| 印度东北地区一种极频危和特有树种(Ilex khasiana Pork.)再生生态学及种群现状 |
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| 作者姓名： | Upadhaya Krishna Barik Saroj Kanta Adhikari Dibyendu Baishya Ratul Lakadong Nigyal John |
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| 作者单位： | Upadhaya Krishna(Division of Environmental Science, Department of Basic Sciences and Social Sciences, School of Technology, North - Eastern Hill University, Shillong 793 022, India);Batik Saroj Kanta,Adhikari Dibyendu,Baishya Ratul,Lakadong Nigyal John(Centre for Advanced Studies in Botany, School of Life Sciences, North - Eastern Hill University, Shillong 793 022, India) |
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| 摘 要： | 在5个典型自然种群Mylliem(种群1)、Upper Shillong(种群2)、Shillong Peak(种群3)、Laitkor(种群4)和Nongpiyur(种群5)中,详细研究了冬青树(Ilex khasiana)种群结构和再生生态学,旨在探究种群结构和再生能力的影响因素.在全光照(100%),中等光照(50%)和低光照(30%)三种光强度条件下,实验观察表明:在中等和低光照条件下的种苗成活率和生长状态好于在高光照条件下的种苗成活率和生长状态.成年树种群(≥5cm dbh)的密度直径分布揭示了一种再生种群的典型特征.对植被的破坏和人类其他干扰导致森林树冠疏开使光照增强,造成自然种群(L khasiana)幼苗的高死亡率.本研究结果对制定适当的物种保护措施有重要价值.
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| 关 键 词： | 冬青树(Ilex khasiana) 频危物种 种群现状 繁殖 印度东北 |
Regeneration ecology and population status of a critically endangered and endemic tree species (Ilex khasiana Purk.) in north-eastern India |
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| Upadhaya Krishna,Barik Saroj Kanta,Adhikari Dibyendu,Baishya Ratul,Lakadong Nigyal John.Regeneration ecology and population status of a critically endangered and endemic tree species (Ilex khasiana Purk.) in north-eastern India[J].Journal of Forestry Research,2009,20(3). |
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| Authors: | Upadhaya Krishna Barik Saroj Kanta Adhikari Dibyendu Baishya Ratul Lakadong Nigyal John Division of Environmental Science |
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| Institution: | Upadhaya Krishna 1,Barik Saroj Kanta 2,Adhikari Dibyendu 2,Baishya Ratul 2,Lakadong Nigyal John 2 1 Division of Environmental Science,Department of Basic Sciences , Social Sciences,School of Technology,North-Eastern Hill University,Shillong 793 022,India 2 Centre for Advanced Studies in Botany,School of Life Sciences,India |
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| Abstract: | |
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| Keywords: | flex khasiana endangered species population status regeneration north-eastern India |
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