| 棉花阴、阳叶的气孔导度和光合作用观测对比及模型应用 |
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| 引用本文： | 申双和,陶寅,张方敏.棉花阴、阳叶的气孔导度和光合作用观测对比及模型应用[J].南京气象学院学报,2008,31(4):468-472. |
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| 作者姓名： | 申双和 陶寅 张方敏 |
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| 作者单位： | 南京信息工程大学,应用气象学院,江苏,南京,210044 |
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| 摘 要： | 以实验观测数据为基础，对棉花阳叶和阴叶光合速率、气孔导度的变化进行比较，通过双叶模型和大叶模型对冠层光合作用进行对比分析，结果表明，大叶模型的计算结果普遍高于双叶模型，总体高出13％。由此可见，过去在研究植被一大气碳交换中使用大叶模型估算植物光合作用会夸大碳汇的作用。
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| 关 键 词： | 棉花 大叶模型 双叶模型 光合作用 气孔导度 |
Comparison of the Stomatal Conductance and Photosynthetic Rate of Cotton's Sunlit and Shaded Leaves,and Application of Photosynthesis Model |
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| SHEN Shuang-he,TAO Yin,ZHANG Fang-min.Comparison of the Stomatal Conductance and Photosynthetic Rate of Cotton''s Sunlit and Shaded Leaves,and Application of Photosynthesis Model[J].Journal of Nanjing Institute of Meteorology,2008,31(4):468-472. |
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| Authors: | SHEN Shuang-he TAO Yin ZHANG Fang-min |
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| Affiliation: | ( School of Applied Meteorology ,NUIST ,Nanjing 210044 ,China) |
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| Abstract: | Based on observed data, we compare the photosynthetic rate and stomatal conductance of sunlit and shaded cotton leaves respectively. Results show that the photosynthesis in big-leaf model is totally 13% higher than that in two-leaf model. Therefore, the contribution of cotton＇s potosynthesis to carbon sink might be exaggerated in past estimating photosynthesis by using big-leaf model in carbon exchanges between the biosphere and the atmosphere. |
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| Keywords: | cotton big-leaf model two-leaf model photosynthesis stomatal conductivity |
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