井冈山自然保护区蕨类植物资源  

Studied on the pteridophytes resources in Jinggangshan Nature Reserve

作　　者：肖宜安[1] 何平[1] 李晓红[2] 时明芝[3] 胡文海[2] 

机构地区：[1]西南师范大学生命科学学院,重庆400715 [2]井冈山师范学院生命科学系,吉安343009 [3]聊城大学生物系,聊城252059

出　　处：《植物研究》2004年第1期35-40,共6页Bulletin of Botanical Research

基　　金：国家自然科学基金资助项目 (编号 :3 0 0 70 0 80 )

摘　　要：井冈山国家级自然保护区地处江西省中部 ,属罗霄山脉中段。在野外调查和查阅有关资料的基础上 ,对该区蕨类植物资源进行了初步研究。结果表明 :1 )井冈山国家级自然保护区分布有蕨类植物共 44科 ,包括 1 0 1属、30 4种 (含变种和变型 ) ;2 )该保护区中的蕨类植物资源优势科、优势属均表现明显 ,优势科为 :鳞毛蕨科 ,水龙骨科 ,蹄盖蕨科 ,金星蕨科 ;优势属为鳞毛蕨属、铁角蕨属、复叶耳蕨属、凤尾蕨属和耳蕨属 ;3)科的分布区类型只有 7个 ,且均为热带分布型 ,以泛热带分布、热带亚洲至热带非洲间断分布和热带亚洲分布为主 ,它们分别占本区总科数的 66.67%、1 2 .1 2 %和 1 2 .1 2 % ;4)属的地理成分组成复杂 ,具有 1 4个分布区类型 ,其中热带成分占属数的 68.5 4 % ,且以泛热带和热带亚洲分布型属为主 ;温带成分占 2 5 .84% ,且以东亚和北温带分布为主。在中国植物区系的分区上属泛北植物区 ,中国—日本森林植被亚区 ,处于华东植物地区和华南植物地区的过渡区域 ;5 )本蕨类植物区系与庐山、武夷山、天目山等地有密切联系 ,可划为同一自然区 ,均处于上述过渡区域内 ;6)本区的蕨类植物资源具有较高的开发和利用价值 ,可分为指示植物、药用、食用、观赏用。On the basic of field investigations and referring to related data, the flora of pteridophytes in Jinggangshan Nature Reserve was studied in this paper. The results indicate: 1) The pteridophytes species is rich in this Nature Reserve, with 304 species of pteridophytes of 101 genera in 44 families; 2) Results of statistic analysis reveals that, in this flora, the dominant families are these: Dryopteridaceae, Polypodiaceae, Athyriaceae and Thelypteridaceae; The dominant genera are these: Dryopteris, Asplenium, Arachniodes, Peris and Phanerophlebiopsis; 3) The areal-types of family are 7, which are all tropic elements. Among these elements, the pan-tropical ones,tropic-Asia & tropical-African and tropical-Asia ones are the main ones, they each occupy 66.67%、 12.12% and 12.12% of the total families; 4) The flora of genera with compound floristic elements. There are 14 areal-types, among these elements, the tropical ones among which the pan-tropic and tropical-Asia ones are the main ones, occupy 68.54% of the total and the temperate ones whose key elements are the North Temperate and Eastern-Asia ones occupy 25.84%. In terms of the floristic zone, the flora in Jinggangshan is a transitional type between the East-China and South-China areas; 5) The results got through the methods of clustering and PCA between this flora and that in some others indicate: The flora here shows a close relation with those of Lushan, Wuyishan and Tianmushan; 6) The pteridophytes resources in Jinggangshan have upper exploitation and using value. They can be divided to 5 types, including directions plants, medicine plants, edible plants, view and admire plants, and industry plants.

关 键 词：井冈山自然保护区 蕨类植物 植物资源 区系成分 分布区类型 

分 类 号：Q949.36[生物学—植物学]