| 不同杨树不同层面净光合速率差异及贡献率的研究 |
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| 引用本文： | 张鹏骞,张林源,姚延祷.不同杨树不同层面净光合速率差异及贡献率的研究[J].山西农业大学学报(自然科学版),2011,31(4):308-314. |
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| 作者姓名： | 张鹏骞 张林源 姚延祷 |
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| 作者单位： | 1. 北京麋鹿生态实验中心,北京,100076
2. 山西农业大学林学院,山西太谷,030801 |
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| 摘 要： | 试验以1年生杨树苗木为研究对象,利用便携式光合蒸腾仪对10种不同的杨树进行光合速率以及气孔导度的测定。结果表明:Ⅲ-4-2、Ⅲ-1-18以及Ⅱ-1-3的最大光合贡献率集中在中层,其余七种的最大光合贡献率集中在上层。各杨树的气孔导度与净光合速率呈正相关。
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| 关 键 词： | 杨树 净光合速率(Pn) 光合贡献率 气孔导度(Gs) |
Study on the Photosynthetic Net Rate and Contribution Rate at Different Layers of Various Poplars |
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| ZHANG Peng-qian,ZHANG Lin-yuan,YAO Yan-tao.Study on the Photosynthetic Net Rate and Contribution Rate at Different Layers of Various Poplars[J].Journal of Shanxi Agricultural University,2011,31(4):308-314. |
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| Authors: | ZHANG Peng-qian ZHANG Lin-yuan YAO Yan-tao |
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| Institution: | ZHANG Peng-qian1,ZHANG Lin-yuan1,YAO Yan-tao2(1.Beijing Milu Ecological Research Centre,Beijing 100076,China,2.College of Forestry,Shanxi Agricultural University,Taigu Shanxi 030801,China) |
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| Abstract: | The experiment used ten types annual poplars as the materials,and the photosynthetic rate and stomatal conductance（Gs） were tested by the portable photosynthesis system.The result showed that： Ⅲ-4-2,Ⅲ-1-18 andⅡ-1-3 had the largest photosynthetic contribution rate focused in the middle layer and the others in the top layer.The Gs and net photosynthetic rate（Pn） showed positive correlation. |
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| Keywords: | Poplar Net photosynthetic rate(Pn) Photosynthetic contribution rate Stomatal conductance(Gs) |
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