洪家河流域天然植物群落生态学特性研究

对洪家河流域天然植物群落主林层优势种重要值、生活型谱以及乔木层和灌木层物种多样性指数、群落均匀度进行了初步分析.研究结果显示,天然植物群落可划分为5个植被类型和17个典型群系,其群落结构复杂,生活型谱以乔、灌木为主体,为典型地带性顶极群落.多样性和均匀度随海拔高度、乔灌木层以及植被类型呈现规律性变化,其多样性变动主要是由人为干扰造成的.

Study on the Ecological Characteristic of the Natural Community in Hongjiahe Valley

The dominant tree species and life form spectrum as well as diversity index of tree and shrub layer and community evenness in Hongjiahe valley were discussed in this paper.The result shows that,the natural community is divided into 5 vegetation type and 17 formation.The complexly community structure and primary life form spectrum are arbor and shrub,so they are zonal climax community.The species diversity index and community evenness show regularly variance accompany with elevation,tree layer and shrub layer as well as vegetation type.The diversity caused by artificial disturbance.