J.Geogr.Sci.2023,33(4):760-778DOI:https://doi.org/10.1007/s11442-023-2105-y©2023SciencePressSpringer-VerlagDynamicchangesinurbanlandspatialinequalityunderthecore-peripherystructureinurbanagglomerationsFANGXiaoqian1,SUDan1,WUQing1,WANGJiayi1,ZHANGYangjian2,LIGuoyu1,3,*CAOYu11.DepartmentofLandManagement,SchoolofPublicAffairs,ZhejiangUniversity,Hangzhou310058,China;2.InstituteofGeographicSciencesandNaturalResourcesResearch,CAS,Beijing100101,China;3.DepartmentofForestryandNaturalResources,PurdueUniversity,WestLafayette,IN47907,USAAbstract:Relativelycoordinateddevelopmentamongcitiescantypicallypromotetheintegra-tionofthewholeurbanagglomeration,whileurbanizationoflandhasbeenfoundimportanttoeconomicdevelopmentindevelopingcountries.Numerousstudieshavemeasuredtheurbanlandexpansioninurbanagglomerations.However,urbanlandspatialinequalityunderaspecificspatialstructureremainspoorlyunderstood.Here,wecombinedtheβ-convergencemodelandthecore-peripherystructuretoexplorethedynamicchangesinurbanlandspatialinequalityinurbanagglomerations.TheYangtzeRiverDeltaUrbanAgglomeration(YRDUA)inChinawasselectedasthestudyarea.Indicatorsofurbanlandhavebeenappliedincon-junctionwithamodifiedconditionalβ-convergencemodel,whiletheexistenceofthecore-peripherystructurewastestedbyanalyzingcoefficientsofthecontrolvariable.There-sultsshowthatalthoughthespatialinequalityofurbanlandareahaddecreasedduring2000–2020,thewholeYRDUAhadstillshownanobviouscore-peripherystructure.Com-paredwithurbanlandarea,thespatialinequalityofurbanlandeconomicdensityandpopu-lationdensityhaddecreasedmorerapidly,andthecore-peripherystructurewaslessobvious.Ourfindingscanhelptoimproveourcurrentunderstandingofurbanagglomerationandserveasascientificreferenceforthecoordinateddevelopmentofurbanagglomerations.Keywords:urbanagglomeration;urbanexpansion;core-peripherystructure;convergenceanalysis;spatialine-quality1IntroductionOverthelastseveraldecades,rapidurbanizationandurbanregionalizationhavebecomeaglobalphenomenon(Wangetal.,2012).In...