干旱区生态环境知识资源中心(Arid): Dune Field Patterns and Their Control Factors in the Middle Areas of China's Hexi Corridor Desert

Arid

DOI	10.3389/feart.2022.818338
	Dune Field Patterns and Their Control Factors in the Middle Areas of China's Hexi Corridor Desert
	Zhang, Yan; Zhang, Zhengcai
通讯作者	Zhang, ZC
来源期刊	FRONTIERS IN EARTH SCIENCE
EISSN	2296-6463
出版年	2022
卷号	10
英文摘要	The middle areas of China's Hexi Corridor Desert are distributed within or at the edge of oases in continental river basins in Northern China. Recently, researchers found that rivers can provide sediment material for dune formation and development, but the mechanism has not been investigated in detail. In this study, the relationships among the wind environment, spatial distribution of continental rivers, sand availability, and dune field patterns in the middle area of Hexi Corridor Desert were analyzed. In terms of the wind energy environment, the study area can be divided into three regions: high-energy environment in the north, intermediate-energy environment in the middle, and low-energy environment in the south. The results showed that the resultant drift potential is predominantly from the NW quadrant. The directional variability of wind is intermediate in the northern and middle region and low in the southern region. The directions of winds with critical speed are SW in the northern region, NW and WNW in the middle region, and NW in the southern region. The main dune types are barchans, reticulate dunes, star dunes, linear dunes, and coppice dunes, which differ from previous results (mainly barchans and coppice dunes). Dune field patterns are controlled by the wind energy environment. In addition, the spatial distribution of continental rivers and sand availability are important factors affecting dune formation and development. Sand dunes are distributed downwind of continental rivers, which confirms the hypothesis that rivers can provide sediment material for dune formation. The spatial distribution and different dune types in the middle area of Hexi Corridor Desert reveal that their formation and development are controlled by the wind regime and sediment supply.
英文关键词	Hexi corridor desert wind energy environment dune patterns factor
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000812742800001
WOS关键词	GRAIN-SIZE CHARACTERISTICS ; DUNEFIELD ACTIVITY ; SPATIALLY DIVERSE ; WESTERN ; SANDS ; ENVIRONMENTS ; COMPLEX
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392693
推荐引用方式 GB/T 7714	Zhang, Yan,Zhang, Zhengcai. Dune Field Patterns and Their Control Factors in the Middle Areas of China's Hexi Corridor Desert[J],2022,10.
APA	Zhang, Yan,&Zhang, Zhengcai.(2022).Dune Field Patterns and Their Control Factors in the Middle Areas of China's Hexi Corridor Desert.FRONTIERS IN EARTH SCIENCE,10.
MLA	Zhang, Yan,et al."Dune Field Patterns and Their Control Factors in the Middle Areas of China's Hexi Corridor Desert".FRONTIERS IN EARTH SCIENCE 10(2022).