Paper Infomation
Variable Dimension Fractal Characteristics of Environmental Factors of Landslide in Gansu Section of Bailongjiang River Basin
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Author: Ge Yan, Xinkai Tang, Shouyun Liang
Abstract: Fractal dimension values derived from variable dimension between landslide distribution and environmental factors can reveal sensibility of landslide development to the factors. Taking the battered area of Wenchuan Earthquake, Gansu section of Bailongjang river basin as the research area, with variable dimension fractal theory, the fractal characteristics of the environmental factors of landslide are analyzed. The results show that: the spatial distribution of landslides is in the second order cumulative and fractal distribution with elevation, fault, rainfall, river, road, slope gradient, lithology and land use type, and the fractal dimension values are relatively large, about 1.60, 1.50, 1.38, 1.35, 1.35, 1.30, 1.22 and 1.14 respectively; the spatial distribution of landslides is in the first order cumulative and fractal distribution with slope aspect, and the fractal dimension values are minimum, approximately 0.72. Therefore, the main factors of landslide development are elevation, fault, et al, while slope aspect has the least influence.
Keywords: Bailongjiang River Basin; Landslide Disaster; Environment Factors; Variable Dimension Fractal
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