Spatial distribution and formation mechanism of aeolian sand in the middle reaches of the Yarlung Zangbo River

doi:10.1007/s11629-019-5509-5

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2019 > Vol16 No.9

	Spatial distribution and formation mechanism of aeolian sand in the middle reaches of the Yarlung Zangbo River
	Liu Yong; Wang Yun-sheng; Shen Tong
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2019
卷号	16 期号:9 页码:1987-2000
关键词	Aeolian processes Remote sensing interpretation Scanning electron microscopy X-ray diffraction Particle size distribution Glacial winds Cyclonic vortexes
ISSN号	1672-6316
DOI	10.1007/s11629-019-5509-5
文献子类	Article
英文摘要	Aeolian sand landforms in the Yarlung Zangbo River (YZR) valley are a special type of aeolian landform that has attracted the attention of many scholars. However, the spatial distribution as well as the formation mechanism of aeolian sand has rarely been reported with integrated studies. In this paper, for remote sensing interpretation, scanning electron microscopy (SEM), X-ray diffraction (XRD) and particle size distribution (PSD) methods were used to analyze the spatial distribution and the deposition characteristics of aeolian sand. Combined with wind data and topography, the main driving factors and the formation mechanism of aeolian sand landforms were also examined. In the middle reaches of the YZR valley, there is a total of 2324.43 km(2) of aeolian sand, especially on the north bank of the wide valleys. In different wide valleys, the aeolian sand landforms exhibit a decreasing trend from the upstream to the downstream regions in both the area and expansion rate of aeolian sand. The cyclonic vortexes generated by the westerly winds and glacial winds are the main driving factors for transporting alluvial sand to the riverbank areas to form aeolian dunes. There are three main types of sand dunes in the river valley: climbing dunes, lee dunes and circumfluent dunes. Climbing dunes and lee dunes are mostly located west of the Jiacha Gorge, and the circumfluent dunes are mostly located east of the Jiacha Gorge.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000485301000001
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46567]
专题	Journal of Mountain Science_Journal of Mountain Science-2019_Vol16 No.9
推荐引用方式 GB/T 7714	Liu Yong,Wang Yun-sheng,Shen Tong. Spatial distribution and formation mechanism of aeolian sand in the middle reaches of the Yarlung Zangbo River[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(9):1987-2000.
APA	Liu Yong,Wang Yun-sheng,&Shen Tong.(2019).Spatial distribution and formation mechanism of aeolian sand in the middle reaches of the Yarlung Zangbo River.JOURNAL OF MOUNTAIN SCIENCE,16(9),1987-2000.
MLA	Liu Yong,et al."Spatial distribution and formation mechanism of aeolian sand in the middle reaches of the Yarlung Zangbo River".JOURNAL OF MOUNTAIN SCIENCE 16.9(2019):1987-2000.