Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/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
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ISSN | 0037-0738 |
EISSN | 1879-0968 |
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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