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Journal of Desert Research ›› 2018, Vol. 38 ›› Issue (3): 500-507.DOI: 10.7522/j.issn.1000-694X.2017.00070

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Aeolian Landform Cartography and Cause of the Blown-sand Disaster on Lanzhou-Xinjiang High-speed Railway in Yandun Gale Region of Xinjiang, China

Gao Yang1,2, Zhang Weimin1, Tan Lihai1, Bian Kai1   

  1. 1. Dunhuang Gobi 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:2017-07-23 Revised:2017-09-25 Online:2018-05-20 Published:2018-11-06

Abstract: Lanzhou-Xinjiang High-speed Railway is the first high-speed railway in China to cross the gobi gale region and sandy areas. The Yandun gale region on the east of Hami city is mainly distributed with gobi and other complex geomorphic types. The special landforms and climate make this region to be one of the most vulnerable area, and 57% of the study area is affected by the blown-sand disaster, and K2810-K2817 and K2820-K2840 are the most serious afflicted. According to the primary study, the strong wind and rich sand source in this area are the main factors causing the sand disaster to the high-speed railway, andthe abandoned land, the nabkha, the broken gobi surface and the loose wind-eroded monadnock are the main sand source. Human activities such as engineering construction destroyed the gobi surface, which is another reason leading to the sand disaster frequently these years. Based on high-resolution remote sensing images, combined with field survey data, the paper drew a thematic map of three sections in typical blown-sand disaster formation mode, which could provide scientific basis for establishing a scientific and reasonable control system to prevent disaster.

Key words: Lanzhou-Xinjiang High-speed Railway, blown-sand disaster, sand source, aeolian landform map

CLC Number: