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1、中国_大城市病_预防及其治理（_largeurbandiseasespreventionandcontrolChina_）ThepopulationofthemodelisscatteredorconcentratedindifferentdistributionstatesCreatedifferent/distributedbenefitsof0.So,asthebasicelementand/thefirstThepopulationofthe0parentpopulationusuallymovesandflowsthroughthepopulation,Movefromlowpro
2、ductivityregionsorsectorstohighproductivityregionsordepartmentsFromthescatteredstateoftheruralareastothecity,thecitychangedintoaclusterTheconcentrationofcities(i.e.urbanization),therebyincreasing/productivity0,Createhigherbenefits(i.e.agglomerationbenefits)andpromoteeconomicdevelopment.Therefore,un
3、dernormalcircumstances,themigrationofruralpopulationtothecityTheprocessitselfisalsoakindofproductivefactorspaceallocationefficiencyProcess,theprocessofcreatingagglomerationeconomyandthepromotionofeconomicdevelopmentUsingprocess.Intheprocessofurbanization,theruralpopulationisaccompaniedThemigrationt
4、othecitywillnotonlyprofoundlychangeitself,butalsoItwillleadtothewholesocialandeconomicactivities,productionefficiencyandinnovationability,Thechangeandpromotionoflifestyleandvalues,etc.UrbanizationisthebasicmotiveforceandinevitabletrendofsocialandeconomicdevelopmentPotentialisalsotheobjectivelawandi
5、mportantsignofthedevelopmentofhumansociety.Inparticular,suchacountryhasexperienced30yearsofreformandopeningupandthroughTherapiddevelopmentofeconomicgrowthinthepopulationoflargecountries,large-scaleurbanizationRapiddevelopmentwillnotonlybecomeanimportantfactorinpromotingChina'seconomicdevelopmentPow
6、er,andit'salsoimportantforworlddevelopment.0urbanizationof2./isinevitableforurbanizationandurbandevelopmentResultUndertheimpetusofurbanization,oncethecityisformed,itbecomesadistrictDomaindevelopment/growthpole0.Especiallybigcities,1,becauseofthebigThesizeof#highdensity#diversifiedpopulation,cultura
7、ldiversityandheterogeneity,Liquidityandothercharacteristics,soastoformagreaterattractionandagglomerationEconomicbenefito.Ofcourse,intheprocessofurbandevelopment,duetothepopulation,Economicgrowthalsoincrease
