学科分类
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500 个结果
  • 简介:DalianisaportcitysituatedatthesoutherntipoftheLiaodongpeninsula.Sincetheruraleconomicstructurereformwascarriedout,agriculturalproductioninDalianhasbeendevelopedrapidlyonthebasisofsettingupafamilycontractingsystemandcooperativeeconomicorganizations.In1994thevalueofagriculturaloutputtherewasoverRMB10.2billion,8.7timesgreaterthanin1978.In1995italsowitnessedabigincrease.

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  • 简介:Feedingagrowingpopulationexceeding1billionisabigchallengetotheChinesegovernmentandhaspartlyledtotheself-sufficientpolicyingrainproductionandsupplyfordecades.However,theeffortstopushgrainproductioneverywherehaveresultedinnotonlydeteriorationoftheenvironmentbutalsostagnationorevenreductioninfarmers'incomeasproductioncostscontinuetoincrease.ThissituationmightbeworseningafterChina'saccessiontotheWTOthatprovidesmarketaccessforbulkcommodityimports.AsustainabledevelopmentinChineseagriculturedependsondiversification,orstructuraladjustment,thatallowsChinesefarmerstofullyutilizetheircomparativeadvantageinproductionoflabor-intensivegoods.PastexperiencehasshownthatdiversificationhascontributedmorethanahalfofthegrowthinChineseagricultureduringthereformperiodandreducedstressesontheenvironmentatthesametime.ItislikelytocontributeevenmoretoChineseagricultureinthefuturean

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  • 简介:TheimpactsofclimatechangeonChina'sagriculturearemeasuredbasedonRicardianmodel.Byusingcounty-levelcross-sectionaldataonagriculturalnetrevenue,climate,andothereconomicandgeographicaldatafor1275agriculture-dominatedcountiesintheperiodof1985-1991,wefindthatbothhighertemperatureandmoreprecipitationwillhaveoverallpositiveimpactonChina'sagriculture.However,theimpactsvaryseasonallyandregionally.Highertemperatureinallseasonsexceptspringincreasesagriculturalnetrevenuewhilemoreprecipitationisbeneficialinwinterbutisharmfulinsummer.Applyingthemodeltofiveclimatescenariosinthe2020sand2050sshowsthattheNorth,theNortheast,theNorthwest,andtheQinghai-TibetPlateauwouldalwaysbenefitfromclimatechangewhiletheSouthandtheSouthwestmaybenegativelyaffected.FortheEastandtheCentralChina,mostscenariosshowthattheymaybenefitfromclimatechange.Inconclusion,climatechangewouldbebeneficialtothewholeChina.

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  • 简介:Developmentofagri-cultureandanimalhusbandryinTibetoverthepast50yearshasplayedanimportantroleinlocaleco-nomicdevelopment.However,withChina’saccessiontotheWTO,thegoalofagriculturalproductionandlivestockbreedingischangingfromprovidingthepublicwithfoodtoincreasingtheincomeoffarmersandherders.Whilethepublicshowsmorecon-cernformarketeconomicdevelopmentandprotectionof

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  • 简介:Leisureagricultureisanewformofagriculturalproductionandmanagementinthecourseofagriculturalstructureadjustment.Itisanaggregationofagriculturalproductionandtourism,high-techandtraditionalagriculture,agriculturalvalueandregionalculturalvalues.ThereistheinseparablerelationshipbetweenLeisureagricultureandsustainabledevelopment.FouragriculturalareasofChinahaverichbutdifferentagriculturalandtouristresources,bywhichdifferenttypesofleisureagriculturecanbelayedout.ItisimportanttomakearightorientationforleisureagricultureinvariousagriculturalareasforsustainabledevelopmentofagricultureinChina.

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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