CAJ | 학술논문

为掌握印江洋溪自然保护区的石松类及蕨类植物的资源情况,通过野外调查,查阅文献资料和分析.得出以下结论:印江洋溪自然保护区石松类及蕨类植物共20 科56 属126 种(含种以下分类单位) ,其中以铁角蕨属、凤尾蕨属、耳蕨属等为主.保护区石松类及蕨类植物区系成分复杂,区内温带种占绝对优势,占总种数的65.08%,具有温带性质.其中东亚分布57种,占总种数的45.24%,属于东亚植物区系.热带成分种共有39种,世界广布种共有5种,说明该地区植物与热带、亚热带有一定的联系;同时有22种中国特有成分分布说明该地区具有地域特殊性.与贵州大部分地区处在植物分布区的过渡地段上一样,比较多的属(51.76%)在这里只有1种分布,具有其过渡性质.
위장악인강양계자연보호구적석송류급궐류식물적자원정황,통과야외조사,사열문헌자료화분석.득출이하결론:인강양계자연보호구석송류급궐류식물공20 과56 속126 충(함충이하분류단위) ,기중이철각궐속、봉미궐속、이궐속등위주.보호구석송류급궐류식물구계성분복잡,구내온대충점절대우세,점총충수적65.08%,구유온대성질.기중동아분포57충,점총충수적45.24%,속우동아식물구계.열대성분충공유39충,세계엄포충공유5충,설명해지구식물여열대、아열대유일정적련계;동시유22충중국특유성분분포설명해지구구유지역특수성.여귀주대부분지구처재식물분포구적과도지단상일양,비교다적속(51.76%)재저리지유1충분포,구유기과도성질.
The floristic composition and geographic feature of Lycophytes and Ferns in Yangxi Nature Reserve were analyzed based on field investigation and data collection ,with the main objective was to identify the fern resources of this region. Results were as follows;20 families including 56 generas and 126 species (including the subspecies) were distributed in the region of Yangxi, most of them were Asplenium, Pteris or Polysti-chum;The type of pteridoflora was complicated. In this area, the pteridophyte which accounting for 65. 08%in the total species had significant temperate property, the temperate species occupied an absolute advantage. Among them, 57species were the East-Asia species, accounting for 45. 24%, it reflected that the pterido-phyte in Yangxi Nuture Reserve belonged to the East-Asia distribution. Besides, there have39 species of tropical distribution and 5 species of cosmopolitans, indicating that pteridophyte in this area had close rela-tionship with tropical distribution Otherwise, 22 species of China unique flora showed that the region had a regional particularity;As the same as the most areas in Guizhou province, Yangxi Nature Reserve located in transition section, a large part of genera(51. 76%) contained only one species, suggesting that the pterido-phyte in this area had transitivity.