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中国沙漠 ›› 2025, Vol. 45 ›› Issue (5): 277-288.DOI: 10.7522/j.issn.1000-694X.2025.00021

• • 上一篇    

柳格高速公路沿线风沙环境特征

张可盈1,2(), 张娴1,2, 谢胜波1()   

  1. 1.中国科学院西北生态环境资源研究院 沙漠与沙漠化研究室/敦煌戈壁荒漠研究站,甘肃 兰州 730000
    2.中国科学院大学,北京 100049
  • 收稿日期:2024-11-12 修回日期:2025-02-18 出版日期:2025-09-20 发布日期:2025-09-27
  • 通讯作者: 谢胜波
  • 作者简介:张可盈(2002—),女,湖北荆州人,博士研究生,主要从事风沙工程研究。E-mail: zhangkeying23@mails.ucas.ac.cn
  • 基金资助:
    国家自然科学基金项目(42477505);国家自然科学基金项目(42077448);中国科学院西部青年学者项目(xbzglzb2022024);甘肃省杰出青年基金项目(22JR5RA049);甘肃省陇原青年英才项目(E339020101)

Environmental characteristics of wind-sand along the Liuyuan-Golmud Expressway

Keying Zhang1,2(), Xian Zhang1,2, Shengbo Xie1()   

  1. 1.Research Laboratory of Desert and Desertification / Dunhuang Gobi and Desert Research Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2024-11-12 Revised:2025-02-18 Online:2025-09-20 Published:2025-09-27
  • Contact: Shengbo Xie

摘要:

柳格高速公路修筑在河西走廊和柴达木盆地内陆极端干旱区,沿线以高寒风沙为主要环境特征,公路沙害严重但目前对柳格高速公路风沙过程和防治研究较少。为此,本文通过野外观测和粒度分析,对柳格高速公路沿线风沙环境进行研究。结果表明:公路沿线以西北风(NNW、WNW、W)为主,夏季(5—7月)起沙风频率、输沙势和最大可能输沙量均较高;冬季(11月至翌年1月)起沙风频率、输沙势、最大可能输沙量均较低,公路沿线输沙方向以SE、SSE、ESE、E方向为主。公路沿线自北向南,地表沉积物颗粒组成大致从细砂过渡到粗砂,沉积物平均粒径逐渐变粗,颗粒分布较均匀,粗颗粒物质较少。

关键词: 高寒风沙环境, 柳格高速公路, 风动力环境, 输沙势, 粒度分析

Abstract:

The Liuyuan-Golmud Expressway is built in the Hexi Corridor and the inland extreme arid area of Qaidam Basin. Along the route, alpine wind-sand is the main environmental feature. Currently, there is limited research on the sand processes and prevention along the Liuyuan-Golmud Expressway. Therefore, through field observations and particle size analysis, this study investigated the wind-sand environment along the highway and found that the prevailing winds are from the northwest (NNW、WNW、W), with frequency of sand-driving wind, sand transport potential, and maximal possible sand transport higher occurring in the summer months (May to July). In contrast, these factors are lower in the winter months (November to January of the following year). The sand transport direction along the highway primarily trends towards SE、SSE、ESE and E. From north to south along the highway, the surface sediment particles transition from fine sand to coarse sand, with the average particle size gradually becoming coarser. The particle distribution is relatively uniform, with fewer coarse particles.

Key words: alpine wind-sand environment, Liuyuan-Golmud Expressway, wind dynamic environment, sand transport potential, particle size analysis

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