摘要
[目的]明确雷公山国家级自然保护区常绿阔叶林蕨类植物群落组成。[方法]调查16个20 m×20 m样地256个5 m×5 m小样方以及每个样地各边分别外延20 m范围出现的蕨类植物种类。[结果]调查样地中有蕨类植物64种,隶属于28个科39个属,物种种类丰富,种群数量极不均匀(相对多度在2以下占78.13%)。其中地生种所占比例占主导地位(96%),附生种极少(4%),表现为东南亚热带北缘植物区系的性质或特点,并有热带山地向亚热带过渡的特征;里白、芒萁、狗脊蕨、蕨4个种是该区高密度的种类,其他绝大多数种类的密度较低。[结论]研究结果为进一步阐明雷公山常绿阔叶林蕨类植物的组成特征及其生态学提供了理论依据。
[Objective] To find the fern community of evergreen broad-leaved forest in Leigongshan Natural Nature Reserve. [Method] We researched the ferns in 16 of 20 m × 20 m sample plots and 256 of 5 m × 5 m quadrats and the areas within 20 m. [Result] There were 64 ferns in sample plot,belonging to 39 genus and 28 families. The species were abundant and population quantity was greatly uneven. Among them,geobiotic species played a dominant role（ 96%）,while epiphytic species were relatively less（ 4%）,showing the characters of north rim flora of southeast subtropics,and with the transition from tropical mountains to the subtropical areas. Diplopterygium glaucum,Dicranopteris pedata,Pteridium aquilinum and Woodwardia japonica were species with high density. And most other species had relatively low density.[Conclusion]This research provides theoretical foundation for the composing features and ecology of evergreen broad-leaved forest in Leigongshan Natural Nature Reserve.
出处
《安徽农业科学》
CAS
2016年第9期5-7,15,共4页
Journal of Anhui Agricultural Sciences
基金
贵州雷公山国家级自然保护区管理局局长科研基金项目[雷公保科合字(2014)03号]
关键词
雷公山国家级自然保护区
常绿阔叶林
蕨类植物
生态特征
Leigongshan Natural Nature Reserve
Evergreen broad-leaved forest
Fern
Ecological characteristics
