摘要
广东省鹤山市地质灾害类型主要有崩塌、滑坡和泥石流。区内地质灾害的发育特征主要受地质构造、地形地貌、地层岩性、大气降雨以及人类工程活动的影响。地质构造、地形地貌及地层和岩石类型是地质灾害形成的内因,而降雨及人类工程活动则是引发地质灾害的外因。地质灾害的防治措施应以预防为主,工程治理、生物防治与搬迁避让相结合。
The main geological hazards include landfall, landslide and debris flow in Heshan City. Their developments are mainly controlled by geological structures, topography, geosphere and rocks characteristics, rainfalls and human activity, the former three factors being internal and the latter two, external. Time of occurrence of geological disasters in the region with heavy rain disaster is almost synchronous; especially in high-intensity rainfall seasons, which is the most important factor for a variety of geological disasters. In many villages in hilly areas, factories, transportation and utilities along the water conservancy facilities in the vicinity of the mountains at higher elevations, where travel is difficult or uninhabited by human, the frequency and impact of disasters are considerably smaller. Prevention and control of geological disasters should be based on ＂people-oriented, mainly to prevent, control with comprehensive management＂ approach.
出处
《热带地理》
北大核心
2009年第4期340-344,共5页
Tropical Geography
基金
"广东省鹤山市地质灾害调查与区划"项目部分内容(粤国土资地环函〔2007〕26号)
关键词
地质灾害
发育特征
防治
鹤山市
geological hazards
distribution features
prevention
Heshan City
