| 紫茎泽兰及其伴生种的光合特性 |
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| 引用本文： | 韩利红,刘潮,卯霞,张梅芬. 紫茎泽兰及其伴生种的光合特性[J]. 曲靖师范学院学报, 2011, 30(6): 45-49 |
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| 作者姓名： | 韩利红 刘潮 卯霞 张梅芬 |
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| 作者单位： | 曲靖师范学院云贵高原生物多样性研究所,云南曲靖,655011 |
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| 基金项目： | 云南省教育厅科学研究基金项目(2010C023,2011Y009); 曲靖师范学院科研基金项目(2009QN020);曲靖师范学院生物多样性保护科技创新团队专项基金阶段性成果 |
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| 摘 要： | 比较研究了紫茎泽兰及其伴生种在干旱条件下的光合特性,了解紫茎泽兰在干旱条件下的入侵特性,探讨紫茎泽兰具有较强入侵性的原因.结果表明,在干旱胁迫条件下,紫茎泽兰最大光合速率(Pmax)并不高,紫茎泽兰通过关闭气孔,降低蒸腾速率(Tr),提高水分利用效率(WUE)等方式来适应胁迫环境.紫茎泽兰通过保持较长的生长时期获得生长优势,这可能是其入侵干旱贫瘠环境的策略之一.
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| 关 键 词： | 紫茎泽兰 伴生种 光合特性 入侵 |
Photosynthetic Characteristics Comparison between Eupatorium Adenophorum and Its Associated Species |
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| Han Lihong,Liu Chao,Mao Xia,Zhang Meifen. Photosynthetic Characteristics Comparison between Eupatorium Adenophorum and Its Associated Species[J]. Journal of Qujing Normal College, 2011, 30(6): 45-49 |
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| Authors: | Han Lihong Liu Chao Mao Xia Zhang Meifen |
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| Affiliation: | Han Lihong,Liu Chao,Mao Xia,Zhang Meifen (Research Institute of Yunnan-Guizhou Plateau Biodiversity,Qujing Normal University,Qujing Yunnan 655011,P.R.China) |
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| Abstract: | The photosynthetic characteristics of Eupatorium adenophorum and its six associated species were comparatively studied to explore the invasive characteristics under arid conditions of E.adenophorum.The results showed that maximum photosynthetic rate(Pmax) of E.adenophorum is not high under drought stress conditions;that it shuts up stomata to reduce transpiration,increases water use efficiency,to adapt the coercive environment.E.adenophorum could maintain a longer growth period to obtain growth advantage,wh... |
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| Keywords: | Eupatorium adenophorum associated species photosynthetic characteristics invasion |
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