摘要
2009年8—9月在福建南平芒荡山(Ⅰ)、贵州从江瑶人山(Ⅱ)、广西金秀大瑶山(Ⅲ)、云南屏边大围山(Ⅳ)和西双版纳南糯山(Ⅴ)等5个不同类型的分布区内设置样地,对越南安息香群落进行实地调查,研究了群落结构特征与物种多样性。结果表明:5个分布区的越南安息香群落均含有相对较少的物种数,越南安息香在各群落多与壳斗科、松科、杉科、桦木科、金缕梅科和山茶科等物种共优组成乔木层,或是壳斗科、杉科和漆树科的伴生物种;灌木层和草本层物种数量也较少,灌木层和草本层间还有一定数量的层间植物;群落丰富度指数(Dma)为乔木层>灌木层>草本层,优势度指数(D)和多样性指数(H)较小,变化趋势为Ⅴ>Ⅱ>Ⅳ>Ⅰ>Ⅲ。分布区气候类型的不同导致群落间共有物种数目少,相似性系数维持在较低水平。
In August and September 2009,the plots were established in Mangdang mountain of Nanping,Fujian（Ⅰ）,Yaoren mountain of Congjiang,Guizhou（Ⅱ）,Dayao mountain of Jinxiu,Guangxi（Ⅲ）,Dawei mountain of Pingbian（Ⅳ）and Nanru mountain of Xishuangbanan（Ⅴ）,Yunnan,which represent various type of distribution region,respectively.An investigation was made on the community structure and species diversity.The result indicated that there were fewer species in Styrax tonkinensis community in the five distribution regions.Styrax tonkinensis and the species of Fagaceae,Pinaceae,Taxodiaceae,Betulaceae,Hamamelidaceae,Theaceae were the dominant population in tree layer,or Styrax tonkinensis was accompanying specie.There were fewer species in shrub layer and herb layer,and some interlayer species between shrub layer and herb layer.The ranking of community richness index（Dma） was tree layer,shrub layer and herb layer.Dominance index（D） and diversity index（H） were smaller,the order was Ⅴ,Ⅱ,Ⅳ,Ⅰ and Ⅲ.The climate difference of distribution region may result in small common species and similarity coefficient among community.
出处
《林业科学研究》
CSCD
北大核心
2011年第4期500-504,共5页
Forest Research
基金
浙江省重大科技专项重点项目(2007C12034
2008C12019)
浙江省创新团队建设与人才培养项目(2010F20014)
浙江省省院合作林业科技项目(2010SY06)
关键词
越南安息香
分布区
群落特征
物种多样性
Styrax tonkinensis
distribution region
community characteristics
species diversity
