干旱区生态环境知识资源中心(Arid): Migration of barchan dunes in the western Quruq Desert, northwestern China

Arid

DOI	10.1002/esp.4629
	Migration of barchan dunes in the western Quruq Desert, northwestern China
	Yang, Junhuai 1; Dong, Zhibao1 ; Liu, Zhengyao 1; Shi, Weikang 1; Chen, Guoxiang 1; Shao, Tianjie 1; Zeng, Hanmin 2
通讯作者	Dong, Zhibao
来源期刊	EARTH SURFACE PROCESSES AND LANDFORMS
ISSN	0197-9337
EISSN	1096-9837
出版年	2019
卷号	44 期号:10 页码:2016-2029
英文摘要	Barchan dunes are common on Earth, Mars and Titan. Previous studies have shown that their formation, migration and evolution are influenced by the wind regime and other factors, but details vary among regions. Understanding barchan morphology and migration will both improve our understanding of dune geomorphology and provide a basis for describing the environmental conditions that affect the formation and development of these dunes on Earth and other planets. Here, we provide detailed measurements of barchan dune migration in China's Quruq Desert, in the lower reaches of the Tarim River. We monitored their migration direction and rate, and their morphological changes during migration, by comparing Google Earth images acquired in 2003 and 2014. The dunes migrated west-southwest, close to the local resultant drift direction. The migration rate averaged 8.9 to 32.1 m year(-1), with obvious spatial variation. In addition to the wind regime, the migration rate depended on dune morphology, density and vegetation cover; the rate was negatively related to dune height, density and vegetation cover, but positively linearly related to the length/width ratio (L-U/W) and to the decrease in this ratio from 2003 to 2014. We found correlations among the dune morphometric parameters, but the relationships were weaker than in previous research. Due to the complexity of the factors that affect the processes that underlie sand dune development and migration, the morphological changes during dune migration were also complex. Our measurements suggest that the aeolian environment played a dominant role in dune migration and its spatial variation in the Quruq Desert. These results will support efforts to control dune migration in the western Quruq Desert and improve our understanding of dune morphodynamics. (c) 2019 John Wiley & Sons, Ltd.
英文关键词	dune geomorphology dune morphodynamics dune migration barchan dune Quruq Desert
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000478646700010
WOS关键词	SAND DUNES ; IMPERIAL-VALLEY ; MOVEMENT ; FIELD ; CITY
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215091
作者单位	1.Shaanxi Normal Univ, Sch Geog & Tourism, 620 West Changan Ave, Xian 710119, Shaanxi, Peoples R China; 2.Chengdu Univ Technol, Coll Earth Sci, Erxianqiao East 3rd Rd 1, Chengdu, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Yang, Junhuai,Dong, Zhibao,Liu, Zhengyao,et al. Migration of barchan dunes in the western Quruq Desert, northwestern China[J],2019,44(10):2016-2029.
APA	Yang, Junhuai.,Dong, Zhibao.,Liu, Zhengyao.,Shi, Weikang.,Chen, Guoxiang.,...&Zeng, Hanmin.(2019).Migration of barchan dunes in the western Quruq Desert, northwestern China.EARTH SURFACE PROCESSES AND LANDFORMS,44(10),2016-2029.
MLA	Yang, Junhuai,et al."Migration of barchan dunes in the western Quruq Desert, northwestern China".EARTH SURFACE PROCESSES AND LANDFORMS 44.10(2019):2016-2029.