Topographical changes of ground surface affected by the shelterbelt along the Tarim Desert Highway

CORC > 新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所(2010年以前数据)

	Topographical changes of ground surface affected by the shelterbelt along the Tarim Desert Highway
	Li ShengYu ; Lei JiaQiang ; Xu XinWen ; Wang HaiFeng ; Fan JingLong ; Gu Feng ; Qiu YongZhi ; Xu Bo ; Gong Qing ; Zheng Wei
刊名	CHINESE SCIENCE BULLETIN
	2008
卷号	53 期号:2 页码:40776
关键词	TAKLIMAKAN DESERT DUNE
ISSN号	1001-6538
通讯作者	Li, SY, Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China
中文摘要	To study the effects of sand protection project on modern aeolian landform, the types, distribution, and intensity of topographical changes of the ground surface affected by the shelterbelt along the Tarim Desert Highway were determined by measuring the deflation and deposition of sand surface in the Tazhong area located in the hinterland of the Taklimakan Desert. The results showed that (1) the newly-formed landform in sand protection systems is dominated by aeolian deposition including the small-scale Nabkha Dunes, the medium-scale sheet-like sand deposition and the large-scale ridge-like sand deposition. To some degree, aeolian deflation landform can also be formed in the open space in the shelterbelt. Furthermore, it is difficult for aeolian deflation landform to develop in a large scale in the interdunes. However, aeolian deflation landform can be developed in a large-scale on the windward slope of secondary dunes in longitudinal complex sand ridges; (2) on the windward side of the sand protection systems, both the morphology and strike of dwarf mobile dunes in the interdunes are changed by the sand-obstructing forest belts and the ridge-like sand deposition around it. The windward slope of the ridge-like deposition around the sand-obstructing forest belt forms a stable ground surface. After being damaged by forward-moving dunes in a short period, the ground surface is recovered gradually; (3) on the leeward side of the sand protection systems, aeolian deflations are formed widely. Particularly, the deflation depression is formed in the interdunes. In addition, the dunes in the region with highly topographic relief are cut flat by aeolian deflations; thereafter its relief of topography is reduced. The above analysis indicates that shelterbelts have obvious effects on the windward wind-sand flux in terms of dissipating energy and intercepting sand. With the recovery of wind velocity on the leeward side of the sand protection systems, the wind-sand flux gradually tends to be unsaturated; therefore the sand surface deflation is formed.
学科主题	自然地理学
收录类别	SCI
公开日期	2011-08-19
内容类型	期刊论文
源URL	[http://ir.xjlas.org/handle/365004/10110]
专题	新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据)
推荐引用方式 GB/T 7714	Li ShengYu,Lei JiaQiang,Xu XinWen,et al. Topographical changes of ground surface affected by the shelterbelt along the Tarim Desert Highway[J]. CHINESE SCIENCE BULLETIN,2008,53(2):40776.
APA	Li ShengYu.,Lei JiaQiang.,Xu XinWen.,Wang HaiFeng.,Fan JingLong.,...&Zheng Wei.(2008).Topographical changes of ground surface affected by the shelterbelt along the Tarim Desert Highway.CHINESE SCIENCE BULLETIN,53(2),40776.
MLA	Li ShengYu,et al."Topographical changes of ground surface affected by the shelterbelt along the Tarim Desert Highway".CHINESE SCIENCE BULLETIN 53.2(2008):40776.