Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.aeolia.2015.11.002 |
Yardangs in the Qaidam Basin, northwestern China: Distribution and morphology | |
Li, Jiyan1; Dong, Zhibao2; Qian, Guangqiang2; Zhang, Zhengcai2; Luo, Wanyin2; Lu, Junfeng2; Wang, Meng2 | |
通讯作者 | Li, Jiyan |
来源期刊 | AEOLIAN RESEARCH |
ISSN | 1875-9637 |
EISSN | 2212-1684 |
出版年 | 2016 |
卷号 | 20页码:89-99 |
英文摘要 | The northwestern Qaidam Basin exposes one of the largest and highest elevation yardang fields on Earth. The aim of the present study was to describe the distribution and morphology of these yardangs, and analyze the factors responsible for the distribution pattern of these aeolian landforms. The yardang fields are bounded by piedmont alluvial-diluvial fans from the mountain ranges surrounding the basin, except in the south, where they are bounded by dune fields, dry salt flats, lakes, and rivers. This distribution pattern can be attributed to regional tectogenesis and its corresponding environmental impacts. The morphology of the yardangs varies considerably in response to the diverse factors that control their formation and evolution. Long-ridge yardangs are mainly located in the northernmost part of the yardang field, and the long ridges are gradually dissected into smaller ridges in the downwind direction. Further downwind, the convergence of northerly and northwesterly winds and the effects of temporary runoff cause the ridges to gradually transition into mesa yardangs. Saw-toothed crests, and conical and pyramidal yardangs, occur in groups on folded brachyanticlinal structures. Typical whaleback yardangs are found in the southeast, at the northern margin of Dabuxun Lake. Morphological parameters vary among the yardang types. The orientation of the yardangs in the northernmost area is nearly N-S, with a transition towards NW-SE in the southernmost area in response to a change in the dominant wind direction that results from the orientations and positions of the mountain ranges that surround the basin. (C) 2016 Elsevier B.V. All rights reserved. |
英文关键词 | Yardangs Aeolian erosion landforms Dune fields Aeolian geomorphology Qaidam Basin |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000372381500009 |
WOS关键词 | NE TIBETAN PLATEAU ; EOLIAN FEATURES ; WESTERN DESERT ; WIND EROSION ; CORE SG-1 ; VENUS ; MARS ; MAGNETOSTRATIGRAPHY ; DEPRESSION ; EVOLUTION |
WOS类目 | Geography, Physical |
WOS研究方向 | Physical Geography |
来源机构 | 中国科学院西北生态环境资源研究院 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/191002 |
作者单位 | 1.Taiyuan Normal Univ, Jinzhong 030619, Shanxi, Peoples R China; 2.Chinese Acad Sci, Key Lab Desert & Desertificat, Cold & Arid Reg Environm & Engn Res Inst, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Jiyan,Dong, Zhibao,Qian, Guangqiang,et al. Yardangs in the Qaidam Basin, northwestern China: Distribution and morphology[J]. 中国科学院西北生态环境资源研究院,2016,20:89-99. |
APA | Li, Jiyan.,Dong, Zhibao.,Qian, Guangqiang.,Zhang, Zhengcai.,Luo, Wanyin.,...&Wang, Meng.(2016).Yardangs in the Qaidam Basin, northwestern China: Distribution and morphology.AEOLIAN RESEARCH,20,89-99. |
MLA | Li, Jiyan,et al."Yardangs in the Qaidam Basin, northwestern China: Distribution and morphology".AEOLIAN RESEARCH 20(2016):89-99. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。