Assessment of landslide susceptibility in Xiuning County, Anhui Province using GIS-based spatial TOPSIS model

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Aug.2024, Vol.47 No.8: 1087-1093, 1099

DOI: 10.3969/j.issn.1003-5060.2024.08.012

Authors

YUAN Yanan $ ^{1} $, YU Gen $ ^{1} $, FANG Bin $ ^{2} $

(1. School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; 2. No. 332 Geological Team, Bureau of Geology and Mineral Exploration of Anhui Province, Huangshan 245000, China)

Abstract and Keywords

Abstract: Based on the conventional technique for order preference by similarity to ideal solution (TOPSIS) 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 resulted 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.

Keywords: landslide; geographic information system(GIS); technique for order preference by similarity to ideal solution(TOPSIS) model; susceptibility assessment; Xiuning County

作者信息

袁亚南 $ ^{1} $，喻根 $ ^{1} $，方斌 $ ^{2} $

(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)

摘要和关键词

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。

关键词: 滑坡；地理信息系统(GIS)；TOPSIS模型；易发性评价；休宁县

Funding

安徽省公益性地质调查资助项目（2011-g-33）

合肥工业大学学报(自然科学版)

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