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中国沙漠 ›› 2005, Vol. 25 ›› Issue (5): 652-657.

• 研究论文 • 上一篇    下一篇

高立式沙障处的风沙沉积及其表征的风沙运动规律

金昌宁1,2, 董治宝3, 李吉均1, 陈广庭3   

  1. 1. 兰州大学地理科学系, 甘肃兰州 730000;
    2. 新疆交通科学研究院, 新疆乌鲁木齐 830000;
    3. 中国科学院寒区旱区环境与工程研究所, 甘肃兰州 730000
  • 收稿日期:2004-07-02 修回日期:2004-08-30 出版日期:2005-10-20 发布日期:2005-10-20
  • 作者简介:金昌宁(1964-),男(汉族),湖北咸宁人,在职博士,副研究员,主要从事风沙工程、工程地质、公路工程研究。E-mail:xjjcnalt@tom.com
  • 基金资助:
    新疆维吾尔自治区交通厅交通科技发展基金项目资助

Blown Sand Deposits and Its Indications on Wind Activities around High Windbreaks

JIN Chang-ning1,2, DONG Zhi-bao3, LI Ji-jun1, CHEN Guang-ting3   

  1. 1. Department of Geography, Lanzhou University, Lanzhou 730000, China;
    2. Xinjiang Communication Science Research Institute, Urumqi 830000, China;
    3. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2004-07-02 Revised:2004-08-30 Online:2005-10-20 Published:2005-10-20

摘要: 对高立式沙障处的风沙沉积情况与风沙活动强度之间的对应关系进行探讨。结果表明,在一定条件下,两者对应关系明显,相互间可进行换算。据此对应关系,在塔克拉玛干沙漠公路支线上选取合适路段,在不同地貌类型及不同地貌部位上,通过量测高立式沙障处的积沙量,得知风沙活动强度在不同区域的变化情况,从而进一步推断出塔克拉玛干沙漠腹地风沙运动的某些规律或特征:如最大输沙量可达17m3·m-1·a-1左右;在垄间低地中,一些小纵向沙垄可成为输送风沙的主要通道;在复合型纵向大沙垄中,沙垄体自身的运动形式与单个沙丘的运动形式相类似,等等。

关键词: 高立式沙障, 防沙工程, 输沙率, 风沙运动, 塔克拉玛干沙漠

Abstract: This paper discussed the relations of sand deposits with wind activity strength around the high windbreaks. Results show that under some limitations there are close correlations between the wind activity strength and sand deposits. According to this correlation, through measurements of sand deposits around the high windbreaks we estimated the variations of wind activity strength on different ground surfaces and different geomorphologic terrains along the branches of Taklimakan Desert Highway, accordingly inferred some laws or characteristics of wind activities in the central Taklimakan. For instances, the maximum sand transport in this region is about 17 m3·m-1·a-1; some simple linear dunes within interdunes may be the major channels of sand transport; activities of compound/complex longitudinal dunes are similar with that of the single dunes in the central Taklimakan.

Key words: high windbreaks, blown sand-control engineering, sand transport rate, wind activity, Taklimakan Desert

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