干旱区生态环境知识资源中心(Arid): Variation in grain-size characteristics as a function of wind direction and height in the Sanlongsha dune field of the northern Kumtagh Desert, China

Arid

DOI	10.1016/j.aeolia.2019.06.004
	Variation in grain-size characteristics as a function of wind direction and height in the Sanlongsha dune field of the northern Kumtagh Desert, China
	Yang, Zhuanling 1,2; Qian, Guangqiang 1; Han, Zhiwen 1; Dong, Zhibao3 ; Luo, Wanyin 1; Zhang, Zhengcai 1; Lu, Junfeng 1; Liang, Aimin 1,2; Tian, Min 1,2
通讯作者	Qian, Guangqiang
来源期刊	AEOLIAN RESEARCH
ISSN	1875-9637
EISSN	2212-1684
出版年	2019
卷号	40 页码:53-64
英文摘要	The Sanlongsha dune field, on the northern edge of China's Kumtagh Desert, connects to the desert through the Aqik Valley. The dunes are tightly linked to the desert through complex sediment transport processes and landforms. To clarify regional geomorphological processes and the source regions for the dunes, we conducted long-term field studies of sediment transport, analyzed the spatial distribution of grain-size characteristics, and their variations with wind direction and height. The transported particles are mainly (73.3%) fine and medium sands, moderately to well-sorted, positively skewed to fine, with mean grain sizes of 1.12-2.19 Phi (220-460 mu m). The finest, worst-sorted particles occurred near the surface (0-10 cm), whereas the coarsest and best-sorted particles at the top layer (40-100 cm) were found in sediments transported from the prevailing wind direction (NE); the finest, worst-sorted particles were found at the top layer, whereas the coarsest and best-sorted were found near the surface for sediments transported from the weakest wind direction (S). We have found multiple patterns of vertical variation of the grain-size parameters. With the increase height, transported particles become coarser, better-sorted, and the frequency curves narrowed, nearly symmetrical to positively distribution in prevailing wind direction, while becoming finer in S wind direction. The grain-size distribution of transported particles in different directions and heights are mainly dominated by wind intensity, Gobi surface properties, and grain size in this region.
英文关键词	Wind-blown sand Grain-size parameters Sanlongsha dune field Kumtagh Desert
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000488653300006
WOS关键词	LINEAR DUNES ; VERTICAL-DISTRIBUTION ; SAND ; PROFILE ; FLUX ; FLOW ; PARAMETERS ; TRANSPORT ; SCALE
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/213902
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, 322 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710119, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Yang, Zhuanling,Qian, Guangqiang,Han, Zhiwen,et al. Variation in grain-size characteristics as a function of wind direction and height in the Sanlongsha dune field of the northern Kumtagh Desert, China[J],2019,40:53-64.
APA	Yang, Zhuanling.,Qian, Guangqiang.,Han, Zhiwen.,Dong, Zhibao.,Luo, Wanyin.,...&Tian, Min.(2019).Variation in grain-size characteristics as a function of wind direction and height in the Sanlongsha dune field of the northern Kumtagh Desert, China.AEOLIAN RESEARCH,40,53-64.
MLA	Yang, Zhuanling,et al."Variation in grain-size characteristics as a function of wind direction and height in the Sanlongsha dune field of the northern Kumtagh Desert, China".AEOLIAN RESEARCH 40(2019):53-64.