Arid
DOI10.1016/j.sedgeo.2016.03.016
Variation in grain size and morphology of an inland parabolic dune during the incipient phase of stabilization in the Hobq Desert, China
Liu, Meiping; Hasi, Eerdun; Sun, Yu
通讯作者Hasi, Eerdun
来源期刊SEDIMENTARY GEOLOGY
ISSN0037-0738
EISSN1879-0968
出版年2016
卷号337页码:100-112
英文摘要

A significant increase in rainfall in the summer of 2012 on the southern fringe of the Hobq Desert, Inner Mongolia, resulted in the vegetation and thus stability of dunes in this area. Our research focuses on a typical parabolic dune, which was active in 2011 and became stabilized after vegetation colonization. Topographic surveys and surface sediment analysis of the morphology and surface sands of the parabolic dune indicate that decreasing mean grain size and sorting values (better sorting), slightly more positive skewness and increasing kurtosis occurred over the dune surface during the incipient phase of stabilization. There was a strong relationship between grain size sorting and dune mobility. Surface sand from the stabilized dune was generally finer and better sorted than at the same location when the dune was active. During 2011-2012 the dune head had moved eastwards (by approximately 23 m) while its two arms expanded outward (by approximately 32 m), the height of the dune decreased, and the dune became larger with a decreasing volume. Once anchored (2013-2014), the overall morphology, and the grain size and sorting characteristics of the dune became more constant and quite different than when the dune was active. (C) 2016 Elsevier B.V. All rights reserved.


英文关键词Hobq Desert Parabolic dune Grain size and sorting characteristic Dune morphology Vegetation
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000375736700009
WOS关键词SAND TRANSPORT ; VEGETATION COVER ; PARTICLE-SIZE ; LINEAR DUNES ; AEOLIAN DEPOSITION ; CANADIAN PRAIRIES ; COACHELLA VALLEY ; CLIMATIC CHANGES ; COASTAL DUNE ; WIND FLOW
WOS类目Geology
WOS研究方向Geology
来源机构北京师范大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/196375
作者单位Beijing Normal Univ, Coll Resources Sci & Technol, Beijing 100875, Peoples R China
推荐引用方式
GB/T 7714
Liu, Meiping,Hasi, Eerdun,Sun, Yu. Variation in grain size and morphology of an inland parabolic dune during the incipient phase of stabilization in the Hobq Desert, China[J]. 北京师范大学,2016,337:100-112.
APA Liu, Meiping,Hasi, Eerdun,&Sun, Yu.(2016).Variation in grain size and morphology of an inland parabolic dune during the incipient phase of stabilization in the Hobq Desert, China.SEDIMENTARY GEOLOGY,337,100-112.
MLA Liu, Meiping,et al."Variation in grain size and morphology of an inland parabolic dune during the incipient phase of stabilization in the Hobq Desert, China".SEDIMENTARY GEOLOGY 337(2016):100-112.
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