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OALib Journal期刊
ISSN: 2333-9721
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旅游干扰下五台山不同植被景观区物种多样性特征
DOI: 10.3724/SP.J.1145.2012.00559, PP. 559-564
Keywords: 五台山,植被景观区,物种多样性,丰富度,均匀度,旅游干扰,双向指示种分析
Abstract:
利用双向指示种分析方法（two-wayindicatorspeciesanalysis，twinspan）和6个物种多样性指数，研究了旅游干扰下五台山不同植被景观区物种多样性的特征.结果表明：1）twinspan将所有样地划分为9类植被景观区，从ⅰ区到ⅸ区，随着旅游干扰程度的增加，植被景观大致由乔灌草区向灌草区、草本区和居民区方向变化.2）乔木层物种的丰富度和综合多样性随着旅游干扰的减小而趋于增加，但是其均匀度没有表现出明显的规律性.3）灌木层物种的丰富度和综合多样性也随着旅游干扰的减小而趋于增加，至于其均匀度，则呈现出在中度干扰下值最大，干扰很小的地方次之，在重度干扰下则最小.4）草本层物种的丰富度、均匀度和综合多样性指数均在旅游干扰适度的地方达到了最大值，在旅游干扰很小的地方，各种值则次之，在干扰严重的地方为最小.5）从整个植被层物种多样性的角度看，随着旅游干扰程度的减少，物种丰富度指数、均匀度指数和综合多样性指数均呈现趋于增加的趋势.表4参15
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