学科分类
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10 个结果
  • 简介:Internationalcooperationtoaddressclimatechangenowstandsatacrossroads.WithanewinternationalregimeforemissionsreductionestablishedbytheDurbanPlatform,"NewClimateEconomics(NCE)"hasbecomearesearchhotspot.Theneedforurgentactiontocombatclimatechangehasprompteddiscussiononreformsofeconomicgrowthpatternsandtheenergysystem.Theindustrialcivilization,therefore,nowfacesatransitiontowardsanewpathwayforecologicalsustainability.NCEexploresneweconomicconcepts,theories,andanalyticalmethodstodesignabalancedpathwayforsustainablegrowthandemissionreduction.Insteadofgettingtrappedindiscussionsonallocationofemissionreductionresponsibilitiesandobligationsamongcountries,NCEpaysmoreattentiontodevelopingwin-winmultilateralcooperationmechanismsthatfacilitatecollaborativeR&Dandknowledgesharing.Inaddition,NCEstudiesincentivesforlow-carbontransition,turningcarbonemissionreductionintoadomesticneedforcountriestoincreasetheirinternationalcompetitiveness.Toachievethe2°Ctarget,mostcountriesaroundtheworldfacechallengesofinsufficientemissionallowancestocoverexpectedemissionsassociatedwiththeirprojectedeconomicgrowth.Ascarbonemissionsrightsbecomesanincreasinglyscarceresource,increasingthecarbonproductivityoftheeconomyturnstobethecriticalpathtoaddressthedilemmaofgreenorgrowth.NCEstudiesthehistoricalevolutionofcarbonproductivityforcountriesatdifferentdevelopmentstagesaswellaswaystoenhancesuchcarbonproductivity.Thistypeofstudyprovidesinvaluablelessonsforemergingeconomiestoreachtheirownemissionpeakswithoutlosingthemomentumofgrowth.Replacingfossilfuelswithnewandrenewableenergyhasproventobeaninevitablechoiceforreshapingtheenergysystemandaddressingclimatechange-ithasalreadybecomeaglobaltrend.NCEstudiesincentivesfornewenergytechnologyinnovationanddeploymentprovidedbycarbonpricing,andshedsligh

  • 标签: NEW CLIMATE ECONOMICS low-carbon development energy
  • 简介:Thevulnerableeco-areaisoneoftheimportantresearchtargetsinthefieldofsustainabledevelopment.Itistherequirementofbuildingawell-offsocietyinanall-roundwaythatweshouldstudymoreonthevulnerableeco-areas,dealwiththerelationshipbetweenenvironmentalprotectionandeconomicdevelopment,speeduptheeconomicdevelopmentintheseareasandincreasethelivingstandardofthelocalpeople.Thispaperputsforwardthecountermeasuresofenvironment---economycoordination,onthebasisoftherecognitionofeco-environmentfeaturesandsocialeconomicconditionsinthevulnerableeco-areasofChina,inviewoftheprogressinsustainabledevelopmentstudiesofthevulnerableones,takingthetransitionalareasoffarmingandpasturinginnortheastChinaasanexampletostudytheregionalenvironmentvulnerability.

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  • 简介:Circularagricultureisanessentialwaytorealizethepositiverecyclingofecologyandharmoniousdevelopmentofthecountryconstruction.ThesustainabledevelopmentofBeijing'smountainareasdependsonthebackgroundandorientationofecologicaleconomy.Beijing'smountainareasbeartheresponsibilityofprotectingtheecologicalsafetyofthewholeBeijingdistrictandalsotheexplorationofcircularagricultureinmountainareasisveryimportanttopromotethesustainableuseofagricultureresources.Beijing'smountainareashavepossessedsomepracticalexperienceinrecyclingagriculturedevelopment.Throughsummarizingthedevelopmentmodeandanalyzingthedevelopmentpractice,thearticleputsforwardthreekeysegmentsofpromotingBeijingcircularagriculturedevelopment:strengthenpropagate,developsuperiorityandbuiltmanagementmechanism.

  • 标签: 循环型农业 北京山区 农业发展 生态经济 可持续发展 可持续利用
  • 简介:Withtheincreaseofglobalpopulation,grain-populationrelationshiphasattractedgreatattentionworldwide.InChina,grain-populationrelationshiphasbecomeanincreasinglyimportanteconomicconcern.OfcentralimportancetothefoodsecuritydebateinChinaisthegeographyofgrainsupplyanddemand.Thispaperusesagraindemandandsupplyindex(DSR)toanalyzethespatial-temporalrelationshipbetweenpopulationandgraininChinafrom1949to2007atnationalandprovincialscales.Theresultsareexaminedinthreeperiods.(1)From1949to2007,withtheincreaseofgrainproduction,therelationshipbetweenpopulationandgrainofChinaimprovedconsiderably.(2)Overthepast35years(1970-2005),onthewholethegrainproducingareashavehadgrainsurplusandcontributedtothenationbyprovidinggrain,buttheabilitytoprovidesufficientgrainisnotstable.(3)Overthepast15years(1990-2005),decreasesinplantingareabroughtpressureonnationalgrainfoodsecurity.Thepaperconcludesthatthekeytoprovidingmorefoodforthemainfoodproducingprovincesisincreasingyieldonthebasisofsteadyplantarea.

  • 标签: 粮食产区 人口 中国 粮食安全 粮食生产 种植面积
  • 简介:ThisarticleattemptstoexaminetheinfluenceofsomeselectedpredictorvariablesonfemaleageatfirstmarriageinslumareasofBangladesh.Apathandmultipleclassificationanalysis(MCA)approachhavebeenadopted.Authorsthoughtthatrespondent'seducationallevelandthemassmediasuchaswatchingtelevisionhaveasignificantdirectimpactonageatmarriage,whilethetypesoffamilyandoccupationalstatushaveanindirecteffectonageatmarriage.

  • 标签: 孟加拉国 社会经济因素 贫民窟 年龄 间接 直接和
  • 简介:Understandingtheconnotationandprinciplesofecologicalcompensationinwatersourcereserveareasisthebasisandguaranteeforestablishingandimprovingtheecologicalcompensationmechanismofwatersourcereserveareas.First,thispaperreviewsthethreestagesofecologicalcompensationresearchprogress.Basedonthereview,usingthetheoryofexternality,theecologicalenvironmentsystemofwatersourcereserveareasisthenanalyzed.Thispaperarguesthattheconnotationofecologicalcompensationinwatersourcereserveareasisakindofinstitutionalarrangement,whichisdesignedtointernalizeexternalities.Finally,basedontheunderstandingoftheconnotationofecologicalcompensationinwatersourcereserveareas,fiveprinciplesforestablishingandimprovingtheecologicalcompensationmechanismareproposed,includingtheprincipleoffairnessandjustice,theprincipleofequivalenceofequalityandresponsibility,theprincipleofflexibilityandeffectiveness,theprincipleof'earmarkfunds,andimplementationbylaw,'andtheprincipleofgovernmentcompensationsupplementedwithmarketcompensation.

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  • 简介:Theobjectiveofthispaperistoinvestigatetherela-tionshipsamongrural-urbanmigration,ruralhouseholdincomeandsustainabledevelopmentinruralareasofChina.Thetypicalcasestudyisdoneand288questionnairesarecollectedfromfivevillagesinHebeiandGuangxiprovinces,China.Themigrationandremittancestatus,householdincomeandsustainabledevel-opmentofruralareasareanalyzedonthebasisofquestionnaires.Rural-urbanmigrationisbecomingapartofroutinelifeinruralareas.Andremittanceisanimportantcomponentinruralhouse-holdincome.Rural-urbanmigrationincreasesthearablelandareaperlabor,whichreleasesthetighthuman-landrelationshipinvillages.Intotal,themigrationincreasestheruralhouseholdin-comeandacceleratesthesustainabledevelopmentofruralareas.

  • 标签: 中国 农村 移民 经济收入
  • 简介:Withtherapidchangesofdemographicandsocio-economicstructure,variousecologicalandenvironmentalproblemshaveemergedinperi-urbanareas.Studiesonthecorrelationbetweensocio-economicdevelopmentandeco-environmentalpreservationareinadequate.Thispaperanalyzesthelandscapepatternofperi-urbanareastoaddressthisissue.First,itstudiesthedifferentiationofeconomicdevelopmentlevelsinBeijingperi-urbanareas.Then,itexploresthecorrelationbetweeneconomicdevelopmentlevelofeachtownanditslandscapepatternusingPearsonCorrelationandgradedifferenceindices.Furthermore,itsummarizestheproblemswithincurrentlandscapepattern.Threeconclusionsaredrawnfromtheanalysis:(1)onthewhole,theeconomicde-velopmentlevelinBeijingperi-urbanareasbasicallymatcheswithlandscapepattern;(2)landscapecontagiondegreedecreaseswiththegrowthofeconomicdevelopmentlevelinasmuchas30%ofBeijingperi-urbanareas.Thisisanirrationalphenomenonaccord-ingtoourjudgment;(3)landscapefragmentationgradesinmorethanhalfofthetownsarehigherthantheireconomicdevelopmentgrades,suggestingthatattentionshouldbepaidtoexcessivefragmentationoflanduse.

  • 标签: 经济发展水平 景观格局 北京 城市周边地区 近郊区 社会经济结构
  • 简介:Usingruralsurveydatafortheyear2009,weprovideevidenceofworkchoicesofrurallaborersinecologicallyvulnerableareasinNorthChina,andmodelthesechoicesasafunctionofcharacteristicsofindividuals,households,andlandendowments.Thefindingsreveallargedifferencesbetweenmalesandfemales,andbetweennon-farmemploymentandpart-timefarmingengagementLandscarcityisstillanimportantdrivingfactorinnon-farmingparticipationofrurallaborersinthestudyarea;andinthecurrentcaseoflandproductivityandthetotalamountofland,therearestillsurplusrurallaborforcesinthestudyarea.Diversificationoflivelihoodreducesthepressureonland,thusfacilitatingecosystemconservation.So,thepaperconcludeswiththeargumentthatestablishingcoordinationmechanismsamongnon-farmemploymentofrurallaborers,agriculturalproduction,andrestorationofecosystemsareessentialformitigatingtheconflictsofecologicalsecurity,agriculturalproduction,andruraldevelopmentinmisarea.

  • 标签: work CHOICES rural LABORERS MULTINOMIAL LOGIT
  • 简介:Whileanalyzingoverallplanningandcoordinateddevelopmentofurban-ruralareas,thispapershowsthatoverallplanningforthedevelopmentofurban-ruralareasisarequirementforthebestuseofproductiveforces.Itmeansthesettingupofapolicymechanismforcoordinatedgrowth.Recognizingthis,thegovernmentshouldsetupawaytoleadandmanageaunifiedprogramtoincreaseserviceanddecreasecontrollingadministrationpower,whilesafeguardingandfulfillingthefarmers'ownershiptothemeansofproduction.

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