百户湾天然植被群落结构及多样性分析

Analysis of Community Structure and Species Diversity in Natural Vegetation of Baihuwan

对百户湾天然植被群落结构及物种多样性进行了研究 ,结果显示 :(1 )天然植被有 5种典型群落 ,其结构复杂 ,地上成层现象明显 ,构成乔木层优势种分属 9科 1 6属 ,以落叶阔叶成分为主体 ;(2 )各群落生活型谱以乔灌木等高位芽植物占绝对优势 ;(3)该天然植被物种丰富 ,有维管束植物 1 58科 454属 82 3种 ,珍稀植物 1 5种 ;(4)群落物种多样性指数随海拔高度和人为干扰呈规律性变化 .

This paper studies the community structure and species diversity in natural vegetation of Baihuwan The results show that: (1) The natural vegetation has 5 typical community.The community structure is complicated and the vertical structure is clear. The dominant tree species include 9 families and 16 species.The tree layer and main component part is deciduous board-forest.(2)The phanerophytes such as tree and shrub predominate in the biological spectrom.(3)The species composition is complex,including 158 families,454 genera and 823 species in this natrual vegetation ,of which there are 15 species of rare-valuable plants .(4)The species diversity index varies with altitude artificial disturbance.