华安贡鸭山森林群落物种多样性研究

A Study on the Species Diversity of Forest Community in Gongyashan, Huaan, Fujian

对福建华安贡鸭山植物区系和群落物种多样性进行调查与分析,结果表明,贡鸭山植物种类丰富,计有维管束植物120科273属428种(含变种),其中蕨类植物22科33属45种,裸子植物5科7属7种,被子植物93科233属376种;植物区系成分复杂,联系广泛,以热带亚热带成分为主,属、种分别占62.82%和65.71%,其植被为中亚热带向南亚热带过度类型;9个主要森林群落的物种多样性以东南石枥林为最高,Dsh达3.5417,其次为上杭锥林群落,Dsh达3.0183,而马尾松林群落最低,Dsh指数仅为1.4754。群落各层片物种多样性以灌木层为最高,呈现灌木>乔木层>草本>藤本的变化趋势,说明贡鸭山的水热资源较为丰富。

The vegetation data of the forest community in Gongyashan, Huaan County,were analyzed for the flora and species diversity.The results showed that vascular plants collected and known in the region are 428 species, 273 genera and 120 families, including 45 species, 33 genera and 22 families of pteridophytes, 7 species,7 genera and 5 families of gymnosperms, 376 species, 233 genera and 93 families of angiosperms.The floristic elements in this region are complex and the retations are extensive,the tropical and ...