天台山落叶阔叶林群落学特性研究

A Study on Community Characteristics of Deciduous Broad-Leaved Forest at Tiantai Mountain of Zhejiang Province

天台山落叶阔叶林植物种类丰富,科属组成分散,据样地调查统计,有维管植物74科,190属,276种,群落各样地间的相似系数除沟谷3样地有较高的相似性外,其余各样地的相似系数均较低,群落垂直结构较复杂,地上成层明显,样地内多数优势种群缺少更新幼苗,年龄结构为衰退型,群落处于不稳定状态。

There are various species of plants in the deciduous broad - leaved forest at Tiantai Mountain,and itsfamily and genus are of scattered composition. According to the survey on plots,there are 276 species in 190 genusesbelonging to 74 families of vascular plants. All the coefficients of similarity in different plots of the community arelow except that there is a comparatively high coefficient of similarity in three quadrat. The vertical structure of com-munity is relatively complicated and its supraterraneous stratification is remarkable. Most dominant populations with-in plots lack the refreshed seedings,and the age structure is declining. So the community is in an unstable state.