| 苏州地区10种常见园林树木光合特性研究 |
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| 引用本文： | 李欣,蒋华伟,李静会,江君,靖晶,姜红卫.苏州地区10种常见园林树木光合特性研究[J].江苏林业科技,2014(1):20-23. |
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| 作者姓名： | 李欣 蒋华伟 李静会 江君 靖晶 姜红卫 |
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| 作者单位： | 江苏太湖地区农业科学研究所,江苏苏州215155 |
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| 基金项目： | 江苏太湖地区农业科学研究所基金项目（SZJJ1204） |
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| 摘 要： | 用LI-6400光合系统分析仪,测定10种苏州常见园林配置树木(香樟、玉兰、无患子、紫薇、桂花、紫荆、枫香树、杜鹃、海桐、红花檵木)的光合特性及固碳释氧能力。结果表明:10种树木夏季晴天均有明显的光合速率日变化。枫香树、无患子光合速率表现为单峰曲线,8:00其净光合速率就达到当天的最大值;其他8种植物净光合速率的日变化表现为双峰曲线的。10种植物中乔木的单位叶面积日固碳释氧量大小排序为香樟、玉兰、桂花、无患子、枫香树;灌木的单位叶面积日固碳释氧量大小排序为紫薇、紫荆、海桐、红花檵木、杜鹃。
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| 关 键 词： | 光合特性 固碳释氧 园林树木 苏州 |
Photosynthetic characteristics of ten common landscape trees in Suzhou |
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| LI Xin,JIANG Hua-wei,LI Jing-hui,JIANG Jun,JING Jing,JIANG Hong-wei.Photosynthetic characteristics of ten common landscape trees in Suzhou[J].Journal of Jiangsu Forestry Science & Technology,2014(1):20-23. |
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| Authors: | LI Xin JIANG Hua-wei LI Jing-hui JIANG Jun JING Jing JIANG Hong-wei |
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| Institution: | ( Taihu Research Institute of Agricultural Sciences, Jiangsu Province, Suzhou 215155, China) |
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| Abstract: | LI-6400 photosynthesis system was used to determine the photosynthetic characteristics and carbon fixation and oxygen release of ten common landscape trees in Suzhou. There oecured obvious change in their photosynthetic rates in summer sunny day. A single peak curve featured the photosynthetic rate of Liquidambaformosana and Sapindus mukurossi, but bimodal curve featured those of the others. The net photosynthetic rate reached its maximum of the day at 8：00 am of Liquidamba formosana and Sapindus mukurossi. The order of daily carbon fixing and oxygen releasing capabilities of arbor from high to low was shown as follows, Cinnamomum camphora , Magnolia denudate, Osmanthus fragrans , Sapindus muku- rossi and Liquidamba formosana. And the order of the capabilities of shrub from high to low was shown as follows, Lagerstroemia indica, Cercis chinensis Bunge, Pittosporum tobira, Loropetalum chinense var rubrum and Rhododendron sirasii. |
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| Keywords: | Photosynthetic characteristics Carbon fixation and oxygen release Landscape tree Suzhou |
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