Aeolian processes over gravel beds: Field wind tunnel simulation and its application atop the Mogao Grottoes, China (SCI)

CORC > 寒区旱区环境与工程研究所 > 中科院寒区旱区环境与工程研究所（未分类） > 期刊论文

	Aeolian processes over gravel beds: Field wind tunnel simulation and its application atop the Mogao Grottoes, China (SCI)
	Zhang W. M. ; Tan L. H. ; Zhang G. B. ; Qiu F. ; Zhan H. T.
刊名	Aeolian Research
	2014
卷号	15 期号:335-344
英文摘要	The aeolian processes of erosion, transport and deposition are threatening the Mogao Grottoes, a world culture heritage site. A field wind tunnel experiment was conducted atop the Mogao Grottoes using weighing sensors to quantify aeolian processes over protective gravel beds. Results reveal that aeolian erosion and deposition over gravel beds are basically influenced by gravel coverage and wind speed. Erosion is a main aeolian process over gravel beds and its strength level is mainly determined by gravel coverage: strong (<30%), medium (30-50%) and slight (>50%). Aeolian deposition only occurs when gravel coverage is equal to or greater than 30% and wind speeds are between 8 and 12 m s(-1), and this process continues until the occurrence of the equilibrium coverage. In addition, the change in conditions of external sand supply affects the transition between aeolian deposition and erosion over gravel beds, and the quantity of sand transport at the height of 0-24 mm is an important indicator of aeolian deposition and erosion over gravel beds. Our results also demonstrate that making the best use of wind regime atop the Mogao Grottoes and constructing an artificial gobi surface in staggered arrays, with 30% coverage and 30-mm-high gravels and in 40 mm spacing can trap westerly invading sand flow and enable the stronger easterly wind to return the deposited sand on the gravel surface back to the Mingsha Mountain so as to minimize the damage of the blown sand flux to the Mogao Grottoes. (C) 2014 Elsevier B.V. All rights reserved.
收录类别	SCI
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.casnw.net/handle/362004/25014]
专题	寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文
推荐引用方式 GB/T 7714	Zhang W. M.,Tan L. H.,Zhang G. B.,et al. Aeolian processes over gravel beds: Field wind tunnel simulation and its application atop the Mogao Grottoes, China (SCI)[J]. Aeolian Research,2014,15(335-344).
APA	Zhang W. M.,Tan L. H.,Zhang G. B.,Qiu F.,&Zhan H. T..(2014).Aeolian processes over gravel beds: Field wind tunnel simulation and its application atop the Mogao Grottoes, China (SCI).Aeolian Research,15(335-344).
MLA	Zhang W. M.,et al."Aeolian processes over gravel beds: Field wind tunnel simulation and its application atop the Mogao Grottoes, China (SCI)".Aeolian Research 15.335-344(2014).