不同复种模式对云南植烟红壤根区有机碳和微生物量碳的影响.pdf

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1、农业环境科学学报2011，30(1)：133—138JournalofAgro—EnvironmentScience不同复种模式对云南植烟红壤根区有机碳和微生物量碳的影响官会林1，郭云周2，张云峰妒，刘建香2，尹小怀4，罗余红3，5关键词：植烟轮作；土壤微生物量碳；土壤有机碳；生物学评价中图分类号：S181文献标志码：A文章编号：1672—2043(2011)01—0133—06EffectofDifferentModeofAlternatingCrop-plantingonContentoforganicCarbonandMicrobialBiomassCarbonintheSoi

2、lWithinTobaccoRootRegionsinYunnan，ChinaGUANHui—linl，GUOYun—zhou2,ZHANGYun-feng弘，LIUJian—xian92,YINXiao—huai4，LUOYu—hon93，5二，L上acultyo士Ene曙yandEnvironment，YunnanNormalUniversity，Kunming650092，China；2．SchoolofBiologicalScience，YunnanNoImalU脚erSlty，Kunming650092，China；3．Institute。fAgriculturalEnVi

3、ronmentandRes。urees，YunnanAcademy。fA醯uhuralSciences。Kun一⋯ming650205,China；4·AgriculturalTechn0109YExtensi。ncenterinFuyuanCounty，Fuyuan655500，chin≤5．Yi------lOiangFirStMiddles：h。。LAbstract：Areasonablealternatingcrop—plantingmodeisregardedastobeaneffectivewaytobuildasoilenvironmentfavorableforthe

4、to一，baccogroⅥng·InthetobaccogrowlngregionsinYunnan，cultivatedlandswereusuallyusedtogrowwheat，li曲tpuIplesweetpotato1eaves。beans，Vegetablesandothercropsinthefallandwintersandgrowtobaccoinsummers．Inthiswork，fourahernatinggrowingmodes：wheat_tobacco’green—tobacco'beanS_tobacco，vegetables—tobacco，wer

5、ecomparativelytestedinQujingandJinningwithaimingatinvestigatingef_士ec：so士dlfibrentaltematingtobaccogrowingmodeonthecontentoforganiccarbon(SOC)andmicro—biomasscarbon(SMBC)inthesoilwlthmtobaccorootreglons·ResuhsshowedthatcontentsofSOCandSMBCinthesoilforthegreen—tobaccoandbeans-tobaccomodesweres粤l

6、土lcantlyhigherthanthoseforwheat—tobacco，vegetables—tobaccoandnoplantinginthewintermodes．Itwasalsofoundthatthecontent。fSOCandSMBCwasrelatedt。therati。ofSMBCt。SOCforallmodes，thegreen—t。bacc。andbeans-t。bacc。m。deswerefav。rableforin—cre．aslngcontentsof。SOCandSMBCandlastingtheactiVationofsoil，contents

7、ofSMBCwerepeakedinthetobaccodpepedodforthe卿en—tob?ccoandbeans—tobaccomodesandpeakedinthefastgrowingperiodforothermodes．TheeffectsofdifferentmodeontheSOCandSMBCr?nkedmtheorderfromstrongandweakas：green—tobacco，bean—tobacco，wheat—tob