干旱区生态环境知识资源中心(Arid): Pattern analysis and dating for the Badain Jaran dune field, northwestern China

Arid

DOI	10.1007/s12665-020-09066-4
	Pattern analysis and dating for the Badain Jaran dune field, northwestern China
	Ning, Wen-Xiao; Wang, Zhen-Ting
通讯作者	Ning, WX
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2020
卷号	79 期号:13
英文摘要	Pattern analysis can estimate dune formation ages, judge wind conditions and extract environmental signals from the common pattern parameters of active dune field. For the extraterrestrial dune fields, this method is a great advantage while many in situ and laboratory techniques cannot do anything. An ideal location for the large-scale pattern analysis test is the Badain Jaran desert where the tallest terrestrial aeolian dune occurs. In this study, the function forms of pattern parameters varying with the dune construction time are established, according to the natural evolution of a dune field in the duration of over 10 years. It is revealed that the relations between pattern parameters and time display power functions, in which the unknown coefficients in different conditions of wind regimes and sand availabilities can be estimated from the absolute ages of local deposits. From the northwest to southeast of the Badain Jaran desert, the dune crest length and mean spacing increase, and the defect density decreases. The pattern ages change correspondingly. Dune orientation mostly ranges between 10 degrees and 60 degrees. The crest length ages indicate that the modern active dune field began to form at about 20-75 ka BP, the dunes in the southeast and northeast are older than those in the western. This work confirms that pattern analysis offers an effective dating method for hard-to-reach or large-scale dune fields.
英文关键词	Badain Jaran Active dune field Pattern analysis Remote sensing Pattern dating
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000544965000001
WOS关键词	WIND REGIME ; TENGGER DESERT ; SAND DUNES ; EVOLUTION ; GEOMORPHOLOGY ; MEGADUNES ; TRANSPORT ; DYNAMICS ; COMPLEX
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324908
作者单位	[Ning, Wen-Xiao; Wang, Zhen-Ting] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; [Ning, Wen-Xiao] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ning, Wen-Xiao,Wang, Zhen-Ting. Pattern analysis and dating for the Badain Jaran dune field, northwestern China[J],2020,79(13).
APA	Ning, Wen-Xiao,&Wang, Zhen-Ting.(2020).Pattern analysis and dating for the Badain Jaran dune field, northwestern China.ENVIRONMENTAL EARTH SCIENCES,79(13).
MLA	Ning, Wen-Xiao,et al."Pattern analysis and dating for the Badain Jaran dune field, northwestern China".ENVIRONMENTAL EARTH SCIENCES 79.13(2020).