摘要
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。
By synthesis of landslide interpretation, landslide spatial database and management of geographic information system （GIS） outcomes, landslide risk and vulnerability assessment factors were scientifically selected. The author completed risk assessment and vulnerability assessment by analytic hierarchy process of statistical analysis algorithms, GIS buffer analysis, superposition analysis, statistical analysis and three-dimensional analysis to quantify the landslide factors. Based on vulnerability rank and risk classification, Kriging interpolation, re-classification, digital conversion and expert interference correction, the zoning of risk and vulnerability was implemented. Defining 0.5 as attribute data of the landslide risk and vulnerability and by linear superposition, landslide area assessed can be divided into three landslide risk areas： high risk area, medium risk area and low risk area.
出处
《自然灾害学报》
CSCD
北大核心
2011年第3期25-30,共6页
Journal of Natural Disasters
基金
国家自然科学基金(50604021)
