灾害学2011，Vol.26Issue(2)：39-44,6.
湖南怀化市坡面地质灾害发育特征与人为致灾因子分析
Analysis on Development Characteristics of Slope Geological Calamity and Artificial Disaster-causing Factors in Huaihua City, Hunan Province
摘要
Abstract
Huaihua City, located in the southwest of Hunan province, is prone to slope geological calamities as collapse, landslide, etc. due to its complex geological structure and fragile geological environment. The interlaced active fault is geological structure base of inoculation of slope geological calamity in the city, and strong weathering and loose surface are the material source, precipitation and abundant runoff are the dynamic condition and rainstorm and flood are inducing factors. Human activities, such as hydropower engineering construction, exploitation of mineral resources, slope excavation, vegetation deterioration, increase the pressure to geological environment,destroy the ecological balance, and become the important disaster-causing factors. Collapses and landslides in the city are mainly of soil types in weathering residual slide rock in cretaceous red bed, and are presented as an wavy increasing trend in the past 15 years, especially in 2001 and 2004. Spatial distribution of the calamities is concentrated on the valley slopes along the Yuan River and its tributaries and steep slope of low mountain area of 100 ～ 450 m.关键词
坡面地质灾害/发育特征/致灾因子/湖南省怀化市Key words
slope geological calamity/ development characteristic/ disaster-causing factor/ Huaihua City of Hunan Province分类
天文与地球科学引用本文复制引用
刘江龙,柳建新,吴湘滨,申志军..湖南怀化市坡面地质灾害发育特征与人为致灾因子分析[J].灾害学,2011,26(2):39-44,6.基金项目
湖南省国土资源厅地质灾害调查资助项目"湖南省怀化市地质灾害防治规划" （）
