摘要
研究中使用了主要地质灾害 (地震、崩塌、滑坡、泥石流、地面沉降、地面塌陷、地基下沉、地裂缝、水土流失、港口淤积等 )大量的野外调查和文献资料的实际数据 ,根据综合分析并运用“灾害密度”和“灾害强度”2种指标 ,将广东沿海陆地划分出 9个地质灾害一级区及其所属的 3 2个二级分区 ,其中包括 10个重灾区、10个中灾区和 12个弱灾区。首次编制了基于数据库和GIS的 1∶5 0万广东沿海陆地主要地质灾害类型与区划图 ,为地质灾害发育规律的理论研究和国民经济建设的实际应用提供了基础信息和实际数据。分区的结果揭示了地质灾害空间分布特征及其与地质环境和人类活动的关系。
On the basis of data on geological hazards (earthquake, rockfall, landslide, mud flow, ground subsidence, surface collapse, base sinking, ground cracking, soil erosion and mud accumulation in port, etc.) collected from field investigation and literature, the coastal land area of Guangdong Province has been divided into 9 geological hazard regions consisting of 32 subregions by means of comprehensive analysis and two new indicators ('hazard density' and 'hazard intensity'). With the database and GIS, the 'Distribution and Division Map of Geological Hazards along the Coastal Land Area of Guangdong Province' has been compiled by the authors, which can be used as basic data for academic analysis of geological hazards and economic development in the area. The results of division may indicate the relationships of geological hazards, geoenvironment and human activity.
出处
《地球学报》
EI
CAS
CSCD
北大核心
2001年第5期453-458,共6页
Acta Geoscientica Sinica
基金
广东省"九五"重大科技攻关项目"广东沿海地质环境与灾害防治"( 960 90 3)项目资助
关键词
地质灾害
灾害密度
灾害强度
灾害区划
广东
地震
崩塌
泥石流
滑坡
geological hazards hazard density hazard intensity division along the coastal area of Guangdong Province
