| 濒危植物景东翅子树种群的分布、年龄结构及其动态特征 |
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| 引用本文： | 袁春明,司马永康,耿云芬,郝佳波,毛云玲,魏大坤,何琪金.濒危植物景东翅子树种群的分布、年龄结构及其动态特征[J].东北林业大学学报,2011,39(5):15-16,33. |
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| 作者姓名： | 袁春明 司马永康 耿云芬 郝佳波 毛云玲 魏大坤 何琪金 |
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| 作者单位： | 国家林业局云南珍稀濒特森林植物保护和繁育重点实验室(云南省林业科学院);景东彝族自治县林业局; |
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| 基金项目： | 国家林业局珍稀濒危物种野外救助与繁育项目 |
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| 摘 要： | 调查研究了景东翅子树种群的分布、年龄结构及其动态特征,并讨论了濒危的原因.野外调查的4个种群中,3个分布于季风常绿阔叶林,1个分布于次生灌丛.在4个种群中共调查到景东翅子树99株(含幼树).结果表明,景东翅子树属于衰退型种群,其中缺乏幼树和胸径≥20 cm的大树.景东翅子树种群的存活曲线为DeevryⅢ型,生活史中存在...
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| 关 键 词： | 景东翅子树 年龄结构 静态生命表 存活曲线 濒危原因 |
Population Distribution,Age Structure and Its Dynamic Feature of Endangered Species Pterospermum kingtungense |
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| Yuan Chunming,Sima Yongkang,Geng Yunfen,Hao Jiabo,Mao Yunling,Wei Dekun,He Qijin.Population Distribution,Age Structure and Its Dynamic Feature of Endangered Species Pterospermum kingtungense[J].Journal of Northeast Forestry University,2011,39(5):15-16,33. |
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| Authors: | Yuan Chunming Sima Yongkang Geng Yunfen Hao Jiabo Mao Yunling Wei Dekun He Qijin |
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| Institution: | Yuan Chunming,Sima Yongkang,Geng Yunfen,Hao Jiabo,Mao Yunling(Key Laboratory for Conservation of Rare,Endangered and Endemic Forest Plants in Yunnan Province(Yunnan Academy of Forestry),State Forestry Administration,Kunming 650204,P.R.China),Wei Dakun,He Qijin(Forestry Bureau of Jingdong Yi Autonomous County) |
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| Abstract: | A survey was conducted to study the population distribution,age structure and its dynamic features of Pterospermum kingtungense.The causes of endangerment for P.kingtungense were also discussed.Four P.kingtungense populations were surveyed in the field,of which three were distributed in evergreen broad-leaved forests,and one in secondary bushwood.A total of 99 individuals(including saplings) were recorded in the four populations.Results show that the P.kingtungense populations are declining with the lack of... |
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| Keywords: | Pterospermum kingtungense Age structure Static life table Survival curves Causes of endangerment |
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