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、ＳｈａｎｎｏｎＷｉｅｎｎｅｒ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。
The 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, ShannonWienner 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.
出处
《生物多样性》
CAS
CSCD
1998年第3期191-196,共6页
Biodiversity Science
基金
国家自然科学基金
关键词
森林群落
物种多样性
大青沟
forest community, species diversity, Daqinggou
