摘要
为探究福建东南沿海地区的地质灾害易发性评价方法,为该地区的地质灾害防治工作提供科学依据.采用划分单元格的方法并结合熵值法对关键影响因素如地形坡度、岩性硬度、植被覆盖率、年降水量和地质构造活动度等进行了定量分析.研究区域选择福州、泉州和厦门周边区域,基于收集的地理和地质数据,通过权重体系建立,进行了综合评估.结果表明:各评价单元的地质灾害易发性评分不同,其中福州周边区域的平均地形坡度为 25°,泉州为 35°,厦门为 15°,年降水量分别为 1500、2000、1200 mm.据此,制定了具体的地质灾害预防措施.该评价方法能有效识别高风险区域,为地方政府和相关机构制定针对性的地质灾害防治策略提供了准确的数据支持和理论依据.
Abstract
The aim of this study is to explore the evaluation method of geological hazard susceptibility in the southeastern coastal area of Fujian,with the aim of providing scientific basis for the prevention and control of ge-ological hazards in the region.The method of dividing cells and combining entropy method are used to quantita-tively analyze key influencing factors such as terrain slope,rock hardness,vegetation coverage,annual precipitati-on,and geological activity.The research area includes the surrounding areas of Fuzhou,Quanzhou,and Xiamen.Based on the collected geographical and geological data,a comprehensive evaluation was conducted by establis-hing a weight system.The results showed that the geological hazard susceptibility scores of each evaluation unit were different,among which the average terrain slope of Fuzhou is 25°,Quanzhou is 35°,Xiamen is 15°,and the annual precipitation is 1500,2000,1200 mm,respectively.Based on this,specific geological disaster prevention measures have been formulated.The research conclusion indicates that this evaluation method can effectively i-dentify high-risk areas,providing accurate data support and theoretical basis for local governments and relevant institutions to formulate targeted geological disaster prevention and control strategies.
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