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1、ProgressinPhysicalGeography29,4(2005)pp.548–567GIS-basedlandslidehazardassessment:anoverviewWangHuabin1,2,*LiuGangjun3,XuWeiya2andWangGonghui11ResearchCentreonLandslides,DisasterPreventionResearchInstitute,KyotoUniversity,Gokasho,Uji,Kyoto611-0011,Japan2GeotechnicalInstitute,HohaiUniversity
2、,Nanjing,210098,China3SchoolofMathematicalandGeospatialSciences,RMITUniversity,Melbourne,3000,Victoria,AustraliaAbstract:Inrecentyears,landslidehazardassessmenthasplayedanimportantroleindevelopinglandutilizationregulationsaimedatminimizingthelossoflivesanddamagetoproperty.Avarietyofapproach
3、eshasbeenusedinlandslideassessmentandthesecanbeclassifiedintoqualitativefactoroverlay,statisticalmodels,geotechnicalprocessmodels,etc.However,thereislittleworkonthesatisfactoryintegrationofthesemodelswithgeographicinformationsystems(GIS)tosupportslopemanagementandlandslidehazardmitigation.Th
4、ispaperdealswithseveralaspectsoflandslidehazardassessmentbypresentingafocusedreviewofGIS-basedlandslidehazardassessment:itstartswithaframeworkforGIS-basedassessmentoflandslidehazard;continueswithacriticalreviewofthestateoftheartinusingGISanddigitalelevationmodels(DEM)formappingandmodellingl
5、andslidehazards;andconcludeswithadescriptionofanintegratedsystemforeffectivelandslidehazardassessmentandzonationincorporatingartificialintelligenceanddataminingtechnologyinaGIS-basedframeworkofknowledgediscovery.Keywords:GISmodelling,hazardassessment,landslide,thestateoftheart.IIntroductions
6、trengthofslope-formingmaterials.AsoneofLandslides,definedasthemassmovementofthemajornaturalhazards,landslidesclaimrock,debrisorearthdownaslope(Cruden,peopleslivesalmosteveryyearandcause1991),canbetriggeredbyvariousexternalhugepropertydamageinmountainousareasstimuli.Theseincludeintenserainfal
7、l,earth-(Hansen,1984;ChungandFabbri,1995).quakes,water-levelchanges,stormwavesorItisestimatedthat,in1998,about180000rapidstreamerosionwhichcausearapidgeologicalhazardssuchasavalanches,land-increaseinshearstressordecreaseinshearslidesanddebrisflowsindiffe
