安徽牯牛降国家级自然保护区常绿阔叶林的群落特征

Community Features of the Evergreen Broadleaved Forest in Anhui Guniujiang National Nature Reserve

通过设置固定样地,对牯牛降国家级自然保护区天然常绿阔叶林物种组成、结构特征进行研究。结果表明,样地共记录到胸径≥1 cm的植株964株,隶属23科35属61种,区系体现了亚热带向暖温带的过渡性;乔木以壳斗科为优势科,甜槠、栲树、马银花为优势种;样地内胸径5~10 cm的乔木占总植株比43.57%,群落结构总体表现稳定。此研究旨在深入了解牯牛降国家级自然保护区天然常绿阔叶林群落的结构特征,为森林资源的保护提供参考。

In this paper, a permanent sample plot was set up to study the species composition and structural features of the natural evergreen broadleaved forest in Guniujiang National Nature Reserve. The results showed there were 964 recorded plants with DBH ≥1 cm belonging to 61 species in 35 genera of 23 families, showing transitional floristic features from the subtropical zone to the warm temperate zone;for the tree species, the dominant family is Fagaceae, and the dominant species are Castanopsis eyrei, Castanopsis fargesii and Rhododendron ovatum;The trees with DBH reaching 5 ~10 cm in the sample plot accounted for 43.57% of all the plants,forming an overall stable community structure. The study aims to have a deep understanding of the structural features of the natural evergreen broadleaved forest in the reserve and provide reference for forest resources conservation.