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	Relations between morphology, air flow, sand flux and particle size on transverse dunes, Taklimakan Sand Sea, China
	Wang, XM; Dong, ZB; Zhang, JW; Zhao, AG
刊名	EARTH SURFACE PROCESSES AND LANDFORMS
	2002-05-01
卷号	27期号:5页码:515-526
关键词	transverse dunes sand flux mean wind velocity particle size Taklimakan Sand Sea
ISSN号	0197-9337
DOI	10.1002/esp.324
通讯作者	Wang, XM()
英文摘要	Field experiments on two isolated transverse dunes with different scales in the Taklimakan Sand Sea show that particle size and slope control the threshold shear velocity and sand flows on the stoss of the dunes. The decreased threshold shear velocity and the unsaturated sand flows are the main reasons why sands are not deposited at the toe of the dunes. The particle size controls sand flux through its influence on the aerodynamic roughness elements and threshold shear velocities. The sand flux is different for dune surfaces with different particle size distributions. Under the control of the medium to low stress of the drifting-sand winds, the results of the field experiments and particle size analysis showed that sand transport had little influence on the particle size distributions. The mean particle size being transported on the stoss is lower than that on the dune surface, It is difficult to determine whether or not the wind is fully saturated with sands when sand flux calculation is mainly dependent on the shear velocity and the mean particle size. The sands within some range of the particle size are transported and developed into simple transverse dunes, and then the interdune surface is coarsened and alternated with the draas in the Taklimakan Sand Sea. Copyright (C) 2002 John Wiley Sons, Ltd.
收录类别	SCI
WOS关键词	STOSS SLOPE ; SEDIMENT TRANSPORT ; WINDWARD FLANKS ; BARCHAN DUNE ; SILVER-PEAK ; DESERT ; SALTATION ; THRESHOLD ; DYNAMICS ; VELOCITY
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
语种	英语
出版者	JOHN WILEY & SONS LTD
WOS记录号	WOS:000176024500004
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556766
专题	寒区旱区环境与工程研究所
通讯作者	Wang, XM
作者单位	1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lab Blown Sand Phys & Desert Environm, Lanzhou 730000, Gansu Province, Peoples R China 2.Chinese Acad Sci, Inst Engn Res, Lanzhou 730000, Gansu Province, Peoples R China 3.Lanzhou Univ, Dept Geog, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, XM,Dong, ZB,Zhang, JW,et al. Relations between morphology, air flow, sand flux and particle size on transverse dunes, Taklimakan Sand Sea, China[J]. EARTH SURFACE PROCESSES AND LANDFORMS,2002,27(5):515-526.
APA	Wang, XM,Dong, ZB,Zhang, JW,&Zhao, AG.(2002).Relations between morphology, air flow, sand flux and particle size on transverse dunes, Taklimakan Sand Sea, China.EARTH SURFACE PROCESSES AND LANDFORMS,27(5),515-526.
MLA	Wang, XM,et al."Relations between morphology, air flow, sand flux and particle size on transverse dunes, Taklimakan Sand Sea, China".EARTH SURFACE PROCESSES AND LANDFORMS 27.5(2002):515-526.

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