16种木兰科树种光合特性比较 |
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引用本文: | 黎清,何秀云,修小娟,薛胜男,郭雄飞,陈红跃. 16种木兰科树种光合特性比较[J]. 绿色科技, 2014, 0(7): 46-48 |
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作者姓名: | 黎清 何秀云 修小娟 薛胜男 郭雄飞 陈红跃 |
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作者单位: | 广东省中山市国有森林资源保护中心;华南农业大学林学院; |
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基金项目: | 中山市科技基金资助项目(编号:4400-H13527)资助 |
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摘 要: | 使用Li-6400便捷式光合仪测定了16种不同的木兰科乡土树种的光合特性,结果表明:16个树种的净光合速率、气孔导度、蒸腾速率和胞间CO2浓度品种间差异显著,其中合果木、鹅掌楸、亮叶含笑的Pn、Gs和Pn/Ci都较高,表现了较好的光资源利用能力,可作为重点推荐种植的绿化树种。
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关 键 词: | 净光合速率 光合特性 木兰科 |
Comparison of Photosynthetic Parameters of 16 Magnoliaceae Tree Species |
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Affiliation: | Li Qing, He Xiuyun, Xiu Xiaojuan, Xue Shengnan, Guo Xiongfei, Chen Hongyue (1. ZhongshanState-owned Forest ResourcesProtection Center, Zhongshan528400, China 2. College of Forestry, South China Agricultural University ,Guangzhou510642, China) |
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Abstract: | This article studiesthe photosynthetic characteristics of16 Magnoliaceae native tree speciesby using-Li-6400 portablephotosynthesis machine .The results show that there are distinctdifferences among the16 tree speciesfrom the net photosynthesis rate (Pn) ,stomatal conductance(Gs) ,transpirationrate (Tr) and in-tercellular CO2 density(Ci) .ThePn ,Gs and Pn/Ciof Paramichelia baillonii ,Liriodendron chinense and Mich-elia fulgensare high among these species ,and their photosynthesisefficiencies are also better than otherspe-cies ,so theycan be widely used as greening tree species . |
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Keywords: | net photo synthesis rate photosynthetic parameters magnoliaceae |
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