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综合滑坡解译、滑坡空间数据库和管理地理信息系统成果,科学选取滑坡危险性和易损性评价因子,运用统计学的层次分析算法、G IS缓冲区分析、叠加分析、统计分析、三维分析等对滑坡体因子量化,进行了滑坡的风险评价和易损性评价。依据风险分级和易损性分级标准,通过克里金插值、重分类、数字转换、专家干预修正等实现风险性分区和易损性分区。以0.5作为滑坡风险评价中风险性和易损性属性数据,通过线性叠加最终实现了滑坡风险评价并划分出高、中、低3级滑坡风险区。
Comprehensive landslide interpretation, landslide spatial database and management of geographic information system results, the scientific selection of landslide hazard and vulnerability assessment factor, the use of statistical analysis of hierarchical algorithms, G IS buffer analysis, overlay analysis, statistical analysis, three-dimensional analysis For the landslide body factor quantification, landslide risk assessment and vulnerability assessment were carried out. According to risk classification and vulnerability classification standards, risk partitioning and vulnerability partitioning are implemented through Kriging interpolation, reclassification, digital conversion and expert intervention and revision. Taking 0.5 as attribute data of risk and vulnerability in landslide risk assessment, landslide risk assessment was finally achieved by linear superposition, and landslide risk zones of high, medium and low grade 3 were identified.