干旱区生态环境知识资源中心(Arid): 沙漠公路防护林不同林带位置的风沙流结构

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	沙漠公路防护林不同林带位置的风沙流结构
其他题名	Aeolian-Sand Flow Structure at Different Locations along Desert Highway Shelterbelt
	俞祥祥; 李生宇; 王海峰; 马学喜; 贾文茹
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2017
卷号	34 期号:3 页码:707-715
中文摘要	利用BSNE集沙仪对沙漠公路两侧防护林的近地表风沙流结构进行研究,结果表明: ①随着高度的增加,不同林带位置上部的输沙量趋于一致,各点风沙流输沙量差异主要集中在近地表处,而植被覆盖与否对近地表气流中的输沙量有决定性作用,输沙量表现为:迎风面>流沙地>林带间>背风面>林带内。②迎风面及流沙地风沙流输沙量主要分布在距地表20 cm高度内,背风面则集中分布在50 cm高度内,均占观测高度输沙总量的74%以上,林带间及林带内风沙流输沙量在各高度层分布较为平均,介于11% ~ 23%之间。③护林体系外(迎风面、背风面及流沙地),风沙流输沙垂直分布差异很大,输沙量随高度增加呈幂函数形式降低,而防护林体系内(林带间及林带内),风沙流垂直分布差异趋于减小,输沙量随高度增加呈多项式形式先降低后增加。
英文摘要	In this paper,BSNE sampler was used to study Aeolian-sand flow structure in ground layer along both shelterbelt sides of a desert highway. The results are as follows: ① The Aeolian-sand flux at the upper part of shelterbelt trended to accordance with the increase of height at different positions of shelterbelt. The difference of Aeolian sand flux at different observation sites occurred mainly in the ground layer. Vegetation and its coverage had a decisive effect on Aeolian-sand flux in the ground layer. Aeolian-sand flux along the shelterbelt was in an order of windward side > quicksand land > inter-shelterbelt zone > leeward side > shelterbelt; ② The Aeolian-sand flux on windward side of the shelterbelt and quicksand land was mainly distributed within 20 cm height from the ground surface,and that on leeward side of the shelterbelt was mainly distributed within 50 cm height,which accounted for over 74% of the total Aeolian-sand flux within the observation height. The Aeolian-sand flux in the inter-shelterbelt zone and the shelterbelt was relatively uniform and varied in a range of 11% - 23%; ③ The difference of vertical distribution of Aeolian-sand flux outside of the shelterbelt windward side, leeward side and quicksand land was very high, the Aeolian-sand flux was decreased with the increase of height in a power-function way,but it was in a decrease trend in the shelterbelt,and the Aeolian-sand flux was decreased at first and then increased with the increase of height in a polynomial-function way.
中文关键词	沙漠公路 ; 防护林 ; 风沙流结构 ; 输沙量 ; 塔克拉玛干沙漠
英文关键词	desert highway shelterbelt Aeolian-sand flow structure Aeolian-sand quantity Taklimakan Desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:5990128
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235995
作者单位	中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	俞祥祥,李生宇,王海峰,等. 沙漠公路防护林不同林带位置的风沙流结构[J]. 中国科学院新疆生态与地理研究所,2017,34(3):707-715.
APA	俞祥祥,李生宇,王海峰,马学喜,&贾文茹.(2017).沙漠公路防护林不同林带位置的风沙流结构.干旱区研究,34(3),707-715.
MLA	俞祥祥,et al."沙漠公路防护林不同林带位置的风沙流结构".干旱区研究 34.3(2017):707-715.