干旱区生态环境知识资源中心(Arid): Using spatial variations of grain size to reveal sediment transport in the Kumtagh Sand Sea, Northwest China

Arid

DOI	10.1016/j.aeolia.2020.100599
	Using spatial variations of grain size to reveal sediment transport in the Kumtagh Sand Sea, Northwest China
	Liang, Aimin; Dong, Zhibao; Qu, Jianjun; Su, Zhizhu; Wu, Bo; Zhang, Zhengcai; Qian, Guangqiang; Gao, Junliang; Pang, Yingjun; Yang, Zhuanling
通讯作者	Qu, JJ
来源期刊	AEOLIAN RESEARCH
ISSN	1875-9637
EISSN	2212-1684
出版年	2020
卷号	46
英文摘要	The identification of sediment transport processes is essential in understanding the accumulation and development of sand seas. However, only limited effort has been made to extract macroscale sediment transport information in aeolian science. In this study, we investigated grain-size variation to gain insight into large-scale sediment transport processes in the Kumtagh Sand Sea. Results suggest that grain-size variation is correlated to fluvial-aeolian interaction. In the central sand sea region, due to intermixed fluvial-aeolian controls, the downwind trend of grain size was significant except for the area surrounding the channel belt; but the grain-size trend in a downstream direction was not obvious. In the northeastern sand sea region, dune sand became progressively finer along a downwind direction, but sorting remained consistent. This phenomenon is ascribed to the fact that sand from upwind areas is mixed with local interdune sand. By combining evidence from dune patterns, grain sizes and mineral composition differences, we determined that sediment transport processes in the Kumtagh Sand Sea can be summarized as follows: Fluvial system transport sediments from the Altyn-Tagh Mountains to the sand sea, after which prevailing northerly winds subsequently rework these sediments and deliver them to downwind areas; meanwhile, sand from upwind areas is mixed with local sand in the northeastern sand sea region. Our findings provide insight into modern sand sea formation under the control of fluvial-aeolian interactions, while potentially offering further implications that can be used to explore paleogeographic process based on these modern processes.
英文关键词	Grain-size variation Interpolation Fluvial-aeolian interaction Transport process Kumtagh Sand Sea
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000564565800003
WOS关键词	FLUVIAL-AEOLIAN INTERACTIONS ; DUNE FIELD ; TREND ANALYSIS ; DESERT ; PROVENANCE ; PATHWAYS ; DEPOSITS ; PATTERN ; GEOMORPHOLOGY ; KALAHARI
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325929
作者单位	[Liang, Aimin; Qu, Jianjun; Zhang, Zhengcai; Qian, Guangqiang; Yang, Zhuanling] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resource, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China; [Liang, Aimin] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Dong, Zhibao] Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710062, Peoples R China; [Su, Zhizhu] Shanxi Univ, Sch Hist & Culture, Taiyuan 030006, Peoples R China; [Wu, Bo; Pang, Yingjun] Chinese Acad Forestry, Inst Desertificat, Beijing 100091, Peoples R China; [Gao, Junliang] Chinese Acad Forestry, Expt Ctr Desert Forestry, Dengkou 015200, Peoples R China
推荐引用方式 GB/T 7714	Liang, Aimin,Dong, Zhibao,Qu, Jianjun,et al. Using spatial variations of grain size to reveal sediment transport in the Kumtagh Sand Sea, Northwest China[J],2020,46.
APA	Liang, Aimin.,Dong, Zhibao.,Qu, Jianjun.,Su, Zhizhu.,Wu, Bo.,...&Yang, Zhuanling.(2020).Using spatial variations of grain size to reveal sediment transport in the Kumtagh Sand Sea, Northwest China.AEOLIAN RESEARCH,46.
MLA	Liang, Aimin,et al."Using spatial variations of grain size to reveal sediment transport in the Kumtagh Sand Sea, Northwest China".AEOLIAN RESEARCH 46(2020).