天然次生林群落垂直结构的定量研究

本文以三个次生林群落类型为对象,运用相对多度(RA)、相对频度(RF)、相对显著度(RD)及重要值(Ⅳ)等指标,对其垂直结构进行了深入分析,运用填充系数(F)对群落的层次结构研究提供重要依据;在参考多种分层系统的基础上运用动态的分层方法对群落的层次结构进行了较为合理的划分;分析了次生林群落的垂直结构特征对于群落生产力及其动态演替趋势的意义.

The quantitative study on vertical structures of the natural secondary forest communities

The vertical structures of the three natural secondary forest communities were deeply analysed by using indeces such as relative abundance(RA), relative frequency (RF) ,relative dominance(RD)and importance value(IV)ect. The replenish index was used as and important reference to study community vertical structure. On the basis of refering many systems of classifying vertical layers,the vertical layer structures of the communities were feasibly divided by dynamic classifying method. And the significance of vertical structural characteristics of secondary forest community for community productivity and its dynamic succession trend was analysed.