气候变化领域集成服务门户(CCPortal): A Study on the Hydrothermal Regime of Aeolian Sand and the Underlying Soil in the Frozen Soil Zone on the Qinghai-Tibetan Plateau

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DOI	10.1016/j.agrformet.2020.108294
	A Study on the Hydrothermal Regime of Aeolian Sand and the Underlying Soil in the Frozen Soil Zone on the Qinghai-Tibetan Plateau
	Wang, Luyang; Jiang, Guanli; Fu, Ziteng; Liu, Yali; Gao, Siru; Zhao, Hongting; Wu, Qingbai
通讯作者	Wu, QB (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, 320 West Donggang Rd, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0168-1923
EISSN	1873-2240
卷号	298
英文摘要	The hydrothermal process within the aeolian sand layer on the Qinghai-Tibetan Plateau (QTP) plays a key role in understanding the interaction between desertification and underlying frozen soil. However, little is known about the hydrothermal dynamics of aeolian sand and underling soil layer in the frozen soil zone on the QTP. In this study, a sparse vegetation cover site and three aeolian sand cover sites with different sand thicknesses were established to study the hydrothermal dynamics within aeolian sand layer. The results show that the thickness of aeolian sand is critical in the soil hydrothermal process under sand cover. The increase in thickness of the aeolian sand layer resulted in an advance in the onset of the freezing and thawing of soil, and accelerated movement of the freezing and thawing front. In addition, the increase in sand thickness caused an increase in soil temperature during the thawing stage and the warming period of the thawed stage, whereas a decrease occurred during the cooling period of the thawed stage, the freezing stage and the frozen stage, which ultimately caused the enlargement of the annual range of ground temperature. Furthermore, in the study area, the actual evapotranspiration of sand-covered surface was larger than that of the naked surface. The water content also decreased with increasing sand thickness in different stages, which separately decreased the heat budget in both the warm and cold season because of the smaller thermal conductivity of aeolian sand with a lower water content. This study states that through the special hydrothermal process, have an adverse impact on the occurrence and formation of the frozen soil in the QTP.
关键词	ACTIVE-LAYER VEGETATION COVER PERMAFROST REGION SNOW COVER THERMAL REGIME COASTAL-PLAIN ALPINE MEADOW WATER IMPACTS DEGRADATION
英文关键词	desertification; aeolian sand; hydrothermal dynamic; heat budget; frozen soil
语种	英语
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000610797100016
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254128
作者单位	[Wang, Luyang; Jiang, Guanli; Fu, Ziteng; Liu, Yali; Gao, Siru; Zhao, Hongting; Wu, Qingbai] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; [Wang, Luyang; Fu, Ziteng; Liu, Yali; Zhao, Hongting; Wu, Qingbai] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wang, Luyang; Jiang, Guanli; Gao, Siru; Wu, Qingbai] Chinese Acad Sci, Beiluhe Observat Stn Frozen Soil Environm & Engn, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Luyang,Jiang, Guanli,Fu, Ziteng,et al. A Study on the Hydrothermal Regime of Aeolian Sand and the Underlying Soil in the Frozen Soil Zone on the Qinghai-Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2021,298.
APA	Wang, Luyang.,Jiang, Guanli.,Fu, Ziteng.,Liu, Yali.,Gao, Siru.,...&Wu, Qingbai.(2021).A Study on the Hydrothermal Regime of Aeolian Sand and the Underlying Soil in the Frozen Soil Zone on the Qinghai-Tibetan Plateau.AGRICULTURAL AND FOREST METEOROLOGY,298.
MLA	Wang, Luyang,et al."A Study on the Hydrothermal Regime of Aeolian Sand and the Underlying Soil in the Frozen Soil Zone on the Qinghai-Tibetan Plateau".AGRICULTURAL AND FOREST METEOROLOGY 298(2021).