摘要
对黄山北坡常绿阔叶林的植物区系成分，外貌，结构，物种多样性和生态优势度，群落类型以及群落稳定性等方面的分析，认为黄山北坡常绿阔叶林是一种中亚热带北缘的常绿阔叶林类型，其中苦槠群系，甜槠群系，青冈群系和小叶青冈群系是黄山地区的顶板类型，青栲群系，绵槠群系为不稳定的常绿阔叶林类型，最终将被青冈群系所取代。
The evergreen broad-leaved forest is widely distributed on the north slope of Mt. Huangshan. Through extensive investigation and analysis of the characteristics, the following conclusions can be achieved. The floristic composition consists of 81 families, 150 genera and 204 species, in which the subtropical elements are of high percentage. The physiognomy of the communities was analyzed on the basis of life forms of plants and their leaf characteristics. In the community structure,there is a distinct stratification and a complex synusiae. For horizonal structure,the pattern of dominant populations follows contagious distribution. Species diversity indexes are about 1.159-3. 680. Ecological dominance indexes are about 0.140-0. 481 Community evenness indexes are about 0. 507-0. 920. There are eight formations and twelve associations. Castanopsis sclerophy-lla formation,C. eyrei formation,Cydobalanopsis glauca formation and C. gracilis formation are stable phytocoenosium types. C. myrsinaefolia formation and Lithocarpus henr-yi formation are unstable phytocoenosium types. They will be replaced by C. glauca for-maton.
关键词
常绿阔叶林
植物群落
黄山
North slop of Mt. Huangshan
Evergreen broad-leaved forest
