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	Geomorphologic patterns of dune networks in the Tengger Desert, China
	Wen Qing1; Dong Zhibao1,2
刊名	JOURNAL OF ARID LAND
	2016-10-01
卷号	8期号:5页码:660-669
关键词	aeolian geomorphology dune networks geomorphological parameters geomorphic pattern analysis Tengger Desert
ISSN号	1674-6767
DOI	10.1007/s40333-016-0092-x
通讯作者	Dong Zhibao(zbdong@lzb.ac.cn)
英文摘要	Dune networks are widely distributed in the world's deserts, which include primary ridges and secondary ridges. However, they have not been sufficiently studied in a systematic manner and their origins and spatial and morphological characteristics remain unclear. To provide information on the geomorphology of dune networks, we analyze the software geomorphologic patterns of the dune networks in China's Tengger Desert using matrix and laboratory to process remote-sensing images. Based on analysis of image features and their layout in a topographic map, we identify two types of dune networks (square and rectangular dune networks) with different size and morphological structures in the Tengger Desert. Four important geomorphic pattern parameters, ridge length, spacing, orientation and defect density, are analyzed. The length of primary ridges of dune networks decreases from northwest of the desert to the southeast, resulting an increasing spacing and a transition from rectangular dune networks to square dune networks. Wind regime and sediment supply are responsible for the variation in pattern parameters. We use the spacing and defect density data to estimate the construction time of dune networks and found that the dune networks in the Tengger Desert formed since about 1.3 ka BP.
收录类别	SCI
WOS关键词	NW CHINA ; BEDFORMS
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000378931000002
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557225
专题	寒区旱区环境与工程研究所
通讯作者	Dong Zhibao
作者单位	1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Shaanxi Normal Univ, Dept Geog, Xian 710062, Peoples R China
推荐引用方式 GB/T 7714	Wen Qing,Dong Zhibao. Geomorphologic patterns of dune networks in the Tengger Desert, China[J]. JOURNAL OF ARID LAND,2016,8(5):660-669.
APA	Wen Qing,&Dong Zhibao.(2016).Geomorphologic patterns of dune networks in the Tengger Desert, China.JOURNAL OF ARID LAND,8(5),660-669.
MLA	Wen Qing,et al."Geomorphologic patterns of dune networks in the Tengger Desert, China".JOURNAL OF ARID LAND 8.5(2016):660-669.

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