Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/geoa.12108 |
GRAIN-SIZE CHARACTERISTICS OF DUNE NETWORKS IN CHINA’s TENGGER DESERT | |
Zhang, Zhengcai; Dong, Zhibao; Li, Jiyan | |
通讯作者 | Zhang, Zhengcai |
来源期刊 | GEOGRAFISKA ANNALER SERIES A-PHYSICAL GEOGRAPHY |
ISSN | 0435-3676 |
EISSN | 1468-0459 |
出版年 | 2015 |
卷号 | 97期号:4页码:681-694 |
英文摘要 | Grain-size characteristics of dune networks in the Tengger Desert of northwestern China were investigated. Grain-size parameters (mean, standard deviation, skew, and kurtosis) were determined on dune surfaces at windward toe, stoss, crest and leeward toe locations. Multiple discriminant analyses were applied to distinguish deposition environments. Results indicated that the aeolian sediment is mainly composed of very fine and fine sand in the dune networks of the Tengger Desert. Sorting improves as grain size becomes finer. However, the relationships between mean grain size, skew, and kurtosis vary in space. There is a negative relationship between skew and sorting; similarly, the relationships between sorting and skew, and skew and kurtosis change in space. The sediment deposition environment includes aeolian sediment and lacustrine sediment. The lacustrine sediment provides the source material for dune windward toe and stoss formation and development, but the aeolian sediment provides the source material for dune crest and leeward toe formation and development. According to the log-probability of grain size distributions, aeolian sediments in dune networks are composed of two distinct saltation populations. |
英文关键词 | grain size dune networks Tengger Desert sediment deposition environment saltation |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000368416700004 |
WOS关键词 | TRANSVERSE DUNES ; PARTICLE-SIZE ; WIND-TUNNEL ; BLOWN SAND ; AIR-FLOW ; TRANSPORT ; FOREDUNE ; SURFACE ; LEE |
WOS类目 | Geography, Physical ; Geology |
WOS研究方向 | Physical Geography ; Geology |
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/2XILL650/187482 |
作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Desert & Desertificat, Lanzhou, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Zhengcai,Dong, Zhibao,Li, Jiyan. GRAIN-SIZE CHARACTERISTICS OF DUNE NETWORKS IN CHINA’s TENGGER DESERT[J]. 中国科学院西北生态环境资源研究院,2015,97(4):681-694. |
APA | Zhang, Zhengcai,Dong, Zhibao,&Li, Jiyan.(2015).GRAIN-SIZE CHARACTERISTICS OF DUNE NETWORKS IN CHINA’s TENGGER DESERT.GEOGRAFISKA ANNALER SERIES A-PHYSICAL GEOGRAPHY,97(4),681-694. |
MLA | Zhang, Zhengcai,et al."GRAIN-SIZE CHARACTERISTICS OF DUNE NETWORKS IN CHINA’s TENGGER DESERT".GEOGRAFISKA ANNALER SERIES A-PHYSICAL GEOGRAPHY 97.4(2015):681-694. |
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