学科分类
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11 个结果
  • 简介:I'mverypleasedtobehereatthissidemeeting,China'sGreenTransformation:Efforts,PracticesandFuture,co-sponsoredbyACCA21andUNDP.SincetheUNConferenceonEnvironmentandDevelopmentin1992,peoplearoundtheworldhavemadenumerous

  • 标签: 中国 可持续发展 绿色经济 联合国 环境
  • 简介:TheEU,theUnitedStatesandothereconomies,withtheintentiontoimplementunilateraltrademeasuresBorderCarbonAdjustments,imposeemissionreductionpressureondevelopingcountries.Onceimplemented,themeasureswillhavegreatimpactonChina'sforeigntrade.Usingtheinput-outputtablein2007,thispaperhadanalyzedtheinfluencesonChina'sforeigntradeasawholeandsub-sectorsinthreetaxratesscenarios.TheresultsshowedthatthetarifflevelofChina'sexportswillincreaseby3.6%-6.3%ifthetaxwasleviedonexportsembodiedemissions,andby1.0%-1.7%ifleviedonexportdirectemissions.In2007,theformertotalamountofcarbontaxwasaboutUS$42.6-73.0billion,4timesthatofthelatter.Basedonexportembodiedemissions,sectorslargelyinfluencedwerenon-traditionalenergyintensiveones,suchastextile,etal.Thesesectorsshouldbeencour-agedtocarryoutindustrialupgrading,raisingthevalue-addedofexportgoods,andreducingtheirembodiedemissionsbyreductionofenergyintensity.Takingintoaccountofthecomplexityofdatacollection,thetaxleviedonproductsdirectemissionismoreoperational.Theresultsshowedthatthefivetopsectorsmostaffectedwereotherchemicalmaterials,processingofpetroleumandnuclearfuel,coking,smeltingandrollingofferrousmetalandtextile.Mostofthemwereenergyintensivesectors.Therefore,adjustingexportproductsstructure,andcontrollingtoofastdevelopmentofenergyintensiveindustriesarealsoimportantstrategiesinChina.

  • 标签: 对外贸易 中国 调整 碳税 出口货物 边境
  • 简介:Basedonthetotal-factorenergyefficiencyframework,thispapercalculatesChina'sindustrialenergyefficiencyandCO2emissionsreductionpotentialfrom2000to2009byutilizingthedirectionaldistancefunctionanddataenvelopmentanalysis.Theempiricalresultsshowthat:China'sindustrialoverallenergyefficiencyisrelativelylowerwhiletheemis-sionsreductionpotentialisrelativelygreater,giventheoptimumproductionfrontier.Significantindus-trialdisparitiesofenergyefficiencyandemissionsreductionpotentialexist.Energyefficiencyandemis-sionsreductionpotentialsignificantlyshowdifferenttendenciesofindustrialdynamicvariation.ThispapersuggeststheChinesegovernmentimposedifferentialcarbontaxes,flexiblyutilizecarbonmarketmecha-nism,strengthenenergy-savingtechnologicalR&D,promotetheutilizationofrenewableenergy,andstrengthenenvironmentalsupervisionandregulation,soastoimproveChina'sindustrialenergyefficiencyandreduceCO2emissions.

  • 标签: CO2减排 能源效率 中国工业 工业部门 数据包络分析 距离函数
  • 简介:Climatechangeandurbanizationissuesarethetwokeyfactorsthatmakehumansliabletobeaffectedbydisasters,whichareoverlappedinurbanagglomeration.ThefivebigurbanagglomerationsofChinawithstrongeconomicpoweraretheimportantenginesfornationaleconomicandsocialdevelopment.However,beinginthesea-landmutualinteractionbeltswithavasthazard-bearingbody,theyareaffectedbysea-landcompounddisasters,andareliabletosufferheavydisasterlosseswithclimatechange.Itissuggestedthatgovernmentdepartmentsconcernedshouldfullyrecognizetheimpactofclimatechangeoncoastalurbanagglomerations,proposestrategiesassoonaspossible,andintegratetheimpactofclimatechangeandadaptationcountermeasuresintothevariouskindsofsocial-economicdevelopmentplansforcoastalurbanregions.

  • 标签: 气候变化 中国沿海 城市群 经济社会发展 沿海城市 经济实力
  • 简介:China'scirculareconomyisstillattheinitialstage,whosedevelopmenthasmanydifficultiesandproblemsrequiringimmediateresolutiontheoreticallyandpractically.Duetothedifferencesofregionsonthescaleofland,endowmentofresources,economicbasisandculturalbackground,thedevelopmentallevelsandcapabilitiesofcirculareconomyareinevitablydifferent.Basedonestablishingtheindicatorsystemforassessingthedevelopmentallevelofregionalcirculareconomy,spatialvariationofChina'scirculareconomyismeasuredbythequantitativemeasurementusingprincipalcomponentanalysis,andtheexistingproblemsarealsoanalyzedanddiscussed.Ononehand,thedifferencesofthedevelopmentcapabilityofthecirculareconomyofdifferentprovinces(cities)areprofoundinChina;①Differencebetweenthefirstcategory(strong)andthesecondcategory(relativelystrong)is1.1264points.Differencebetweenthesecondcategoryandthethirdcategory(relativelyweak)is0.3867points.Differencebetweenthethirdcategoryandthefourthcategory(weak)is1.0238points.Differencebetweenthefirstcategoryandthefourthcategoryreachesupto2.0869points.Averagedifferencebetweentheareawherethedevelopmentallevelofcirculareconomyisrelativelystrongandtheareawherethedevelopmentallevelofcirculareconomyisrelativelyweakis1.3617points.②Thedifferencesofthedistributionoftheareas,withdifferentdevelopmentcapabilityofcirculareconomy,whicharelocatedinthethreeeconomicregionsofChina,arealsoprofound.Theregionswitharelativelystrongdevelopmentcapabilityofcirculareconomyaremainlylocatedintheeasterneconomicarea,whichaccountfor22.58%ofthewholeregions,whileonlyaccountfor12.90%inthemiddleandwesterneconomicareas.Onthecontrary,theregionswitharelativelyweakdevelopmentcapabilityofcirculareconomyaccountfor48.39%inthemiddleandwesternarea,whileaccountfor16.13%intheeasternarea.Ontheothe

  • 标签: 经济发展水平 循环经济 空间变异性 中国 经济发展能力 和空间
  • 简介:Chinaachievedmajorprogressinlow-carbondevelopmentduringtheperiodofthe11thFiveYearPlan(2006-2010).Theincreasingtrendofenergyintensityandcarbonintensityoftheeconomyasseenpriorto2005wasreversedtoasharpdecreasingtrend,leadingtoa19%decreaseinenergyintensityand21%decreaseincarbonintensityinfiveyears.Theenhancedenergyefficiency,mostlyduetoefficiencyimprovementinpowerandmanufacturingsector,isthemajordriverofthedecreaseincarbonintensityoftheeconomy.Thedevelopmentofrenewableenergy,despiteitsimpressivegrowthrate,playedaminorrolebecauseofitssmallshareintheenergymixofthecountry.Energycon-sumptionandenergy-relatedcarbonemissionsperunitofareainbuildingcontinuedtogrowatalesserrate,which,combinedwiththefastgrowthoftotalbuildingvolume,ledtofastgrowthintotalenergyconsumptionandcarbonemissionsinthesector.Similartrendisobservedinthetransportationsectorwhosetotalenergyuseandcarbonemissionscontinuedtogrowfastdespiteslightimprovementinenergyefficiency.Agriculturalenergyuseexperiencedaslightchangeandforestrymadeamajorcontributiontocarbonsinks.Policyandinstitutionalinnovationshelpedbuildasolidsystemofrulesforlow-carbondevelopment.Improvingcosteffectivenessofthesystemremainsamajorchallengeforthenextfiveyearplanperiod.

  • 标签: 低碳 经济 中国 二氧化碳排放量 能源强度 能源效率
  • 简介:Inrespondingtoglobalclimatechange,theideaoflow-carboneconomyemergesasthetimesrequire.Developinglow-carboneconomyisbasedontheconstructionoflow-carbonsociety.Thesocalled'two-orientationsociety'(resourcesconservationorientatedsocietyandenvironmentalfriendlyorientatedsociety)istheconcreterepresentationoflow-carbonsocietywithChinesecharacteristics,andanactualactionforChinaindevelopinglow-carboneconomy.Basedonurbanagglomeration,thepaperdiscussesthemeaningofandtheroutetolow-carbonsocietywhichwouldbetterreflecttheintrinsicrequirementsofsuchasociety.

  • 标签: 中国特色 社会 低碳 路线 全球气候变化 环境友好
  • 简介:Twoopposingintellectualtraditionsandtheircontem-porarydevelopmentsregardingtherelationsamongpopulation,availableresources,andqualityoflifeasreflectedineconomicgrowtharereviewed.Whatisatissueiswhetherpopulationgrowthisdetrimentaltoorbeneficialforeconomicdevelopment.Neitheroftheextremeviewsgivesacompletepictureoftheinterplayamongpopulation,resources,andqualityoflife.Followingpreviousliteratureonthetopic,thispaperestablishesamorebalancedapproachthatconsidersthefunctionlinkingpopulationandqualityoflifenotconstantbutvariableandregardsthelimitednessofresourcesasnotabsolutebutrelativetoregionsandsocieties.Theproposedapproachismoreflexibleinbetterexplainingtherelationbetweenpopulationandeconomicgrowth.Chinaisexaminedasacaseinpointtoshedlightontheinteractionofpopulationgrowth,economicdevelopment,andavailableresources,anditsrecentpost-economicreformexperiencesshowcasetheappropriatenessofthesyntheticapproach.

  • 标签: 人口增长 社会资源 生活质量 经济发展 经济改革 中国
  • 简介:Thispaperquantifiesadecompositionanalysisofenergy-relatedCO2emissionsintheindustrialsectorsofShanghaiovertheperiod1994-2007.TheLog-MeanDivisiaIndex(LMDI)methodisappliedtothisstudyintermsofsixfactors:laborforce,labormobility,grosslaborproductivity,energyintensity,fuelmix,andemissioncoefficient.Inaddition,thedecouplingeffectbetweenindustrialeconomicgrowthandCO2emissionsisanalyzedtoevaluateCO2mitigationstrategiesforShanghai.TheresultsshowthatalllaborproductivityhasthelargestpositiveeffectonCO2emissionchangesintheindustrialsectors,whereaslabormobilityandenergyintensityarethemaincomponentsfordecreasingCO2emissions.OtherfactorshavedifferenteffectsonCO2mitigationindifferentsub-periods.AlthougharelativedecouplingofindustrialCO2emissionsfromtheeconomicgrowthinShanghaihasbeenfound,ShanghaishouldkeeppacewiththeindustrialCO2emissionsreductionbyimplementinglow-carbontechnology.Theseresultshaveimportantpolicyimplications:PlanCisthereasonablechoiceforShanghai.

  • 标签: 二氧化碳排放量 能源强度 上海 分解 工业部门 劳动生产率
  • 简介:文章探讨了通常用于水中H2S去除的方法,对比方法的优缺点,提出以NaClO为主要脱硫剂的处理方法。通过对采出水的脱硫氧化剂优选试验、NaClO连续脱硫试验,并将试验研究结果应用于普光高含硫气田水脱硫处理。试验证明:采用NaClO可以安全、高效地去除采出水中的H2S,处理后的气田水中硫化物的含量小于1mg/L。

  • 标签: 高含硫气田水 脱硫 氧化法 药剂