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将广东沿海陆地表层地质环境划分为构造稳定性、坡面稳定性和地基稳定性三个评价层面 ,其中包括由 9个指标构成的评价指标体系 ;确定了各指标的权重和五级分级标准和环境质量的五级标准 ;使用模糊数学综合评价模型将广东沿海 190个评价单元划分为 2 2个地质环境质量区。在灾害基本数据库和灾害时空分布分析的基础上 ,划分了 9个地质灾害一级分区及 32个二级分区 ,确定了地质环境、气候气象和人为活动因素三大类致灾主控因子 ;构造了三种地质灾害系统的概念模型和灾害预测指标体系框架 ,建立了地质灾害地理信息系统。
The terrestrial geological environment of coastal land in Guangdong is divided into three evaluation levels of structural stability, slope stability and foundation stability, including the evaluation index system consisting of nine indicators; the weight of each index and the five-level grading standards are determined Environmental quality of the five criteria; fuzzy comprehensive evaluation model using the Guangdong coastal 190 assessment units are divided into 22 geo-environmental quality area. Based on the analysis of the disaster basic database and the spatial and temporal distribution of disasters, nine geo-hazard primary zones and 32 second-level zones are divided into three main types of geological disasters, climate meteorological and anthropogenic factors; The conceptual model of three kinds of geological disaster systems and the framework of disaster prediction index system were established, and a geo-hazard geographical information system was established.