| 岷江干旱河谷植物群落分布特征及梯度效应 |
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| 引用本文： | 林勇明,王道杰,周麟,陈婷婷,田兵伟,苏凤环.岷江干旱河谷植物群落分布特征及梯度效应[J].福建林学院学报,2009,29(4). |
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| 作者姓名： | 林勇明 王道杰 周麟 陈婷婷 田兵伟 苏凤环 |
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| 作者单位： | 1. 福建农林大学林学院,福建,福州,350002
2. 中国科学院水利部成都山地灾害与环境研究所,四川,成都,610041 |
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| 基金项目： | 中国科学院知识工程重要方向基金资助项目，中国科学院西部行动计划(二期)项目 |
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| 摘 要： | 为了探讨岷江上游干旱河谷典型地段植物群落结构与物种多样性梯度变化效应,采用物种多样性研究中常用的多样性指数、均匀度等指标测定茂县飞虹桥两岸植物群落不同海拔梯度物种多样性,分析了植物群落物种多样性梯度变化效应及坡向差异性。结果表明,飞虹桥两岸植物群落物种多样性梯度变化规律明显,随着海拔的下降,不论是阴坡还是阳坡,受焚风效应的影响程度不断加大,群落微生境产生劣变,物种数目、多样性指数、群落盖度、物种高度等指标均呈减小的趋势;因阳光直射时间长短的差异,阳坡的干旱效应影响范围高于阴坡。
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| 关 键 词： | 干旱河谷 植物群落 物种多样性 梯度变化 |
Distribution characters and gradient effect of species diversity of plant community in typical district of the arid valley in the upper reach of Minjiang River |
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| LIN Yong-ming,WANG Dao-jie,ZHOU Lin,CHEN Ting-ting,TIAN Bing-wei,SU Feng-huan.Distribution characters and gradient effect of species diversity of plant community in typical district of the arid valley in the upper reach of Minjiang River[J].Journal of Fujian College of Forestry,2009,29(4). |
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| Authors: | LIN Yong-ming WANG Dao-jie ZHOU Lin CHEN Ting-ting TIAN Bing-wei SU Feng-huan |
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| Institution: | LIN Yong-ming1,WANG Dao-jie2,ZHOU Lin2,CHEN Ting-ting1,TIAN Bing-wei2,SU Feng-huan2 (1.College of Forestry,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China,2.Institute of Mountain Hazards and Environment,Chinese Academy of Sciences and Ministry of Water Conservancy,Chengdu,Sichuan 610041,China) |
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| Abstract: | The structure of plant communities and gradient change of species diversity in typical district(Feihong Bridge in Mao County) of the upper reach of Minjiang River were studied.In sunny and shady slopes of Feihong Bridge,twenty four plots with 25 m2 at different altitude were used for investigation.Based on the investigation,importance value,species diversity index and species richness index were analyzed for plant communities at different altitude.The results showed that as the altitude decrease,both sunny ... |
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| Keywords: | arid valley plant community species diversity gradient change |
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