万木林主要森林群落特征及演替动态

选择闽北较有代表性的建瓯万木林自然保护区封禁保护达６００多年的中亚热带森林，包括常绿阔叶林，马尾松林及与万木林相连的七道村罗浮栲次生林作为研究对象，据群落中各组成成分的重要值对群落进行聚类分析、主成分分析及演替分析。

THE COMMUNITY FEATURES AND SUCCESSION OF THE FLORA IN WANMULIN NATURAL RESERVE

The flora of Wanmulin Natural Reserve of Fujian Province, protected for nearly 600 years, has succeeded to a highly diversified and stable communities which contained evergreen broad leaf forests, Masson pine forests and secondary forests of Castanopsis This paper presented the cluster and principle canonical analysis (PCA) on the base of the importance value of community components The results were as follows: the pioneer community of the typical succession series was Masson pine forest (in barren sites along the ridges of the mountain) and secondary forest of Castanopsis (cut over areas) At the mid and later period of succession, forest of Castanopsis carlesii and C fargesii appeared The climax vegetation was evergreen broad leaf forest of Castanopsis Later climax community which major components were broad leaf forests of Cinnamomum chekiangense of Lauraceae in partial areas with favorite conditions While the community of Altingia gracilipes was the transitional stage in this area The formulation and succession trend of Tsoongiodendron odorum were also discussed.