摘要
甘肃省境内的白龙江流域属西秦岭山地,地质构造复杂,地形切割强烈,地貌类型多样,地貌起伏变化大,软弱岩土分布广泛,生态环境十分脆弱,暴雨和人类活动频繁,地质灾害极为发育,是中国四大滑坡、泥石流集中高发区之一。本文针对甘肃省的白龙江流域的滑坡、崩塌、泥石流这三类地质灾害发育特征及分布规律进行系统研究,基于研究区各县区地质灾害详细调查成果,采用gis建立的数据库对主要地灾的发育特征及分布规律进行统计分析,探究区域地质、人类活动、地形地貌等因素与地质灾害之间的关系,查明地质灾害发生的规律,对影响地质灾害发生的主控因素进行分析。成果和结论可作为区内地质灾害防治的参考依据,为促进区内防灾减灾,减少财产损失和人员伤亡做出贡献。
The Bailongjiang River Basin in Gansu Province belongs to the west Qinling mountainous area. The geological structure is complex,the terrain is strong,the landforms are varied,the landforms fluctuate greatly,the weak soil is widely distributed,the ecological environment is very fragile,the heavy rain and the human activities are frequent and the geological disasters are extremely Development,is one of China＇s four major landslides,debris flow concentrated high incidence area. In this paper,the characteristics and distribution of these three types of geological disasters such as landslide,collapse and debris flow in Bailongjiang River Basin of Gansu Province are systematically studied. Based on the detailed investigation results of geological disasters in each district of the study area,the database developed by GIS is used to develop the main disaster Characteristics and distribution of the geological hazards,to explore the relationship between regional geological,human activities,topography and other factors and geological disasters,to identify the occurrence of geological disasters,the impact of geological disasters on the main factors of the analysis. Results and conclusions can be used as a reference for the prevention and control of geological disasters in the region,to contribute to disaster prevention and mitigation,reduce property losses and casualties.
出处
《地下水》
2017年第3期174-176,179,共4页
Ground water
基金
中国地质调查局项目:"甘肃省白龙江流域主要城镇环境工程地质勘查"(1212011089083)
关键词
白龙江流域
地质灾害
发育特征
分布规律
Bailong River Basin
geological disaster
developmental characteristics
distribution law
