我国地质灾害时空分布特征及演变分析  

Spatial and temporal distribution characteristics and evolution analysis of geological disasters in China

作　　者：何达 张斌[1] 段在鹏 阳富强[1] 林其彪 HE Da;ZHAN Bin;DUAN Zaipengn;YANG Fuqiang;LIN Qibiao(School of Environmental and Safety Engineering,Fuzhou University,Fuzhou 350108,Fujian,China;School of Economics and Management,Fuzhou University,Fuzhou 350108,Fujian,China;Fujian Emergency Management Research Center,Fuzhou University,Fuzhou 350108,Fujian,China;School of Computer and Information Engineering,Chuzhou University,Chuzhou 239000,Anhui,China)

机构地区：[1]福州大学环境与安全工程学院,福建福州350108 [2]福州大学经济与管理学院,福建福州350108 [3]福州大学福建省应急管理研究中心,福建福州350108 [4]滁州学院,计算机与信息工程学院,安徽滁州239000

出　　处：《资源信息与工程》2024年第5期30-35,共6页Resource Information and Engineering

基　　金：福建省社会科学基金(FJ2022B052);福建省科技计划项目(2023Y3001)。

摘　　要：本文分析了2011-2020年我国地质灾害时空分布特征及其重心移动轨迹。基于2012-2021年《中国统计年鉴》中的地质灾害灾情数据,使用分级地图展示地质灾害时空分布,再运用全局和局部空间自相关分析探讨地质灾害的空间关联性和聚集特征,最后利用ArcGIS平台对地质灾害的重心移动轨迹进行分析。结果表明:我国地质灾害的发生虽然总体呈下降趋势,区域分布呈“南多北少”态势,但空间聚集性逐年增强,且西南地区高-高聚集区域不断扩大,应对地质灾害高发区进行重点防控。The spatial and temporal distribution characteristics of geological disasters in China from 2011 to 2020 and their center of gravity movement trajectories were analyzed.Based on the geological disasters data in China Statistical Yearbook from 2012 to 2021,the hierarchical maps were used to display the spatial and temporal distribution of geological disasters,and then the spatial correlation and agglomeration characteristics of geological disasters are explored by global and local spatial autocorrelation analysis,and finally the center of gravity movement trajectories of geological disasters were analyzed by using the ArcGIS plaform.The results showed that:although the occurrence of geological disasters in China is generally declining,and the regional distribution is in the trend of"'more south and less north",the spatial agglomeration is increasing year by year,and the high-high concentration area in the southwest region is expanding,so the high-incidence areas of geological disasters should be targeted for prevention and control.

关 键 词：地质灾害 时间变化 空间分布 重心移动轨迹 空间自相关 

分 类 号：P694[天文地球—地质学]