Journal of Geographical Sciences ›› 2006, Vol. 16 ›› Issue (1): 99-104.doi: 10.1007/s11442-006-0110-6

• Climate and Environmental Change • Previous Articles     Next Articles

The impact of Dunhuang railway construction on land desertification

YUAN Shaofeng, XV Jianchun, YANG Lixia   

  1. College of Public Administration, Zhejiang Gongshang University, Hangzhou 310035, China
  • Received:2005-02-26 Revised:2005-10-12 Online:2006-03-25 Published:2006-03-25
  • Supported by:

    Key project of Ministry of Railway; National Basic Research Program of China, No.2002CB410807

Abstract:

The area that the railway will cross is a region with the main physiognomies of desert and Gobi, with a most fragile ecological environment. It is also a region that is highly susceptible to man-made disturbance. The construction of railway will intensify soil erosion along the railway line to a certain degree. The map of soil erosion conditions in the section from Liugou to Dunhuang City in the range of 10 km each side along the line was compiled by using the techniques of remote sensing and geographic information system (GIS). Based on analysis of the status of desertification and the influence of the railway construction projects, the changes of the types, intensities and the total amount of the soil erosion caused by the construction were predicted.

Key words: Dunhuang railway, remote sensing, land desertification, ecological environment, soil erosion