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徐成东, 陆树刚. 云南哀牢山国家级自然保护区蕨类植物生态地理研究[J]. 植物科学学报, 2007, 25(1): 53-58.
引用本文: 徐成东, 陆树刚. 云南哀牢山国家级自然保护区蕨类植物生态地理研究[J]. 植物科学学报, 2007, 25(1): 53-58.
XU Cheng-Dong, LU Shu-Gang. The Ecological Phytogeography of Pteridophytes in Ailaoshan Mountain National Nature Reserve,Yunnan,China[J]. Plant Science Journal, 2007, 25(1): 53-58.
Citation: XU Cheng-Dong, LU Shu-Gang. The Ecological Phytogeography of Pteridophytes in Ailaoshan Mountain National Nature Reserve,Yunnan,China[J]. Plant Science Journal, 2007, 25(1): 53-58.

云南哀牢山国家级自然保护区蕨类植物生态地理研究

The Ecological Phytogeography of Pteridophytes in Ailaoshan Mountain National Nature Reserve,Yunnan,China

  • 摘要: 报道了哀牢山国家级自然保护区蕨类区系有蕨类植物48科、118属、446种(包括变种和变型)。从蕨类植物的垂直分布、东西分布和生态类型的划分等几个方面对哀牢山国家级自然保护区蕨类植物生态进行探讨并得出以下结论:(1)在海拔分布上,蕨类植物有着与不同植被相关的生态适应性,2000~2800 m的中山湿性常绿阔叶林和山顶苔藓矮林地带蕨类植物种类最为丰富,附生蕨类植物占到了该海拔地带蕨类植物总种数的28.5%;(2)东坡有蕨类植物387种,西坡则只有355种,东西坡共有种达295种;(3)哀牢山国家级自然保护区蕨类植物可划分为16个生态类型,本区明显地以阴生植物、亚高温植物和中生植物居多,附生植物种类所占比例大,旱生植物和石生植物种类少等为主要生态特征。哀牢山国家级自然保护区蕨类植物的温度生态类型以亚热带植物种类为主,温带植物和寒温带植物少。

     

    Abstract: The floristic phytogeography of pteridophytes of 446 species(including varieties and forms) and 118 genera in 48 families were recorded from this region up to now.This paper discussed the pteridophytic ecology of Ailaoshan Mountain National Nature Reserve from uprightness distribution,east and west distribution and ecological types,and the conclusions were as follows:(1)The pteridophytic ecological types are affinitive with different vegetations.There are the most abundant peteridopytes in vegetations of the wet evergreen broad-leaved forest on upper slopes and the mossy dwarf forest on mountain tops among 2000-2800 m,furthermore,the epiphytes accounted for 28.5% in total species of this area.(2)There are 387 and 355 species of pteridophytes from east and west slope,moreover,295 are mutual species between two slopes;(3)The pteridophytic ecological types from Ailaoshan Mountain National Nature Reserve can be divided into 16 types according to the effects of ecological factors.The ecological features are characterized by:diversified ecological types,rich species of sciophytes,submegatherms and mesophytes,high proportions species of epiphytes,lower proportions species of mesotherms and submesotherms,xerophytes and lithophytes.

     

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