Climate change impacts on cropproductivity in Africa and South Asia气候变化对作物地影响 非洲和南亚地生产率.pdf

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1、EnvironmentalResearchLettersLETTER•OPENACCESSRelatedcontent-Meta-analysisofclimateimpactsandClimatechangeimpactsoncropproductivityinuncertaintyoncropyieldsinEuropeJerryKnox,AndreDaccache,TimHessetAfricaandSouthAsiaal.-AssessingclimatechangeimpactsonsorghumandmilletyieldsintheSudanianTocitethisarti

2、cle:JerryKnoxetal2012Environ.Res.Lett.7034032andSaheliansavannasofWestAfricaBSultan,PRoudier,PQuirionetal.-GlobalwarmingthreatensagriculturalproductivityinAfricaandSouthAsiaBenjaminSultanViewthearticleonlineforupdatesandenhancements.Recentcitations-TheimpactofraineventsonCO2emissionsfromcontrastin

3、glandusesystemsinsemi-aridWestAfricansavannasSinaBergeretal-ProjectedchangesincropyieldmeanandvariabilityoverWestAfricainaworld1.5 Kwarmerthanthepre-industrialeraBenParkesetal-Smallholderfarmers’participationinclimatechangeadaptationprogrammes:understandingpreferencesinNepalUttamKhanaletalT

4、hiscontentwasdownloadedfromIPaddress117.165.43.191on26/08/2018at12:56IOPPUBLISHINGENVIRONMENTALRESEARCHLETTERSEnviron.Res.Lett.7(2012)034032(8pp)doi:10.1088/1748-9326/7/3/034032ClimatechangeimpactsoncropproductivityinAfricaandSouthAsiaJerryKnox1,TimHess1,AndreDaccache1andTimWheeler21CranfieldUniver

5、sity,Cranfield,BedfordshireMK430AL,UK2WalkerInstituteforClimateSystemResearch,DepartmentofAgriculture,UniversityofReading,ReadingRG66AR,UKE-mail:j.knox@cranfield.ac.ukReceived20June2012Acceptedforpublication30August2012Published14September2012Onlineatstacks.iop.org/ERL/7/034032AbstractClimatechangei

6、saseriousthreattocropproductivityinregionsthatarealreadyfoodinsecure.WeassessedtheprojectedimpactsofclimatechangeontheyieldofeightmajorcropsinAfricaandSouthAsiausingasystematicreviewandmeta-analysisofdatain52originalpublicationsfromaninitialscreenof1144studies.Hereweshowthattheprojectedmeanchangei

7、nyieldofallcropsis8%bythe2050sinbothregions.AcrossAfrica,meanyieldchangesof17%(wheat),5%(maize),15%(sorghum)and10%(millet)andacrossSouthAsiaof16%(maize)and11%(sorghum)wereestimated.Nomeanchangeinyieldwasde