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甘肃马衔山平车前叶片δ¹³C的海拔和时间差异

The altitudinal and temporal variation of δ¹³ C values in leaves of Plantago media L.

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【Author】 CHEN Tuo 1,QIN Da he 1,REN Jia wen 1,SUN Wei zhen 1,CHEN Xiong 2 (1 The Laboratory of Ice Core and Cold Regions Environment,LIGG,CAS Lanzhou 730000,China;2 State Key Laboratory of Arid Agroecology,Lanzhou University,Lanzhou 730000,China)

【机构】中国科学院兰州冰川冻土研究所冰芯与寒区环境开放实验室!兰州730000；

【摘要】以甘肃马衔山自然生长的平车前为材料 ,比较了不同海拔高度和不同月份下叶片δ13C的变化。结果表明 ,随海拔的升高 ,叶片δ13C值增大 ;生长初期叶片δ13C也高于生长后期叶片 δ13C值 ,并且叶片 δ13C具有年间差异。叶片 δ13C值的这种变化也许与植物对环境的适应有关。更多还原

【Abstract】 The δ 13 C changes were studied in leaves of Plantago media L.which were collected from Maxian mountain at different altitudes and months.The results showed that the δ 13 C values increased with increasing altitudes.The δ 13 C values were also affected by the growth periods of leaves.The newly developed leaves had a higher δ 13 C values than the lately developed ones.Perhaps the altitudinal and temporal changes of δ 13 C values in leaves of Plantago media L.were related to the adaptation of Plantago media L.to environment.更多还原