Abstract: In order to study vertical band forest community characteristics and geographical region component, 5 community-type zones were set in Huanggang Mountain northwest slope, followed by evergreen broad-leaved forest, evergreen and deciduous broad-leaved mixed forest, broadleaf-conifer mixed forest, coniferous forest, middle-mountain moss elfin wood. Through statistical analysis, the results showed that Huanggang Mountain vertical band forest were made up of typical mid-subtropical zonal vegetation, evergreen broadleaf and evergreen coniferous trees as the main dominant species. Species similarity index showed that there were great difference of the species composition in different vegetation communities, but also showed the forest rich species diversity in Huanggang Mountain. Floristic composition was complex and diverse, and had the nature of from tropical transition to temperate zone properties, but the mainly elements also was tropical.

Key words: Huanggang Mountain, vertical band, community composition, geographical region

摘要： 为研究森林垂直带的群落组成特征及其植物地理区系成分，于黄岗山西北坡从低海拔至高海拔设置5个群落带，依次为常绿阔叶林、常绿落叶阔叶混交林、针阔混交林、针叶林、中山苔藓矮曲林。通过统计分析，结果显示，黄岗山垂直带森林具有典型的中亚热带地带性植被特点，以常绿阔叶树和常绿针叶树为主要优势种；种的相似性指数表明，不同植被群落间物种组成具有较大的差异性，同时也说明黄岗山森林丰富的物种多样性；植物区系地理成分复杂多样，以热带成分为主，并具有由热带向温带过渡的性质。

关键词: 黄岗山, 垂直带, 群落组成, 地理区系