干旱区生态环境知识资源中心(Arid): Blown sand motion within the sand-control system in the southern section of the Taklimakan Desert Highway

Arid

	Blown sand motion within the sand-control system in the southern section of the Taklimakan Desert Highway
	Cheng Hong; He Jiajia; Xu Xingri; Zou Xueyong; Wu Yongqiu; Liu Chenchen; Dong Yifan; Pan Meihui; Wang Yanzai; Zhang Hongyan
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2015
卷号	7 期号:5 页码:599-611
英文摘要	Although scientists have performed many studies in the Taklimakan Desert, few of them have reported the blown sand motion along the southern edge of the Taklimakan Desert Highway, which differs significantly from the northern region in terms of aeolian sand geomorphology and formation environment. Based on the field observation data of airflow and aeolian sand transport, continuous monitoring data of erosional and depositional processes between 14 April 2009 and 9 April 2011 and data of surface sand grains from the classical section along the southern edge of the Taklimakan Desert Highway, this paper reported the blown sand motion within the sand-control system of the highway. The main results are as follows: 1) The existing sand-control system is highly effective in preventing and controlling desertification. Wind velocities within the sand-control system were approximately 33%-100% of those for the same height above the mobile sand surface. Aeolian sand fluxes were approximately 0-31.21% of those of the mobile sand surface. Sand grains inside the system, with a mean diameter of 2.89 phi, were finer than those (2.15 phi) outside the system. In addition, wind velocities basically followed a logarithmic law, but the airflow along the classical section was mainly determined by topography and vegetation. 2) There were obvious erosional and depositional phenomena above the surface within the sand-control system, and these phenomena have very consistent patterns for all observation points in the two observed years. The total thicknesses of erosion and deposition ranged from 0.30 to 14.60 cm, with a mean value of 3.67 cm. In contrast, the deposition thicknesses were 1.90-22.10 cm, with a mean value of 7.59 cm, and the erosion thicknesses were 3.51-15.10 cm, with a mean value of 8.75 cm. The results will aid our understanding of blown sand within the sand-control system and provide a strong foundation for optimizing the sand-control system.
英文关键词	sand-control system blown sand motion erosion deposition Taklimakan Desert Highway
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Transportation
CSCD记录号	CSCD:5474539
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335518
作者单位	Cheng Hong, Beijing Normal University, State Key Laboratory of Earth Surface Processes and Resource Ecology;;MOE Engineering Center of Desertification, Beijing 100875, China.; He Jiajia, Beijing Normal University, State Key Laboratory of Earth Surface Processes and Resource Ecology;;MOE Engineering Center of Desertification, Beijing 100875, China.; Xu Xingri, Beijing Normal University, State Key Laboratory of Earth Surface Processes and Resource Ecology;;MOE Engineering Center of Desertification, Beijing 100875, China.; Zou Xueyong, Beijing Normal University, State Key Laboratory of Earth Surface Processes and Resource Ecology;;MOE Engineering Center of Desertification, Beijing 100875, China.; Wu Yongqiu, Beijing Normal University, State Key Laboratory of Earth Surface Processes and Resource Ecology;;MOE Engineering Center of Desertification, Beijing 100875, China.; Liu Chenchen, Beijing Normal University, State Key Laboratory of Earth Surface Processes and Resource Ecology;;MOE Engineering Center of Dese...
推荐引用方式 GB/T 7714	Cheng Hong,He Jiajia,Xu Xingri,et al. Blown sand motion within the sand-control system in the southern section of the Taklimakan Desert Highway[J],2015,7(5):599-611.
APA	Cheng Hong.,He Jiajia.,Xu Xingri.,Zou Xueyong.,Wu Yongqiu.,...&Zhang Hongyan.(2015).Blown sand motion within the sand-control system in the southern section of the Taklimakan Desert Highway.Journal of Arid Land,7(5),599-611.
MLA	Cheng Hong,et al."Blown sand motion within the sand-control system in the southern section of the Taklimakan Desert Highway".Journal of Arid Land 7.5(2015):599-611.