太岳林区连翘灌丛群落特征的研究

根据野外调查的样地资料，本文分析了分布于山西太岳山林区的连翘灌丛群落的种类组成、区系成分、外貌特征、垂直结构等基本生态学特征，并将连翘样方以及上层无乔木覆盖灌木为建群层的连翘样方归为9个群系，对连翘群落的特征以及连翘株高随海拔梯度的变化作出相应分析．结果表明：该群落种类组成丰富，区系成分以北温带分布为主，生活型以高位芽占优势。垂直分化明显，一般分为乔木层、灌木层、草本层3层，9个群系由于地理位置不同、生境特点各异，因而种类组成不同，连翘在群系中的地位也不同，各群系中主要灌木种群的分布格局一般为集群型，少数随机型，随着海拔的逐渐上升，连翘平均株高先升后降。

Study on the characteristics of Forsythia suspensa community in Taiyue wood district

According to the data of field plots,in this paper the author deal with the preliminary characteristics such as the floristic composition,the geographical elements,the physiognomy characteristics and the vertical structure of Forsythia suspensa community in Taiyue wood district of Shanxi Province,divide the samples which has no tree stratum above them into nine formations,then study the characteristics of Forsythia suspensa community and the distribution of the main shrub populations in the nine formations.The change of Forsythia suspensa's highth according to the elevation was also discussed.The results show that the floristic composition of the community is plentiful,the temperate floristic elements occupy a dominant position,Phanerophytes is dominant,the vertical structure is obvious and can be commonly divided into three layers:the tree stratum,the shrub stratum and the herb stratum.Because the geographical position and the living environment are different in the nine formations,the floristic composition and the position of Forsythia suspensa are different.Most of the main populations in the nine formations tend to contagious distribution,only a few distribute randomly.Along with the increasing of the elevation,the highth of Forsythia suspensa increase first and then reduce.