研究成果

Portraying Urban Functional Zones by Coupling Remote Sensing Imagery and Human Sensing Data

期刊名称: Remote sensing
全部作者: Wei TU*,Zhongwen HU,Lefei LI,Jinzhou CAO,Jincheng JIANG,Qiuping LI,Qingquan LI
出版年份: 2018
卷       号: 10
期       号: 1
页       码: 141
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Portrayingurbanfunctionalzonesprovidesusefulinsightsintounderstandingcomplexurbansystemsandestablishingrationalurbanplanning.Althoughseveralstudieshaveconfirmedtheefficacyofremotesensingimageryinurbanstudies,couplingremotesensingandnewhumansensingdatalikemobilephonepositioningdatatoidentifyurbanfunctionalzoneshasstillnotbeeninvestigated.Inthisstudy,anewframeworkintegratingremotesensingimageryandmobilephonepositioningdatawasdevelopedtoanalyzeurbanfunctionalzoneswithlandscapeandhumanactivitymetrics.Landscapesmetricswerecalculatedbasedonlandcoverfromremotesensingimages.Humanactivitieswereextractedfrommassivemobilephonepositioningdata.Byintegratingthem,urbanfunctionalzones(urbancenter,sub-center,suburbs,urbanbuffer,transitregionandecologicalarea)wereidentifiedbyahierarchicalclustering.Finally,gradientanalysisinthreetypicaltransectswasconductedtoinvestigatethepatternoflandscapesandhumanactivities.TakingShenzhen,China,asanexample,theconductedexperimentshowsthatthepatternoflandscapesandhumanactivitiesintheurbanfunctionalzonesinShenzhendoesnottotallyconformtotheclassicalurbantheories.ItdemonstratesthatthefusionofremotesensingimageryandhumansensingdatacancharacterizethecomplexurbanspatialstructureinShenzhenwell.Urbanfunctionalzoneshavethepotentialtoactasbridgesbetweentheurbanstructure,humanactivityandurbanplanningpolicy,providingscientificsupportforrationalurbanplanningandsustainableurbandevelopmentpolicymaking.