Geological Engineering: Proceedings of the 1st International Conference (ICGE 2007)
80 Application of GIS-Based Logistic Regression Model and Cluster Method to Regional Landslide Risk Zoning
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Based on the data of the west area in new Wushan, the landslide disaster spatial zoning is studied with Logistic regression model and Cluster method. The technical route is as follows. Firstly, two databases were established with Geographical Information System technique. One is influence factors database which contains landform, physiognomy, litho logical character, groundwater, geological structure conditions, etc. The other is happened landslide section database. Secondly, the experimental area was compartmentalized 14450 cells by 10m×10m. Logistic regression model was built when each cell was taken one sample. At last, the Cluster Q analysis was used to obtain each cell's probability....