基于GIS的空间TOPSIS模型的安徽省休宁县滑坡易发性评价
Assessment of landslide susceptibility in Xiuning County,Anhui Province using GIS-based spatial TOPSIS model
袁亚南 1喻根 1方斌2
作者信息
- 1. 合肥工业大学资源与环境工程学院,安徽合肥 200009
- 2. 安徽省地质矿产勘查局332地质队,安徽黄山 245000
- 折叠
摘要
文章在常规 TOPSIS(technique for order preference by similarity to ideal solution)模型的基础上提出空间TOPSIS模型,以安徽省休宁县为例,采用地理信息系统(geographic information system,GIS)技术对安徽省休宁县的滑坡易发性进行评价.研究表明:基于GIS的空间TOPSIS模型的滑坡易发性评价,能够处理和分析滑坡评价因子以及滑坡易发性的空间变化特征;评价结果与休宁县境内已经发生滑坡的空间分布较为吻合,评价结果较好.基于GIS的空间TOPSIS模型在滑坡易发性评价中具有较好的适用性.
Abstract
Based on the conventional technique for order preference by similarity to ideal solution(TOP-SIS)model,this paper proposes a spatial TOPSIS model,and evaluates the landslide susceptibility in Xiuning County,Anhui Province using geographic information system(GIS).The results show that the landslide susceptibility assessment using GIS-based spatial TOPSIS model can process and analyze the spatial variation characteristics of landslide-affecting factors and landslide susceptibility.The re-sulted landslide susceptibility is in good agreement with the spatial distribution of landslides occurred in Xiuning County.The GIS-based spatial TOPSIS model has a good applicability in the assessment of landslide susceptibility.
关键词
滑坡/地理信息系统(GIS)/TOPSIS模型/易发性评价/休宁县Key words
landslide/geographic information system(GIS)/technique for order preference by similari-ty to ideal solution(TOPSIS)model/susceptibility assessment/Xiuning County引用本文复制引用
基金项目
安徽省公益性地质调查资助项目(2011-g-33)
出版年
2024
NETL
NSTL
万方数据