简介:Thispapercalculatestheland(includingwaterarea)requirementforfoodconsumptioninbothbalancedandactualdietinChinabyecologicalfootprintanalysis.Todeterminewhetherlogicalandactualfooddemandsarewithinnaturalregenerativeability,carryingcapacity(excludingforestryproduction)isalsocalculated.Resultsshowthatactualdietpatternswereecologicallyfriendlyintheperiodof1982-2004inChina,mainlybecauseoftheruralmoderatedietpatterns.Butactualpercapitafootprintalreadyoverranitscorrespondinglogicvalueof0.976hainurbanareasin2002.ProductiveareasforfoodproductioncansatisfythelandrequirementforactualdietpatternsduringtheresearchingperiodinChina,neverthelesscannotsatisfythatforbalanceddietpatternorsolvetheproblemofunbalancedecologicalfootprint.ThecontinualrisingecologicalfootprintoffoodconsumptioninbothruralandurbanareasindicatesthatpercapitafootprintwillkeeponincreasinginChinaandevenmaybemorethanthesuggestedlogicvalueifnorelevantcountermeasuresaremadetoregulatedietpatterns.Strictlyspeaking,Chinaisfacingfoodshortage,bothinqualityandinquantity.
简介:Economicglobalizationhaspromotedtheformationofglobalproductionnetwork,andcorrespondinglythehighqualityenvironmentalfactorsarereconfiguredbehindthephysicalcommoditiesexchange.ExporttradenotonlydrivesChina'seconomicgrowth,promotesindustrialupgradingandtechnologicalprogress,butalsomayhaveanegativeimpactontheenvironment.Afterreviewingandsummarizingtheexistingrelevantliteratures,thepapercollectstherequiredstatisticdatafrom2003to2006andusesthepaneldatamodeltomeasuretheenvironmentaleffectsofexporttradeintheYangtzeRiverDelta.TheresultsshowthattheexporttradeofYangtzeRiverDeltahasanegativeimpactontheenvironment.Whenthevariablesofeconomicscale,economicstructurearefixed,withtheexporttradegrowthof1%,theindustrialsulfurdioxideemissionandindustrialwastewateremissionwillincreaseby0.12%and0.23%respectively.Sowemustpayseriousattentiontothenegativeeffects,andpromoteregionalsustainabledevelopmentrapidlythroughadjustingtheexportstructureandstrengtheningenvironmentalregulations.
简介:Theanalyticalmethodoftotalresourcereallocationeffectisanevolutionoftheanalyticalmethodofthefactorsofeconomicgrowth.SincethemarketizationreforminChinain1978,marketmechanismhasplayedamoreandmoreimportantroleinresourceallocation,andChineseeconomyhasdevelopedgreatly,whichiscalled'theChineseMiracle'.ThispaperanalyzestheeconomicgrowthinChinafrom1978to2004withtheanalyticalmethodoftotalresourcereallocationeffect.Theresultshowsthattheannualgrowthrateoftotalresourcereallocationeffectwas0.2%,whichwas5.1%ofthecomprehensiveproductivityand0.21%ofthegrossoutputgrowth,i.e.thetotalresourceallocationplayedaweakroleintheeconomicgrowthinChina.WhenanalyzingitinChenery'smultinationalmodel,wefindthatChinesecomprehensiveproductivitygrowthratewashigherthanthatinalltheincomephasesofthemodel,butthetotalresourceallocationeffectwasobviouslylowerthanthatinalltheincomephasesofthemodel.ItindicatesthatthetotalresourceallocationinChinahasagreatpotential,andthattoacceleratemarketizationreformisoneoftheimportantissuesforChineseeconomicdevelopment.
简介:Basedonthespatialeconomytheoryandtheexploratoryspatialdataanalysis(ESDA)technology,thispa-perstudiesthespace-timedynamicsofregionalpercapitaGDPintheYangtzeDelta.Asampleof74regionsintheYangtzeDeltaovertheperiodof1994to2004providesclearevidenceofglobalandlocalspatialautocorrelationaswellasspatialheterogeneityinthedistributionofregionalpercapitaGDP.Thedynamismofregionsisinvestigatedbyexploringthespatialpatternofregionalgrowth,comparedwiththatbefore1997,theeconomicgrowthdisparitiesamongShanghai,ZhejiangandJiangsuprovinceshavedecreased,sohavetheinsideregionsofZhejiangProvince,whileitisoppositetotheinsideregionsofJiangsuProvince.