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Position: Home > Articles > Sprouting Traits of Endangered Plant Pterospermum kingtungense Journal of Northeast Forestry University 2012,40 (3) 113-114+122

濒危植物景东翅子树的萌生特征

作  者:
袁春明;司马永康;耿云芬;郝佳波;毛云玲;罗忠华;鲁成荣;袁德财
单  位:
云南哀牢山国家级自然保护区景东管理局;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)
关键词:
景东翅子树;种群;萌生更新;恢复;人为干扰
摘  要:
调查研究了濒危植物景东翅子树种群的起源与萌生特征。结果表明:所调查的4个种群中共记录到景东翅子树99株,其中萌生形成的植株35株,占总株数的35.4%;萌生个体主要处于幼树(D<2 cm)和小树(2 cm≤D<5 cm)阶段,二者占全部萌生个体的85.7%。景东翅子树萌生更新的方式主要是根部萌生和干基萌生2种。4个种群平均的萌生百分比为59.2%,萌生个体萌生的平均茎数为2.8个。景东翅子树萌生的方式和萌生能力的大小与人为干扰的状况与关。萌生在干扰条件下景东翅子树种群的恢复和维持中起到了重要的作用。
译  名:
Sprouting Traits of Endangered Plant Pterospermum kingtungense
作  者:
Yuan Chunming,Sima Yongkang,Geng Yunfen,Hao Jiabo,Mao Yunling(Yunnan Key Laboratory for Conservation of Rare,Endangered and Endemic Forest Plants(Yunnan Academy of Forestry),State Forestry Administration,Kunming 650204,P.R.China);Luo Zhonghua,Lu Chengrong,Yuan Decai(Jingdong Administrative Bureau of Ailao Mountain National Nature Reserve in Yunnan)
关键词:
Pterospermum kingtungense;Populations;Sprouting regeneration;Restoration;Human disturbances
摘  要:
The population derivation and sprouting characteristics of endangered plant Pterospermum kingtungense were studied.A total of 99 individuals were recorded in four investigated populations.The number of sprouts is 35,accounting for 35.4% of the total individuals.The sprouts primarily occur in saplings(diameter at breast height(DBH) <2 cm) and small trees(2 cm≤DBH<5 cm),taking up 85.7% of the total sprouts.The main sprouting modes of P.kingtungense are root sprouting and stem sprouting.The average proportion of sprouting individuals to all the individuals in the four populations is 59.2%,while the number of sprouts per sprouting individual is 2.8.Sprouting modes and capacity of P.kingtungense are related to forest disturbance regime.The sprouting ability of P.kingtungense plays an important role in the restoration and maintenance of its populations under disturbances.

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