| 珍稀濒危植物长苞铁杉林物种多样性的梯度效应研究 |
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| 引用本文： | 林琴琴,吴承祯,洪伟,王萍兰,王洪翠,陈灿.珍稀濒危植物长苞铁杉林物种多样性的梯度效应研究[J].江西农业大学学报,2005,27(5):713-718. |
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| 作者姓名： | 林琴琴 吴承祯 洪伟 王萍兰 王洪翠 陈灿 |
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| 作者单位： | 福建农林大学,林学院,森林生态研究所,福建,福州,350002 |
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| 基金项目： | 国家自然科学基金（30471385）、福建省科技厅重大科技攻关（2001F007）及福建省自然科学基金（B0510024）共同资助项目 |
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| 摘 要： | 在分析不同海拔珍稀濒危植物长苞铁杉林群落结构及物种重要值特征的基础上，应用物种多样性的丰富度指数、多样性指数、均匀度等指标测定珍稀濒危植物长苞铁杉群落不同海拔梯度物种多样性，分析长苞铁杉林物种多样性梯度变化效应。结果表明，长苞铁杉群落物种多样性梯度变化规律明显；尤其长苞铁杉物种受梯度效应影响显著，高海拔重要值明显高于中、低海拔；总体上物种多样性高，种类组成复杂，群落乔木层、灌木层、草本层和层间植物层次明显。
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| 关 键 词： | 长苞铁杉 物种多样性 梯度变化 珍稀濒危植物 海拔梯度 铁杉林 效应研究 长苞铁杉群落 物种重要值 群落结构 |
| 文章编号： | 1000-2286（2005）05-0713-06 |
| 收稿时间： | 2005-04-12 |
| 修稿时间： | 2005-07-21 |
A Study on Gradient Effect of Species Diversity in Rare and Endangered Plant Tsuga longibracteata Community |
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| LIN Qin-qin,WU Cheng-zhen,HONG Wei,WANG Ping-lan,WANG Hong-cui,CHEN Can.A Study on Gradient Effect of Species Diversity in Rare and Endangered Plant Tsuga longibracteata Community[J].Acta Agriculturae Universitis Jiangxiensis,2005,27(5):713-718. |
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| Authors: | LIN Qin-qin WU Cheng-zhen HONG Wei WANG Ping-lan WANG Hong-cui CHEN Can |
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| Institution: | Forestry College, Institute of Forest Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China |
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| Abstract: | The species diversity effect of Tsuga longibractcata community in different altitude gradients were measured by means of species evenness, species diversity index and species richness index, based on the analysis on the community structure and other important values. It was indicated that the species diversity in Tsuga longibractcata community is high in total; that being affected by the change law of gradient, the important values of Tsuga longibractcata in the high altitude is obviously higher than in the middle and low altitudes; that the species structure is complicated. The communities have four layers tree stratum, shrub layer, lianas and herb layer. |
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| Keywords: | Tsuga longibracteata species diversity gradient change |
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