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中国沙漠 ›› 2009, Vol. 29 ›› Issue (4): 596-603.

• 沙漠与沙漠化 • 上一篇    下一篇

青藏铁路典型路段风沙灾害现状与机械防沙效益估算

牛清河, 屈建军, 张克存, 韩庆杰, 韩光中, 马 瑞   

  1. 中国科学院寒区旱区环境与工程研究所 沙漠与沙漠化重点实验室, 敦煌戈壁荒漠生态与环境研究站, 甘肃 兰州 730000
  • 收稿日期:2008-01-29 修回日期:2008-05-23 出版日期:2009-07-20 发布日期:2009-07-20

Status of Aeolian-Sand Disaster and Estimation of Mechanical Sand-Controlling Benefit at Typical Sections of Qinghai-Tibet Railway

NIU Qing-he, QU Jian-jun, ZHANG Ke-cun, HAN Qing-jie, HAN Guang-zhong, MA Rui   

  1. Key Laboratory of Desert and Desertification, Dunhuang Gobi and Desert Ecological and Environmental Research Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, 730000
  • Received:2008-01-29 Revised:2008-05-23 Online:2009-07-20 Published:2009-07-20

摘要: 通过对青藏铁路格尔木—拉萨段沿线风沙灾害的实地调查,发现该路段风沙灾害具有时空分布相对集中,沙源复杂多样,以轻微沙害为主,潜在危害严重的特征。对红梁河、北麓河、沱沱河、扎加藏布和错那湖段等典型路段的沙害进行现场实测,并结合Google Earth影像分析,利用三棱锥柱和趋势模拟的计算方法,估算出重点地段主要防沙设施的积沙量约为1.32×105 m3,为制定更加有效的防沙体系提供科学依据。

关键词: 青藏铁路, 风沙灾害, 机械防沙效益, 积沙量估算

Abstract:

The field investigation into the aeolian-sand disaster along the section from Golmud to Lhasa of the Qinghai-Tibet Railway disclosed the following characteristics: relative concentrated aeolian-sand disasters in space-time; complex and diversified sand sources; mainly slight disasters; and severe potential hazard. Based on the combination of the in situ measurements on the aeolian-sand disasters at sections of Honglianghe, Beiluhe, Tuotuohe and Zajazangbu, Cuona Lake, with Google Earth images analysis, the authors calculated the sand accumulation quantity of the main sand-preventing facilities in the typical sections by methods of triangular pyramid, triangular prism and average trend simulation, approximating 1.32×105 m3. The result can provide scientific basis for constructing more effective sand controlling system.

Key words: Qinghai-Tibet Railway, aeolian-sand disaster, benefit of mechanical sand-control, estimation of sand accumulation

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