不同组合模型区域滑坡易发性及精度分析

王高峰, 郭宁, 邓兵, 田运涛, 叶振南, 陈宗良, 吕凤兰, 高幼龙. 2021. 不同组合模型区域滑坡易发性及精度分析. 西北地质, 54(2): 259-272. doi: 10.19751/j.cnki.61-1149/p.2021.02.023
引用本文: 王高峰, 郭宁, 邓兵, 田运涛, 叶振南, 陈宗良, 吕凤兰, 高幼龙. 2021. 不同组合模型区域滑坡易发性及精度分析. 西北地质, 54(2): 259-272. doi: 10.19751/j.cnki.61-1149/p.2021.02.023
WANG Gaofeng, GUO Ning, DENG Bing, TIAN Yuntao, YE Zhennan, CHEN Zongliang, LÜ Fenglan, GAO Youlong. 2021. Analysis of Landslide Susceptibility and Accuracy in Different Combination Models. Northwestern Geology, 54(2): 259-272. doi: 10.19751/j.cnki.61-1149/p.2021.02.023
Citation: WANG Gaofeng, GUO Ning, DENG Bing, TIAN Yuntao, YE Zhennan, CHEN Zongliang, LÜ Fenglan, GAO Youlong. 2021. Analysis of Landslide Susceptibility and Accuracy in Different Combination Models. Northwestern Geology, 54(2): 259-272. doi: 10.19751/j.cnki.61-1149/p.2021.02.023

不同组合模型区域滑坡易发性及精度分析

  • 基金项目:

    中国地质调查局地质调查项目(DD20160281、DD20190646)。

详细信息
    作者简介: 王高峰(1984-),男,高级工程师,从事地质灾害调查与评价。E-mail:wgf_cgcs303@163.com。
    通讯作者: 叶振南(1989-),男,工程师,在读博士,从事地质灾害调查评价与监测预警工作。E-mail:591941864@qq.com。
  • 中图分类号: P642

Analysis of Landslide Susceptibility and Accuracy in Different Combination Models

More Information
  • 为探索区域滑坡易发性评价模型的适用性和评价结果的合理性,以滑坡灾害高发的白龙江流域为研究区,首先选取坡度、地形起伏度、距断层距离、地层岩性、流域沟壑密度、植被指数等6项影响滑坡发生的孕灾因子作为易发性的评价指标,以研究区2 093处滑坡灾害点为样本数据,依据各指标条件下的信息量值、确定性系数值和证据权重值曲线突变规律,并结合滑坡面积及分级面积频率比曲线作为等级划分的临界值来确定因子分级状态;其次,基于指标因子状态分级和相关性分析结果,采用信息量法、确定性系数法、证据权法分别与逻辑回归组合的3种模型开展区域滑坡灾害易发性评价,并从模型结果、适用性和精度等方面采用多手段对3种组合模型进行比较和讨论。研究结果表明:在区域滑坡易发性评价方面,3组模型均表现较为理想,信息量和逻辑回归组合模型的预测精度为94.6%,其预测精度和准确性优于其他2种组合模型。笔者以白龙江流域中游及其岷江支流段为例,开展滑坡灾害易发性评价模型适用性、评价结果分析以及预测精度评价对比和研究等,成果可为该区地质灾害防灾减灾和国土空间用途管制规划决策提供参考。
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出版历程
收稿日期:  2020-06-10
修回日期:  2020-08-31

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