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1、X植物生态学报2003,27(3)304～310ActaPhytoecologicaSinica木本植物对CO2浓度和温度升高的相互作用的响应杨金艳杨万勤王开运孙建平(中国科学院成都生物研究所,成都610041)摘要CO2浓度和温度是影响木本植物生长和发育的两个关键因子,二者在全球变化中的相互作用对木本植物生长和发育具有显著的影响。大多数研究表明:CO2浓度增加和温度升高的相互作用可能影响木本植物的生长发育,促进光合作用;呼吸作用对CO2浓度增加和温度升高的相互作用存在长期和短期响应差异;二者的相互作用促
2、进生物量增加和生产力的增长。木本植物对CO2浓度和温度升高的相互作用的响应程度因植物种类而异。关键词CO2浓度增加温度升高相互作用生长生产力WOODYPLANTSRESPONDTOINTERACTIONSBETWEENELEVATEDCO2ANDINCREASEDTEMPERATUREYANGJin-YanYANGWan-QinWANGKai-YunandSUNJian-Ping(ChengduInstituteofBiology,theChineseAcademyofSciences,Chengdu61
3、0041,China)AbstractIntheprocessofchangingglobalclimate,theincreasedcarbondioxideconcentrationandstimulat2edtemperaturearemainfocus.Carbondioxideconcentrationandtemperaturearetwokeyfactorswhichcanaf2fectthegrowthanddevelopmentofwoodyplants.Atpresent,alotof
4、researchhasbeencarriedoutonthespe2cificresponsesofwoodyplantstoincreasedcarbondioxideconcentrationorstimulatedtemperature.Atthesametime,reviewsofthisresearchwerepublicizedwidely.However,reviewsontheresponsesofwoodyplantstotheinteractionbetweencarbondioxid
5、econcentrationandtemperaturewerelimited.Inordertogivesomead2viceofusetotheforestryindustry,thispaperreviewedhowdifferentwoodyplantsrespondedtotheinteractionsbetweencarbondioxideconcentrationandtemperature.Increasingcarbondioxideconcentrationandtemperature
6、significantlyaffectedphotosynthesis,respiration,growthanddevelopment,biomass,andproductivity.Moreover,theinteractionsbetweencarbondioxidecon2centrationandtemperaturehavesignificanteffectsonwoodyplantsgrowthanddevelopment.Intheprocessofphotosynthesis,thema
7、insubstratewasRubpandRubiscocatalyzecarboxylationandoxidization.Oxidizationproducesrespirationconsumptionandcarboxylationdevelopscarbonfixation.Differentplantsrespondedtotheinteractionsdifferentlyandindividualsofthesamespecieswithdifferentprovenancedidnot
8、havethesamere2sponses.Atthesametime,becauseofdifferencesinphotosynthesisofC4andC3plants,theexplorationoftheeffectsofinteractionsonC4plantshasaspecialsignificance.Moststudiesshowedthattheinteractionsdidstimulatephoto
