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1、中国水稻科学(ChinJRiceSci),２０１５,２９(２):１８１－１９０http://www．ricesci．cnDOI:１０．３９６９/ji．ssn．１００１Ｇ７２１６．２０１５．０２．０１０１８１秸秆还田条件下不同水分管理对双季稻田综合温室效应的影响商庆银杨秀霞成臣罗亢黄山石庆华潘晓华曾勇军∗(江西农业大学双季稻现代化生产协同创新中心/作物生理生态与遗传育种教育部重点实验室/江西省作物生理生态与遗传育种重点实验室,南昌３３００４５;∗通讯联系人,EＧmail:zengyj２００２＠１６３．com)EffectsofWaterRegimeonYieldＧscaledGlobalW
2、armingPotentialUnderDoubleRiceＧCroppingSystemWithStrawReturningSHANGQingＧyin,YANGXiuＧxia,CHENGChen,LUOKang,HUANGShan,SHIQingＧhua,PANXiaoＧhua,ZENGYongＧjun∗(CollaborativeInnovationCenterfortheModernizationProductionofDoubleCroppingRice,JiangxiAgriculturalUniversity/JiangxiKeyLaboratoryofCropPhysiol
3、ogy,EcologyandGeneticBreeding/KeyLaboratoryofCropPhysiology,EcologyandGeneticBreeding,MinistryofEducation,Nanchang３３００４５,China;∗Correspondingauthor,EＧmail:zengyj２００２＠１６３c．om)SHANGQingyin,YANGXiuxia,CHENGChen,etal．EffectsofwaterregimeonyieldＧscaledglobalwarmingpotentialunderdoublericeＧcroppingsyst
4、emwithstrawreturning．ChinJRiceSci,２０１５,２９(２):１８１Ｇ１９０．Abstract:Thisstudyprovidedaninsightintoacompletegreenhousegases(GHG)accountingofglobalwarmingpotential(GWP)asaffectedbywaterregimeintypicaldoublericeＧcroppingsystemwithcropresiduereturning．Thethreewatertreatmentsincludedcontinuousflooding(F),fl
5、oodingＧmidseasondrainageＧreflooding(FＧDＧF)andfloodingＧmidseasondrainageＧrefloodingＧmoistintermittentirrigation(FＧDＧFＧM)inricegrowingseasons．MethaneandN２Ofluxesweremeasuredusingstaticchambermethod．TheresultsshowedthatannualCH４emissionsrangedfrom２０８．３２２kg/hmfortheFＧDＧFＧMplotsto６７８．２kg/hmfortheFplot
6、s,being６０．６％－７１．７％fromlateＧriceseason．TheCH４emissionwassignificantlyreducedbymidseasondrainageandintermittentirrigationincomparisonwithcontinuous２flooding．AnnualN２Oemissionwas４．７５－８．１９kg/hminthedoublericeＧcroppingsystem．ComparedwiththeFplots,theN２OemissionslightlyreducedintheFＧDＧFplots,whileitwas
7、remarkablyincreasedintheFＧDＧFＧMplots．Among２２,respectively．Thetreatments,thegrainyieldsofearlyＧriceandlateＧricewere７．７６Ｇ８．０２t/hmand７．２２－８．６９t/hm２２GWPrangedfrom７６４８．８kg/hmfortheFＧDＧFＧMplotsto１８４７１．８kg/hmfortheFplotsindou
