prevent Inst, Lanzhou 730000, Gansu, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Zhang Ming-li,Wen Zhi,Dong Jian-hua,et al. Response of hydrothermal activity in different types of soil at ground surface to rainfall in permafrost region[J]. Yantu Lixue/Rock and Soil Mechanics,2020,41(5):1549-1559.
APA	Zhang Ming-li.,Wen Zhi.,Dong Jian-hua.,Wang De-kai.,Yue Guo-dong.,...&Gao Qiang.(2020).Response of hydrothermal activity in different types of soil at ground surface to rainfall in permafrost region.Yantu Lixue/Rock and Soil Mechanics,41(5),1549-1559.
MLA	Zhang Ming-li,et al."Response of hydrothermal activity in different types of soil at ground surface to rainfall in permafrost region".Yantu Lixue/Rock and Soil Mechanics 41.5(2020):1549-1559.