摘要
对齐云山自然保护区蕨类植物资源进行调查和文献研究,记录该地区蕨类植物40科86属230种.分析表明:(1)该保护区中蕨类植物的优势科、优势属均表现明显,优势科有鳞毛蕨科、金星蕨科、蹄盖蕨科、水龙骨科和凤尾蕨科等,优势属有鳞毛蕨属、凤尾蕨属、卷柏属、铁角蕨属和短肠蕨属等;(2)属的区系地理成分划为4大类,热带分布的属占优势,为总属数的60.5%,世界分布属占20.9%,温带分布属占17.4%,中国特有属占1.2%;(3)种的区系地理成分也可划为4大类,温带分布种(114种)所占的比例最大(49.6%),热带分布种占有较大的比例(30.0%),中国特有种占18.7%,世界分布种占1.7%;(4)在种的相似性上比较,该保护区与井冈山的相似性系数最高(59.7%),而与大瑶山的相似性系数最低(36.7%).
A series of extensive field investigations were carried out in Qiyunshan Nature Reserve from May to July,2007. A total of 230 species were recorded, belonging to 86 genera and 40 families. A detailed floristic analysis showed ： （ 1 ） In this flora, the dominant families consisted of Dryopteridaceae, Thelypteridaceae, Athyriaceae, Polypodiaceae, and Pteridaceae, etc. ; The dominant genera consisted of Dryopteris, Pteris, Selaginella, Asplenium, and Allantodia, etc.. （ 2 ） The percentages of the tropic, cosmopolitan,temperate and endemic to China genera in the flora of Qiyunshan Nature Reserve were 60. 5% , 20.9% , 17.4% and 1.2% , respectively. （3） At species level, the percentages of the temperate, tropic, endemic to China, and cosmopolitan elements in the flora of Qiyunshan Nature Reserve were 49.6%, 30. 0% ,18.7% ,and 1.7%, respectively. （4）Compared with the floras of seven neighboring areas,the phytogeographic relationship of Qiyunshan Nature Reserve＇ s ferns was close to that of Jinggangshan, and obviously distant to that of Dayaoshan.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2010年第2期88-94,共7页
Journal of South China Agricultural University
基金
国家科技基础条件平台工作重点项目(2005DKA21401)
