摘要
区域地质灾害点在孕灾背景条件下呈现出一定的空间分布特征,通过GIS空间数据分析的方法研究灾害点空间数据的内在规律,可以准确、直观的揭示其空间分布特征。本文以兴山县滑坡地质灾害数据为基础,通过GIS软件,采用趋势面分析法、最近邻分析法、核密度分析法三种方法,分别对兴山县滑坡灾害的数量变化趋势、空间分布模式、空间密度特征进行了分析。结果表明,GIS空间分析结果与实际情况相符,可以为地质灾害分析评价提供一定的理论依据和实际指导。
The regional Geological disaster points show certain spatial distribution feature under the condition of disaster-inducing background.The inherent law of spatial data of disaster points can be accurately and intuitively revealed through the analysis of GIS spatial data.In this paper,based on the data of sliding disaster in Xingshan,we analyze the quantitative change trend,spatial distribution model and spatial density feature of sliding disaster in Xingshan by trend surface analysis,nearest neighbor analysis and kernel density analysis through GIS.The results show the GIS spatial analysis consistent with the actual situation,which can provide some theoretical basis and practical guidance for the analysis and evaluation of disaster.
作者
宋渊
张恩博
任达
SONG Yuan;ZHANG En-bo;REN Da(Hubei Center of Geological Environment;Hubei Key Lab of Resource&Eco-Environment Geology,Wuhan 430034;Institute of Geophysics&Geomatics,China University of Geosciences(Wuhan),430074)
出处
《云南地质》
2022年第3期382-388,共7页
Yunnan Geology
基金
湖北省重点研发计划项目(2021BCA219)
湖北省地质局科技项目(KJ2022-14)。
关键词
空间分析
趋势面分析
最近邻分析
核密度分析
GIS
滑坡
湖北兴山
Sliding
Spatial Analysis
Trend Surface Analysis
Nearest Neighbor Analysis
Nuclear Density Analysis
GIS
