气候变化领域集成服务门户(CCPortal): Aeolian sediment transport over the Gobi with high gravel coverage under extremely strong winds in the Hundred Miles windy area along the Lanzhou-Xinjiang High-Speed Railway

CCPortal

DOI	10.1016/j.jweia.2021.104857
	Aeolian sediment transport over the Gobi with high gravel coverage under extremely strong winds in the Hundred Miles windy area along the Lanzhou-Xinjiang High-Speed Railway
	Wang, Tao; Qu, Jianjun; Tan, Lihai; Gao, Yang; Zhang, Kai; Shi, Boyuan
通讯作者	Tan, LH (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China.
发表日期	2022
ISSN	0167-6105
EISSN	1872-8197
卷号	220
英文摘要	Aeolian transport driven by extremely strong winds over Gobi areas with high gravel coverage remains poorly understood. In this study, field observations of aeolian transport over a Gobi surface with 70-94% gravel coverage were performed in the Hundred Miles windy area along the Lanzhou-Xinjiang High-Speed Railway. The results reveal that during a typical transport event, approximately continuous saltation can occur in the most intense transport period under such high gravel coverage, and the average saltation layer height (0.58 +/- 0.12 m) is approximately 6 times larger than that over sand surfaces. The annual sediment transport rate reached 46.31 kg m(-1).a(-1) under an annual sand drift potential of 705.14 vector units (VU), indicating that wind-blown sand activities are still strong over Gobi surfaces with high gravel coverage in extremely strong windy areas. Furthermore, the grain size distribution indicates that the saltation height of sand particles can reach 2 m, and the cumulative frequency of the sediment flux density indicates that 99% of sand is transported within 0-3 m of the surface. Our findings suggest that the height of sand fences should be raised from the present 2 m-3 m, which can trap more transported sand particles.
关键词	MOGAO GROTTOES SAND FENCES SALTATION ROUGHNESS FIELD FLUX EROSION SCALE ATOP DRAG
英文关键词	Gobi; Windy area; Aeolian saltation; Sediment transport quantity; Wind-blown sand control
语种	英语
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Civil ; Mechanics
WOS记录号	WOS:000724790100001
来源期刊	JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
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/254386
作者单位	[Wang, Tao; Qu, Jianjun; Tan, Lihai; Gao, Yang; Zhang, Kai] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China; [Wang, Tao; Qu, Jianjun; Tan, Lihai; Gao, Yang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Dunhuang Gobi & Desert Ecol & Environm Res Stn, Dunhuang 736200, Peoples R China; [Wang, Tao; Qu, Jianjun; Tan, Lihai; Gao, Yang] Res Stn Gobi Desert Ecol & Environm Dunhuang Gans, Dunhuang 736200, Peoples R China; [Qu, Jianjun] Ningxia Univ, Breeding Base State Key Lab Land Degradat & Ecol, Yinchuan 750021, Ningxia, Peoples R China; [Zhang, Kai; Shi, Boyuan] Lanzhou Jiaotong Univ, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Tao,Qu, Jianjun,Tan, Lihai,et al. Aeolian sediment transport over the Gobi with high gravel coverage under extremely strong winds in the Hundred Miles windy area along the Lanzhou-Xinjiang High-Speed Railway[J]. 中国科学院西北生态环境资源研究院,2022,220.
APA	Wang, Tao,Qu, Jianjun,Tan, Lihai,Gao, Yang,Zhang, Kai,&Shi, Boyuan.(2022).Aeolian sediment transport over the Gobi with high gravel coverage under extremely strong winds in the Hundred Miles windy area along the Lanzhou-Xinjiang High-Speed Railway.JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS,220.
MLA	Wang, Tao,et al."Aeolian sediment transport over the Gobi with high gravel coverage under extremely strong winds in the Hundred Miles windy area along the Lanzhou-Xinjiang High-Speed Railway".JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS 220(2022).