摘要
Abstract
Based on the geological disaster situation data,this study systematically analyzed the spatiotemporal distribution characteristics,spatial correlation characteristics,and trajectory of gravity center migration of geological disasters in the Yellow River Basin of China from 2013 to 2022.It employed methods including the global spatial autocorrelation model and the standard deviational ellipse model,with the support of ArcGIS software.The results show that the frequency of geological disasters in the Yellow River Basin generally shows a fluctuating decreasing trend,and its spatial distribution is characterized by"more in the south than in the north,and more in the west than in the east".In specific years,the frequency of geological disasters has significant spatial correlation,among which Gansu,Qinghai and Sichuan provinces are high-incidence areas of geological disasters.关键词
地质灾害/时空分布/空间关联特征/重心迁移轨迹/黄河流域Key words
Geological disasters/Spatiotemporal distribution/Spatial correlation characteristics/Trajectory of gravity center migration/Yellow River Basin分类
天文与地球科学
