干旱区生态环境知识资源中心(Arid): 塔克拉玛干沙漠高大复合纵向沙垄区路面沙害情势的变化特征

Arid

	塔克拉玛干沙漠高大复合纵向沙垄区路面沙害情势的变化特征
其他题名	Evolutionary characteristics of sand disasters on road surface in the complex dune-chains of the Taklimakan Desert
	孙艳伟 1; 李生宇1 ; 徐新文1 ; 谷峰 2; 邱永志 2; 许波 2; 巩庆 3; 郑伟 3; 刘涛 4
ISSN	1000-6060
出版年	2009
卷号	32 期号:3 页码:327-334
中文摘要	为了探讨机械防护体系人工防护工作停止后,公路路面沙害的形成和发育过程,分别于2003年和2007年对塔中地区一段井场路的路面沙害进行了实地测量和卫片室内量测,研究发现在塔克拉玛干沙漠公路复合型纵向沙垄区段,公路芦苇机械防沙体系极度衰竭后,路面沙害情势变化呈现一定的规律性:(1)2003年-2007年四年间公路沙害发展迅速,路面沙害程度进一步加重.路面沙害路段长度以年均2%的比例增加,沙害路段数也快速增加;路面沙害面积以每年平均10%的面积比例快速发展;沙丘前移压埋类型发展速度明显高于积沙类型.(2)沙垄区路面沙害发生频率和路面沙害程度的发展速率要远高于垄间区,在沙垄区次级地貌单元中,垄顶>背风坡>迎风坡;各地貌部位的沙丘前移压埋类型发展速率高于积沙类型.(3)路风夹角在83°～89°之间的路段沙害演化速率最大,其他小夹角沙害演化规律不明显;路面沙害强度的发展速率与路风夹角的关系不明显.
英文摘要	To investigate the evolutionary process of sand drift disaster on road under the condition of manual work stopping, sand disaster on a segment of desert highway was measured by field survey in 2003 and satellite images a-nalysis in 2007, respectively. The study area is located in the Tazhong Station in the complex dune-chains of the Taklirnakan Desert. Sand drift disasters on road surface have significant evolutionary features after the straw-breaks along the highway on the area of complex dune-chains in the hinterland of the Taklimakan Desert. The research re-sults show that: (1) Sand drift disasters on road surface have fast been expanded, its intensity also become higher during 2003 and 2007. The length of sand drift disasters was increased in the ratio of 2% per year, and the number of sand disasters was also increased intensively; the area of sand disasters was increased in the ratio of 10% per year; the evolutionary velocity of mobile dune burying was higher than that of sand deposition accumulation. (2) The evolutionary velocity of occurring frequencies and intensity of sand drift disasters was higher in the region with dune-chains than that in the inter-dune-chains region, and that on the top of dune-chains was higher than that on the windward slopes and leeward slopes. The evolutionary velocity of mobile dune burying was higher than that of sand deposition accumulation in all morphologic sections. (3) The evolutionary velocity of sand drift disasters was largest in the areas where the angles between the road alignment and the prevailing wind direction was between 83° - 89° ,the evolutionary law of other angles was not significant. The relationship between the evolutionary velocity of its intensity and angles was not obvious.
中文关键词	沙漠公路 ; 高大复合纵向沙垄 ; 路面沙害 ; 沙害情势变化
英文关键词	the Tarim Desert Highway complex longitudinal dunes sand drift disaster on road surface evolutionary characteristics of sand drift disaster
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:3761613
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/2XILL650/223546
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; 3.新疆且末县塔中气象站, 且末, 新疆 841000, 中国; 4.新疆气象技术装备中, 乌鲁木齐, 新疆 830002, 中国
推荐引用方式 GB/T 7714	孙艳伟,李生宇,徐新文,等. 塔克拉玛干沙漠高大复合纵向沙垄区路面沙害情势的变化特征[J]. 中国科学院新疆生态与地理研究所,2009,32(3):327-334.
APA	孙艳伟.,李生宇.,徐新文.,谷峰.,邱永志.,...&刘涛.(2009).塔克拉玛干沙漠高大复合纵向沙垄区路面沙害情势的变化特征.,32(3),327-334.
MLA	孙艳伟,et al."塔克拉玛干沙漠高大复合纵向沙垄区路面沙害情势的变化特征".32.3(2009):327-334.