气候变化领域集成服务门户(CCPortal): Morphologic changes of simple star dunes during the growth process in Dunhuang, China

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DOI	10.1007/s11629-021-6970-5
	Morphologic changes of simple star dunes during the growth process in Dunhuang, China
	An, Zhi-shan; Zhang, Ke-cun; Tan, Li-hai; Niu, Qing-he; Liu, Ben-li; Niu, Bai-cheng
通讯作者	Zhang, KC (通讯作者)，Chinese Acad Sci, Dunhuang Gobi & Desert Res Stn, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China. ; Zhang, KC (通讯作者)，Chinese Acad Sci, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China.
发表日期	2022
ISSN	1672-6316
EISSN	1993-0321
起始页码	1095
结束页码	1106
卷号	19 期号:4
英文摘要	Star dune is one typical kind of aeolian geomorphology in global sand seas. It has attracted scholars in various research fields for years because of its unique morphologic features like Egyptian pyramid. The landform pattern of star dune is mainly dominated by factors such as regional wind regime, sand availability, and local topography. Star dunes grow vertically as they accumulate sand brought in from different directions; however, little is known regarding morphologic changes during this process. The stability of star dunes based on quantitative data is another unsolved question due to the limitation in measuring equipment or other factors. And whether the star dune can grow into star sand hills is another scientific problem which needs to be discussed. In this paper, the heightening development process and morphological changes of star dunes were monitored in Mingsha Mountain of Dunhuang with the 3D laser scanner. Results show that the star dunes in Mingsha Mountain were formed by a group of relatively steady winds, which were northwest, northeast and south winds. With the increase of the height of the star dunes, the morphological parameters of the dune, such as the volume and bottom area, did not show regular changes. The surface erosion of both Dune 1 and Dune 2 during the observation period was closely related to the regional wind conditions. During the growth of the star dunes, the overall trend of the dunes was relatively steady and the dune shape maintained its stability although the aspect and slope of the sand dunes changed, indicating that the stability of star dune was not complete and was dynamic. Moreover, the variation range of the dune slope was proportional to the volume change of the dune.
关键词	DYNAMICS FIELD FLOW MIGRATION
英文关键词	Star dune; 3D laser scanner; Dunhuang; Morphologic change
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000783541800013
来源期刊	JOURNAL OF MOUNTAIN SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254445
作者单位	[An, Zhi-shan; Zhang, Ke-cun; Tan, Li-hai; Niu, Qing-he; Liu, Ben-li; Niu, Bai-cheng] Chinese Acad Sci, Dunhuang Gobi & Desert Res Stn, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; [An, Zhi-shan; Zhang, Ke-cun; Tan, Li-hai; Niu, Qing-he; Liu, Ben-li; Niu, Bai-cheng] Chinese Acad Sci, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China; [An, Zhi-shan] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	An, Zhi-shan,Zhang, Ke-cun,Tan, Li-hai,et al. Morphologic changes of simple star dunes during the growth process in Dunhuang, China[J]. 中国科学院西北生态环境资源研究院,2022,19(4).
APA	An, Zhi-shan,Zhang, Ke-cun,Tan, Li-hai,Niu, Qing-he,Liu, Ben-li,&Niu, Bai-cheng.(2022).Morphologic changes of simple star dunes during the growth process in Dunhuang, China.JOURNAL OF MOUNTAIN SCIENCE,19(4).
MLA	An, Zhi-shan,et al."Morphologic changes of simple star dunes during the growth process in Dunhuang, China".JOURNAL OF MOUNTAIN SCIENCE 19.4(2022).