生物多样性 ›› 1998, Vol. 06 ›› Issue (3): 191-196.DOI: 10.17520/biods.1998029

• 论文 • 上一篇    下一篇

大青沟森林植物群落物种多样性研究

郑元润   

  1. (中国科学院植物研究所植被数量生态学开放实验室,  北京 100093)
  • 收稿日期:1997-07-17 修回日期:1997-12-13 出版日期:1998-08-20 发布日期:1998-08-20

Species diversity of Daqinggou forest plant community

ZHENG Yuan-Run   

  1. Laboratory of Quantitative Vegetation Ecology , Institute of Botany , The Chinese Academy of Sciences , Beijing 100093
  • Received:1997-07-17 Revised:1997-12-13 Online:1998-08-20 Published:1998-08-20

摘要:

大青沟森林植物种类非常丰富,约占内蒙古自治区植物种数的三分之一,生物资源十分丰富。本文分别用Simpson指数、Shannon-Wienner指数和均匀度指数计测生态优势度、不同植物群落的物种多样性、群落物种多度的均匀度。结果表明:由于大青沟森林植物群落属于隐域性植被,从沟底到沟沿,小气候的差异较为明显,存在着生境梯度,但由于乔、灌、草综合作用的影响,各群落类型及生境梯度上的物种多样性的差异不十分明显。这可能是特殊森林群落类型长期适应隐域性生境条件的结果,它为我们改造周边环境提供了有益的启示。

AbstractThe plant species and diversity are very abundant in Daqinggou forest plant community , it’s about one third of total species in Inner Mongolia Autonomous Region. Ecological dominance , species diversity and evenness of community are calculated by Simpson index , Shannon2Wienner index and Evenness index individually. The results are as follows : owing to the Daqingou forest plant community is a intrazonal community type , from bottom of ditch to top , difference of microclimate and environment gradient are significant . Because comprehensive effects of trees , shrubs and grasses , difference of species diversity in various communities and in environment gradient is not very significant , that may be results of special forest community adapts azonal environment in long time , that give us some interesting inspiration to improve environment around Daqinggou district .