亚热带植物科学2016，Vol.45Issue(3)：248-254,7.DOI:10.3969/j.issn.1009-7791.2016.03.011
广东阳春百涌自然保护区桫椤科植物资源调查
A Survey on the Cyatheaceae in Baichong Nature Reserve in Yangchun, Guangdong, South China
摘要
Abstract
Baichong Nature Reserve, a mountainous region within Yunkai Mountains, is situated in western Guangdong, China where the scaly tree ferns are very common. However, we do not have a list of species, nor an evaluation of the amount of individuals for each species of Cyatheaceae in the reserve. To know the exact species and the resource amount of them we conducted a detailed survey in Baichong Nature Reserve in April 2016. As a result, four species are detected in the reserve, namely Alsophila spinulosa, Gymnosphaera gigantea, G. metteniana, and G. podophylla. Based on the fact that the tree ferns are restricted to pathways in forest, including the habitats just on and beside the pathways and the valleys distributed along pathways, we develop a new method to calculate the resource amount of each species. The calculating method can be summarized as adding up the number of plants according to the length of forest pathways where tree ferns grow. Based on the calculating method and the data from 10 quadrats and two belt transects, the resource amount of the four species are evaluated as: ca. 900 adult individuals for A. spinulosa, 15 000 for G. gigantea, 320 for G. metteniana, and 4500 for G. podophylla. It proves that Baichong Nature Reserve is one of main conserving places for G. gigantea in southern China.关键词
生物多样性/树蕨/资源量/统计方法Key words
biodiversity/tree fern/resource amount/calculating method分类
农业科技引用本文复制引用
左政裕,吴世远,董仕勇..广东阳春百涌自然保护区桫椤科植物资源调查[J].亚热带植物科学,2016,45(3):248-254,7.基金项目
广东省林业厅广东省野生动植物保护管理项目(20170206) （20170206）
