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| 台湾相思林和芒草草丛中薇甘菊枝构件的分枝格局及其生物量 | |
| 引用本文： | 张炜银,王伯荪,李鸣光,昝启杰,王勇军.台湾相思林和芒草草丛中薇甘菊枝构件的分枝格局及其生物量[J].植物生态学报,2002,26(3). |
| 作者姓名： | 张炜银 王伯荪 李鸣光 昝启杰 王勇军 |
| 作者单位： | 1. 中山大学生命科学学院,广州,510275 2. 中山大学生命科学学院,广州,510275；广东内伶仃福田国家级自然保护区,深圳，518040 3. 广东内伶仃福田国家级自然保护区,深圳，518040 |
| 基金项目： | 广东省林业科技重点攻关项目 ( 2 0 0 0 0 1)，深圳市科技局项目 ( 2 0 0 0 0 10 5 80 )，国家自然科学基金重大项目 ( 39899370 ) |
| 摘 要： | 外域杂草薇甘菊 (Mikaniamicrantha)具有极强的分枝能力。在枝构件水平上 ,对生长在台湾相思 (Acaciaconfusa)群落和芒草 (Miscanthussinensis)群落中的薇甘菊枝构件的分枝格局和生物量分配的比较分析得出 :1)同芒草群落相比 ,台湾相思群落中薇甘菊各级枝的分枝数、分枝密度和分枝率都低 ,而分枝长度则较长 ;2 )台湾相思群落中薇甘菊以第一级分枝为主 ,而在芒草群落中则以第二级分枝为主 ;3)台湾相思林中薇甘菊枝构件的叶面积率、比叶面积和比茎长及叶片生物量分配显著大于芒草草丛 ;4)两个群落中薇甘菊枝构件的节间长和比叶柄长没有显著差异。这些结果说明薇甘菊枝构件对环境条件变化具不同响应。 |
| 关 键 词： | 薇甘菊(Mikania micrantha) 枝构件 分枝格局 生物量 |
THE BRANCHING PATTERN AND BIOMASS OF MIKANIA MICRANTHA SHOOT MODULES IN ACACIA CONFUSA COMMUNITY AND MISCANTHUS SINENSIS COMMUNITY |
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| ZHANG Wei-Yin WANG Bo-Sun LI Ming-Guang ZAN Qi-Jie , and WANG Yong-Jun.THE BRANCHING PATTERN AND BIOMASS OF MIKANIA MICRANTHA SHOOT MODULES IN ACACIA CONFUSA COMMUNITY AND MISCANTHUS SINENSIS COMMUNITY[J].Acta Phytoecologica Sinica,2002,26(3). | |
| Authors: | ZHANG Wei-Yin WANG Bo-Sun LI Ming-Guang ZAN Qi-Jie and WANG Yong-Jun |
| Affiliation: | ZHANG Wei-Yin 1 WANG Bo-Sun 1 * LI Ming-Guang 1 ZAN Qi-Jie 1,2 and WANG Yong-Jun 2 |
| Abstract: | An exotic weed Mikania micrantha has an extremely high ability to branch. Based on the shoot module level, a comparative analysis was made on the plant branching pattern and biomass allocation of M. micrantha growing in Acacia confusa community and Miscanthus sinensis community. The results indicated that there was a significant variation between the two populations. The branching numbers, branching density and branching ratio of every level branch in A. confusa community were lower than those in M. sinensis community, but the average length of individual branch was longer. The number of primary branches was dominant in A. confusa community, but in M. sinensis community, that was secondary branches. Ratio of blade biomass allocation and characteristics of morphology such as leaf area ratio, specific leaf area and specific stem length of Mikania micrantha shoot modules in A. confusa community were higher than those in Miscanthus sinensis community. While there was no significant difference of length of internodes and specific petiole length of M. micrantha shoot modules in the two communities. The difference of response showed the different sensitivity of shoot module properties to environment changing. |
| Keywords: | Mikania micrantha Shoot module Branching pattern Biomass |
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