Vulnerability Evaluation of Slope-type Geological Hazards Based on I-LR Model Coupling
Taking Xundian County,Yunnan Province as the research object,eight inducing factors that have an impact on the occurrence of geological hazard iade were selected as evaluation indicators,and based on the GIS platform and SPSS 26.0 software,the information quantity model and logistic regression model were coupled to divide the geological disaster susceptibility in the study area into four levels:very low susceptibility,low susceptibility,medium susceptibility and high susceptibility. The results showed that the area proportions of the four study grade zones were 0.55％,19.37％,50.96％ and 29.12％,respec-tively. The test value of the offline area (AUC) accuracy of the characteristic curve (ROC) is 0.721,indi-cating that the evaluation accuracy is high. The method of coupling information quantity method and logistic regression can be applied to geological disaster risk assessment,and provide scientific basis for disaster pre-vention and mitigation and geological disaster prevention in Xundian County.
万方数据
维普
