井冈山自然保护区南方红豆杉群落物种多样性研究

应用物种多样性指数对井冈山南方红豆杉群落不同样地、不同层次、不同人为干扰程度下群落的物种多样性进行研究。结果表明：南方红豆杉群落乔木层物种多样性指数偏低,在各样地间多样性指数测值变幅较大;测度南方红豆杉群落物种多样性时,各种多样性指数基本表现出相同的趋势;总体来看,南方红豆杉群落物种多样性在群落不同层次的变化规律为：灌木层〉草本层〉乔木层;各层次变化幅度从大到小的顺序为：乔木层〉草本层〉灌木层;人为因子的干扰对南方红豆杉群落的物种多样性有很大的影响。

Study on Species Diversity of Taxus mairei Community in Jinggang Mountain Nature Reserve

Species diversity of Taxus mairei community in Jinggang mountain was studied by field investigation.The results showed that Jinggang mountain had low species diversity index in tree layer,which altered too much between investigated plots,the variation patterns of species diversity of Taxus mairei communities were similar whichever the index was used.Generally,the order of the magnitude of species diversity was shrub layer>herb layer>tree layer.The variation of indices order was tree layer>herb layer>shrub layer.The species diversity of Taxus mairei communities was greatly influenced by artificial factors.