干旱区生态环境知识资源中心(Arid): 塔克拉玛干沙漠腹地阻沙栅栏对垄间新月形沙丘形态的影响

Arid

	塔克拉玛干沙漠腹地阻沙栅栏对垄间新月形沙丘形态的影响
其他题名	Effects of sand blocking fences on morphology of barchans on interdune corridor of complex ridges in the central Taklimakan Desert
	李生宇1 ; 雷加强1 ; 徐新文1 ; 王海峰 1; 谷峰 2; 邱永志 2; 李中全 2; 许波 2
ISSN	1000-6060
出版年	2008
卷号	31 期号:6 页码:910-917
中文摘要	阻沙栅栏是一种重要的机械防沙形式，在发挥阻沙效益的同时也影响了周边的风沙地貌的发育。塔克拉玛干沙漠腹地垄间新月形沙丘的实地测量表明，受阻沙栅栏影响，其迎风侧低矮新月形的几何形体和走向都发生了明显的变化；沙丘形态的变化模式与其自身形体大小、栅栏的水平垂直距离、当地风信、栅栏的设置走向以及栅栏已有的阻沙量大小等因素有关。阻沙栅栏对迎风侧沙丘影响的临界距离是15H（H为栅栏高度），当阻沙栅栏走向与当地的主导风向夹角alpha〈45°时，栅栏对沙丘移动有侧导作用。栅栏迎风侧沙丘的形态变化与栅栏对迎风侧近地表风场的扰动作用有关。
英文摘要	Sand blocking fence is an important form of physical sand control measures and has apparent effects on the aeolian geomorphology evolution of its periphery region while blocking drift-sand. The paper illustrated the surveyed results of some isolated barchans in the windward side of sand blocking fences settled in interdune area in the hinterland of the Taklimakan Desert. It found a phenomenon that barchans on interdune corridor of complex ridges evolved retrogradely. But sand blocking fences disturbed the retrograde evolution and movement of barchans and delayed the retrograde evolution of barchans on interdune corridor of complex ridges. The geometric morphology （ indexes such as height, length, width, grade of windward slope, wings＇ length, angular divergence of two wings, basal area and volume） and strike of barchans in the windward side of sand blocking fences changed greatly due to influence of sand blocking fences. The model of dunes＇ morphology change was related to these factors, self-morphological sizes of dunes, their horizontal-perpendicular distance to sand blocking fence, local wind regime, settied-strike of fence and the existing amount of sand blocked by fences, and so on. The paper also found a phenomena that the critical distance of sand blocking fences＇ influence to dunes in the windward side of fences was 15 folds of fences＇ height, and sand blocking fences can lead dunes in their windward side moving along the strikes of fences when the included angle between sand blocking fences and local dominating wind direction was less than 45 degree. The morphologic variation of barchans is decided by the changes of wind regime in their windward side of sand blocking fences.
中文关键词	阻沙栅栏 ; 新月形沙丘 ; 形态变化 ; 塔克拉玛干沙漠
英文关键词	sand blocking fences isolated barchans in interdune areas morphological changes the Taklimakan Desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:3453402
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/2XILL650/222296
作者单位	1.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国; 2.中国石油天然气股份有限公司塔里木油田分公司, 库尔勒, 新疆 841000, 中国
推荐引用方式 GB/T 7714	李生宇,雷加强,徐新文,等. 塔克拉玛干沙漠腹地阻沙栅栏对垄间新月形沙丘形态的影响[J]. 中国科学院新疆生态与地理研究所,2008,31(6):910-917.
APA	李生宇.,雷加强.,徐新文.,王海峰.,谷峰.,...&许波.(2008).塔克拉玛干沙漠腹地阻沙栅栏对垄间新月形沙丘形态的影响.,31(6),910-917.
MLA	李生宇,et al."塔克拉玛干沙漠腹地阻沙栅栏对垄间新月形沙丘形态的影响".31.6(2008):910-917.