龙岩东肖桫椤谷石松类和蕨类植物多样性

Study on the Diversity of Stone Pines and Ferns in the Dongxiao Alsophila Valley of Longyan

在对龙岩市东肖桫椤谷石松类和蕨类植物资源进行野外调查和资料整理的基础上,依据《Flora of China》进行分类鉴定,统计分析该区石松类和蕨类植物资源。结果表明:①该区共有石松类和蕨类植物22科50属95种,优势科为凤尾蕨科(Pteridaceae)、水龙骨科(Polypodiaceae),优势属为凤尾蕨属(Pteris),单种科和寡种科占总科数的68.18%,单种属和寡种属占总属数的94.00%,科属内结构简单,分化程度不高。②陆生石松类和蕨类植物占总种数的53.68%,为主要的生态类型。③观赏石松类和蕨类植物占总种数的68.42%,可为石松类和蕨类植物的园林应用提供大量的资源。

On the basis of field investigation and data collation of stone pine and fern plant resources in Dongxiao Alsophila Valley of Longyan City,the classification and identification of stone pine and fern plant resources in the area were statistically analyzed according to Flora of China.The results showed that:①There were 95 species in 50 genera in 22 families of lycopodium and fern in this area,the dominant families were Pteridaceae and Polypodiaceae,and the dominant genus was Pteris,with monospecies and oligophytes accounting for 68.18%of the total number of families,and monospecies and oligophytes accounting for 94.00%of the total genera number.②Terrestrial stone pines and ferns accounted for 53.68%of the total species,which were the main ecological types.③Ornamental stone pines and ferns accounted for 68.42%of the total number of species,which can provide a lot of resources for the garden application of stone pines and ferns.