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简介：Withtheexpansionoftheurbanization,theurbanagglomerationisformingintheregionandshowingaunificationtrend.Thedevelopmentofurbanagglomerationanditsunificationdependsonthecoordinationofthedivisionoflabor.Itissignificanttothefurtherdevelopmentofurbanagglomerationthatthecoordinationmechanismwasconstructed.TakingthesouthSichuanurbanagglomerations(SSUA)asanexample,theresearchanalyzesthecurrentsituationandproblemsofcities’unification,studiestheindustrialdistributionlayoutanddesignstheframeworkoftheregionallycoordinateddevelopment.Thentheauthorconstructsthecoordinationmechanismofurbanagglomerationdevelopmentandpresentsstrategiesforthecoordinateddevelopmentofurbanagglomerationanditsunification.

简介：FromDecember1998toJune1999,theChinaMarketSupervisionundertheStateStatisticsBureauconductedsurveysontheconsumptiontrendsandlivesofChina’surbanresidentsamong5,000consumersin20cities,includingBeijing,Shanghai,Chengdu,Guangzhou,Wuhan,Naming,Qingdao,Dalia...

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简介：ThegoalofthisworkwastoevaluateChina’surbangreendevelopment.Tentypicalcitiesbelongingtofourtypeswerechosenascasestudies:Beijing,Shanghai,Suzhou,Wuxi,Nanjing,Xi’an,Wuhan,Nanning,WeihaiandYichang.WeusedtheCLDmodelfromsystemdynamicstoanalyzethecomplexrelationshipsbetweenvariouselementsofcitydevelopment,includingresourcesandenvironmentalconditions,degreeofsocialdevelopment,economicdevelopmentandadministrativecapacity.Thesefourelements—environmental,social,economic,andadministrative—wereusedtobuildagreendevelopmentassessmentframeworkforChinesecities.Uponbuildingtheevaluationsystem,47evaluationindicatorswerechosen.Theresultsshowthatthecomprehensivevaluesforgreendevelopmentinthesetenrepresentativecitieswerealllow,meaningthatthereisalargegapbetweenurbandevelopmentandgreensustainabledevelopment.Manyaspectsofgreendevelopmentneedtobesubstantiallyenhanced,suchasgoverningenvironmentalproblems,alleviatingresourcepressures,enhancingeconomicefficiency,andincreasingthegreeneconomy.

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简介：Chinaisoneofthecountrieswiththemostseriousfloodingdisasters.InChina,above70%ofbigcities,50%ofpopulationand75%ofindustrialandagriculturaloutputvaluearedistributedineasterncoastalareaswithseriousflooding.Therefore,enhancementoftheoreticalstudyandexperiencesummarizationofurbanfloodcontrolisofgreattheoreticalandpracticalsignificance.Aseconomyisdevelopingrapidly,urbanscaleisexpandingfast,andurbanfloodcontrolstandispromoted.Urbanfloodcontrolcallsfornewconceptandmethods.Thispapermakesasystematicsummarizationofconceptevolutionandadvancedmethodsconcerningurbanfloodcontrolathomeandabroad.Theconceptofurbanfloodcontrolhastransformedfromsimplefloodcontrolanddrainagetocoexistencewithanduseofflood.Floodcontrolmeasureshavetransferredformemphasisuponengineeringonestoprioritytobothengineeringandnon-engineeringones,withspecialattentiontoecologicalfloodcontrol,suchasmakingfulluseofecologicalrevetment,ecologicalrealignmentofariver,multi-objectivemanagementofurbanflooddetentionregion,turningfloodintoresourcesandutilizationofwetlands.

简介：Urbanindustrialwastelandmighthavebeenaffectedbytoxicandhazardoussubstancesemittedbytheoriginalproductionactivities.Consequently,pollutionsurveyanalysisandenvironmentalriskassessmentshouldhavebeenconductedbeforeredevelopment.Inthepaper,bysurveyingsoilsamplefromwastedump,tailingpondandsurroundingareainLead-ZincMine,fuzzymathematicsmethodwasadoptedtoestablishFuzzyComprehensiveEvaluationmodelastoanalyzeconditionsofsoilpollutionbyheavymetalandsoilnutrient.ItwouldprovideimportantscientificbasisforpollutioncontrolandecologicalrestorationintheminingareaandthuscarryoutcomprehensiveecologicalrestorationinLead-ZincMine.FuzzyComprehensiveEvaluationresultsindicatedthatsoilpollutionbyheavymetalweresevere.Itcouldgiveprioritytodevelopforestry.MostdeficientsoilnutrientelementswereavailablePandN.Duetothelackofnitrogenandphosphorus,itwasnecessarytoimprovethesoilbeforephytoremediation.

简介：Temporalmapisanisochronalmaptakingtimeasameasuringunit.Ittracesouttheisochronesaccordingtothediscrepancyofthetimedistancebetweenthedifferentsitesfromtheoutsideofthecityandthedowntown.Itcanbeclearandintuitionaltoshowthedifferenttemporalrelationshipsbetweentheoutsideofthecityandthecitycentrewiththetemporalmap.Theproblemoftrafficcongestion,withitspotentialforurbanchaos,hasincreaseddramaticallywithagrowingnumberofvehiclesandthecontinuingaerialexpansionofGuangzhou.Bothtransitrid-ersanddriversfinditisagreatdifficultytotrytoacquirethenecessaryinformationfromurbanspatialmovements.Valuabletimeislostduetotheabsenceofgoodtransportationinformation.So,thepaperanalyzesacaseinGuang-zhoucommunicationwithGeographicInformationSystem(GIS),andusesthemostpopularvehicles,includingbusesandtaxisthatareusedtomeasurethetemporaldistanceinthecity,andthenproposesthedesignofanewmapthatbetterre?ectsthestatusofurbancommunication,andattemptstochangetherelationshipbetweenonepointandanotherpointoftravel,reducingtheamountoftimeallocatedtosuch,oftencomplex,movements.ThispaperalsopointsouttheobstaclesassociatedwithGuangzhou'sexistingtrafficcongestion,andputsforwardastrategyaimedatbetterdefiningtheneedoflinkingthetemporalmaptospatialmapofGuangzhou.

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简介：ThispapercalculatestheindustrialcarbonemissionsoftheYangtzeRiverDeltaurbanagglomerationovertheperiod2006-2013.AnempiricalanalysisisconductedtofindouttheinfluencingfactorsofindustrialcarbonemissionsoftheYangtzeRiverDeltaurbanagglomeration,usingaspatialDurbinpanelmodel.Theresultsshowthatcitieswithlargerindustrialcarbonemissionsoftenenjoylowannualgrowthrates,whilethecitieswithsmalleronesenjoyhigherannualgrowthrate;Thereexistsacomparativelystrongpositivecorrelationinspaceinpercapitacarbonemission;urbanization,andtotalpopulation.GDPpercapitaandinternationaltradearethemaininfluencingfactorsofindustrialcarbonemissions;Therearespatialspillovereffectsoninternationaltradeandurbanizationofneighboringcities,whichhaveasignificantimpactonlocalindustrialcarbonemissions.