现代地质Issue(5)：1077-1086,10.
三峡库区滑坡规模与发育特征研究
Research on Development Characteristics and Size of Landslides in the Three Gorges Area
摘要
Abstract
The research on development characteristics and size of landslides has a great significance to land-slide risk assessment and geomorphic evolution analysis.In this paper,the Three Gorges area was selected as a study area,and landslides’development characteristics and parameters such as area,volume,thickness and size density were analyzed using GIS technology and statistical method,and the variable dimension fractal theory was used to study fractal characteristics of landslide size and geological environmental factors.The results show that the regional landslide has the spatial pattern and cluster feature for soil-and rock-type landslides,and different types of landslides have characteristics of agglomeration in the distribution and no uniformity in the size.The re-lations of frequency to size and frequency to velocity of landslides exhibit the power law,indicating that land-slide system has the property of self-organized criticality.Furthermore,the results indicate that landslide size has the variable dimension fractal characteristics,revealing the sensitivity relationship between landslide size and geological environmental factors.The results are important to improve understanding of the development law and risk assessment of landslides.关键词
滑坡/面积/体积/幂律规则/分形特征/三峡库区Key words
landslide/area/volume/power law/fractal characteristic/Three Gorges area分类
天文与地球科学引用本文复制引用
彭令,徐素宁,彭军还..三峡库区滑坡规模与发育特征研究[J].现代地质,2014,(5):1077-1086,10.基金项目
中国博士后科学基金资助项目（2014M560103）；国家“863”计划资助项目（2012AA121303）；国家发改委卫星及应用产业发展专项项目（发改办高技［2012］2083号）。 （）
