| 湖南德夯河谷特殊生境典型植物群落特征研究 |
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| 引用本文： | 徐亮,陈功锡,张代贵.湖南德夯河谷特殊生境典型植物群落特征研究[J].生命科学研究,2011,15(4). |
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| 作者姓名： | 徐亮 陈功锡 张代贵 |
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| 作者单位： | 吉首大学植物资源保护与利用湖南省高校重点实验室,中国湖南吉首,416000 |
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| 基金项目： | 国家自然科学基金资助项目(30770157) |
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| 摘 要： | 对德夯河谷特殊生境区典型植物群落的研究表明:1)不同群落物种的组成、结构和多样性均存在较大差异,常绿落叶阔叶混交林的物种最多,达74种;常绿落叶阔叶林的乔木种类最为丰富,有20种;次生竹林的物种多样性指数最高,Shannon-Wiener指数和均匀度分别为6.70、3.83;2)科层次上,各群落内热带分布科数量明显高于温带分布科;属层次上,温带分布成分进一步发展,各个群落内均以温带性质为主.除自然生境条件的差异外,人类不同强度的干扰可能是造成各群落特征变化的主要原因.
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| 关 键 词： | 群落特征 干扰 特殊生境 德夯 |
Study on Characteristics of the Representative Plant Communities in Dehang Valley Habitat,Hunan Province |
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| XU Liang,CHEN Gong-xi,ZHANG Dai-gui.Study on Characteristics of the Representative Plant Communities in Dehang Valley Habitat,Hunan Province[J].Life Science Research,2011,15(4). |
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| Authors: | XU Liang CHEN Gong-xi ZHANG Dai-gui |
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| Institution: | XU Liang,CHEN Gong-xi*,ZHANG Dai-gui(Key Laboratory of Plant Resources Protection and Utilization,Jishou University,Jishou 416000,Hunan,China) |
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| Abstract: | The representative plant communities in Dehang valley habitat was studied.The results are as follows: 1) There is quite different among plant composition,structure and diversity of the communities.There is the highest species diversity in the evergreen and deciduous broad-leaved mixed forest,74 species,and the most abundance arbor species in the evergreen broad-leaved forest,20 species.The statistics of species diversity indices show that both Shannon-Wiener index(6.70) and uniformity(3.83) in the secondary... |
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| Keywords: | community characteristic disturb special habitat Dehang |
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