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Geoscience ›› 2010, Vol. 24 ›› Issue (5): 1016-1021.

• Water Resource and Environment • Previous Articles     Next Articles

Probability of Loess Landslide Based on Terrain and Vegetation Distribution in Loess Plateau

 YIN  Hao1, LIU  Fei1, DU  Li-Xin2, SUI  Song-Yu3   

  1. 1.School of Water Resources and Environment, China University of Geosciences, Beijing100083, China;
    2.Qinhuangdao Mineral Resource and Hydrogeology Brigade of Hebei Geological Prospecting Bureau, Qinhuangdao, Hebei066001, China;
    3.Liaoning Investigation Institute of Hydrogeology and Engineering Geology, Daliang, Liaoning116038, China)
  • Online:2010-09-24 Published:2012-03-28

Abstract:

Slope terrain plays an important role in loess landslide. In Loess Plateau, the large research area is divided into 31,418 slope units with the watersheds and steam networks in the Geographic Information System (GIS). All the terrain parameters of the slope units can be got by Zonal Statistics of Spatial Analyst Tools in GIS and the topographic distribution of slope units will be shown. The probability distributions of landslides at ranges of different profile curvatures,slope,slope height and aspect are discussed using parameters of all slope units and 293 loess landslides in the study area. It is found out that the probability of loess landslides would increase with the profile curvatures,slope and height.

Key words: loess landslide, slope terrain, vegetation distribution, probability analysis

CLC Number: