高级检索

    运用信息量模型和层次分析法对金寨县地质灾害易发性评价的分析研究

    Susceptibility evaluation of geological hazards in Jinzhai County: An integrated analysis using information model and analytic hierarchy process

    • 摘要: 地质灾害易发性评价研究需要历年来发生的地质灾害基础数据作为支撑,而采用GIS评价方法可以显著提高效率和准确性。本文应用信息量模型和层次分析法综合评价方法,优选自然坡度、地形起伏、斜坡结构、与构造距离、岩土体类型、植被覆盖度、人类工程活动7类地质灾害评价因素,选择10 m × 10 m的规则栅格单元作为评价单元,将金寨县全域划分39203299个栅格单元进行信息量赋值评价,进而开展金寨县域地质灾害易发性研究,并结合专家经验进行易发性分级区划,为地质灾害防治工作提供基础依据。

       

      Abstract: Geological hazard susceptibility assessment requires foundational data from historical hazard events, where GIS evaluation methods significantly enhance efficiency and accuracy. This study employs an integrated approach combining the information model and analytic hierarchy process. Seven types of geological hazard evaluation factors were selected, including natural slope, terrain undulation, slope structure, distance from structure, rock and soil types, vegetation coverage, and human engineering activities. Using 10 m × 10 m grid cells as assessment units, the entire Jinzhai County was divided into 39, 203, 299 grids for information assignment. The susceptibility of geological hazards in Jinzhai County is further studied, and the classification and zoning of susceptibility are carried out based on expert experience, providing a scientific basis for geological hazard prevention and control.

       

    /

    返回文章
    返回