| 庐山鹅掌楸(Liriodendron chinense)幼苗蒸腾特性研究 |
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| 引用本文： | 郭志华,王伯荪,张宏达.庐山鹅掌楸(Liriodendron chinense)幼苗蒸腾特性研究[J].热带亚热带植物学报,1997,5(3):22-26. |
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| 作者姓名： | 郭志华 王伯荪 张宏达 |
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| 作者单位： | 中山大学生命科学学院!广州，510275 |
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| 摘 要： | 庐山山地上的鹅掌楸幼苗，在夏季晴天土壤供水充足的条件下，其叶片蒸腾速率的日变化为午后高峰型，日蒸腾量为７０９２ｍｏｌＨ２Ｏｍ＾２ｄ＾１，最大蒸腾速率达３．９ｍｍｏｌＨ２Ｏｍ＾－２ｓ＾－１，叶／敢温度差，敢孔导率，相对湿度等对蒸腾速度的影响最显著；鹅掌楸地的水分利用率日平均为４．１４２ｍｍｏｌＣＯ２３ｍｏｌ＾－１Ｈ２Ｏ最高可达１１．８ｍｍｏｌＣＯ２ｍｏｌ＾－１Ｈ２Ｏ。
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| 关 键 词： | 鹅掌楸 蒸腾特性 庐山 |
THE CHARACTERISTICS OF TRANSPIRATION IN LEAVES OF LIRIODENDRON CHINENSE SEEDLINGS IN LUSHAN |
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| Guo Zhihu,Wang Bosun,Zhang Hungta.THE CHARACTERISTICS OF TRANSPIRATION IN LEAVES OF LIRIODENDRON CHINENSE SEEDLINGS IN LUSHAN[J].Journal of Tropical and Subtropical Botany,1997,5(3):22-26. |
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| Authors: | Guo Zhihu Wang Bosun Zhang Hungta |
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| Abstract: | The characteristics of transpiration in leaves of Liriodendron chinense seedlings measured by a CI-30lPS Portable Photosynthesis System showed that the highest transpiration rate in soil withsufficient water appeared in the afternoon of sunny summer. The leaf/air temperature difference,stomatal conductance, reactive humidity and other factors markedly affected the transpiration rate.The daily average water use effidency of L. chinense sablings was 4.142 mmol CO2 mol-1 H2O. |
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| Keywords: | Liriodendron chinense Seedlings Transpiration Lushan |
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