干旱区生态环境知识资源中心(Arid): Hydrothermal Effects of Freeze-Thaw in the Taklimakan Desert

Arid

DOI	10.3390/su13031292
	Hydrothermal Effects of Freeze-Thaw in the Taklimakan Desert
	Xinchun, Liu; Yongde, Kang; Hongna, Chen; Hui, Lu
通讯作者	Lu, H (corresponding author), Guangxi Normal Univ, Coll Environm & Resources, Key Lab Ecol Rare & Endangered Species & Environm, Guilin 541004, Peoples R China.
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2021
卷号	13 期号:3
英文摘要	The Taklimakan Desert, also known as the Sea of Death, is the largest desert in China and also the world's second largest remote desert. The road crossing the Taklimakan Desert is the longest desert road in the world and has been the center of the Silk Road since ancient times. Based on field observation data (November 2013 to May 2014) collected from the Tazhong and Xiaotang stations, we studied the interannual and diurnal variations of soil temperature, soil moisture content, and surface heat fluxes during different freezing and thawing periods. The annual and daily changes of soil temperature, soil moisture content, and surface energy fluxes at different freezing and thawing stages were analyzed. We illustrated the coupling relationship between water and heat in freezing-thawing soil in the Taklimakan Desert. We established a coupling model of soil water and heat during freezing and thawing. During the soil freezing period, the soil temperatures at different depths generally trended downward. The temperature difference between the Tazhong station and the Xiaotang station was 4 similar to 8.5 degrees C. The freezing time of soil at 20 cm depth occurred about 11 days after that at 10 cm depth. The effect of ambient temperature on soil temperature gradually weakened with the increase of soil depth. With the occurrence of the soil freezing process, the initial soil moisture contents at 5 cm, 10 cm, 20 cm, and 40 cm depths at the Xiaotang station were 6%, 10%, 29%, and 59%, respectively, and those at the Tazhong station were 5%, 3.6%, 4.4%, and 5.8%, respectively. As the ambient temperature decreased, the freezing front continued to move downward and the liquid soil water content at each depth decreased. The desert highway is closely related to the economic development and prosperity of southern Xinjiang. Therefore, it is important to maintain and inspect the safety and applicability of freeze-thaw zones and avoid casualties from vehicles and personnel.
英文关键词	seasonally frozen soil soil moisture soil temperature hydrothermal condition
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000615648100001
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348232
作者单位	[Xinchun, Liu] China Meteorol Adm, Key Lab Tree Ring Phys & Chem Res, Urumqi 830002, Peoples R China; [Yongde, Kang] Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg China, Sch ofWater Resources & Hydroelect Engn, Xian 710048, Peoples R China; [Hongna, Chen] Urumqi Environm Monitoring Ctr, Xinjiang Environm Monitoring Stn, Urumqi 830001, Peoples R China; [Hui, Lu] Guangxi Normal Univ, Coll Environm & Resources, Key Lab Ecol Rare & Endangered Species & Environm, Guilin 541004, Peoples R China
推荐引用方式 GB/T 7714	Xinchun, Liu,Yongde, Kang,Hongna, Chen,et al. Hydrothermal Effects of Freeze-Thaw in the Taklimakan Desert[J],2021,13(3).
APA	Xinchun, Liu,Yongde, Kang,Hongna, Chen,&Hui, Lu.(2021).Hydrothermal Effects of Freeze-Thaw in the Taklimakan Desert.SUSTAINABILITY,13(3).
MLA	Xinchun, Liu,et al."Hydrothermal Effects of Freeze-Thaw in the Taklimakan Desert".SUSTAINABILITY 13.3(2021).