| 武夷山四新少叶黄杞常绿阔叶林物种组成及多样性特征 |
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| 引用本文： | 杨青,丁晖,方炎明,陈晓,徐海根,李蒙,徐鲜钧.武夷山四新少叶黄杞常绿阔叶林物种组成及多样性特征[J].福建农林大学学报(自然科学版),2017,46(5). |
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| 作者姓名： | 杨青 丁晖 方炎明 陈晓 徐海根 李蒙 徐鲜钧 |
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| 作者单位： | 1. 武夷山生物研究所,福建 武夷山,354300;2. 环保部南京环境科学研究所,江苏 南京,210042;3. 南京林业大学森林资源与环境学院,江苏 南京,210037 |
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| 摘 要： | 通过对武夷山四新常绿阔叶林物种组成、生物多样性以及样方种—面积曲线进行研究,探讨以少叶黄杞为优势种的中亚热带常绿阔叶林生态系统的组成、结构和功能.采用相邻格子样方法进行样方调查,结果表明:样方内维管植物有35科67属139种;以壳斗科、杜鹃花科、杜英科、山茶科为主,栲属、杜鹃花属、杜英属为重要属;优势树种为少叶黄杞、米槠、南岭栲、赤楠.表明四新常绿阔叶林在取样面积大于0.48 hm2时,物种数量趋于稳定,拟合曲线公式为:y=21.836lnx-87.287(R2=0.990 2);样地植物胸径小于6 cm的植株数占73.89%,落叶植物仅占12.38%.多样性分析结果表明:样地内物种丰富,分布较均匀,较多的树种构成了群落的优势种.
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| 关 键 词： | 武夷山 少叶黄杞 重要值 种—面积曲线 植物多样性 |
Species composition and diversity of evergreen broad-leaved forest of Engelhardtia fenzelii in Sixin area of Wuyi Mountain |
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| YANG Qing,DING Hui,FANG Yanming,CHEN Xiao,XU Haigen,LI Meng,XU Xianjun.Species composition and diversity of evergreen broad-leaved forest of Engelhardtia fenzelii in Sixin area of Wuyi Mountain[J].Journal of Fujian Agricultural and Forestry University,2017,46(5). |
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| Authors: | YANG Qing DING Hui FANG Yanming CHEN Xiao XU Haigen LI Meng XU Xianjun |
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| Abstract: | The species composition and diversity of evergreen broad-leaved forest community of Engelhardtia fenzelii in Sixin area of Wuyi Mountain was investigated by contiguous grid quadrats and species-area curve method. The result showed that there are 139 vascular plant species within sample square, belonging to 67 genera and 35 families. Fagaceae, Ericaceae, Elaeocarpaceae and Theaceaeare are the dominant families. Castanopsis, Rhododendron, Rhododendron, Elaeocarpus, and Syzygium are the dominant genera. Engelhardtia fenzelii, Castanopsis carlesii, Castanopsis fordii, Syzygium buxifolium are the dominant tree species. The fitting equation of species-area curve is y = 21.836lnx-87.287( R2= 0.9902) , and the species number tends to stabilized when the inves-tigation quadrat area was set up more than 0.48 hm2 . The trees with DBH less than 6 cm accounted for 73.89%, and the deciduous species accounted for 12.38% of the total species. Diversity analysis showed that the species was rich and evenly distributed in ever-green broad-leaved forest of Engelhardtia fenzelii in Sixin area of Wuyi Mountain. The abundance was not concentrated in a few spe-cies, but more species constituted the dominant species of the community. |
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| Keywords: | Wuyi Mountain Engelhardtia fenzelii important value relative basal area plant species diversity |
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