濒危物种杏黄兜兰分布区种子植物区系分析  

Spermatophyte flora in the distribution area of an endangered species Paphiopedium armeniacum

作　　者：王祥福[1] 池秀莲[2] 董莉莉[3] 郭泉水[4] 

机构地区：[1]国家林业局西北林业调查规划设计院,陕西西安710048 [2]北京大学,北京100091 [3]辽宁省林业科学研究院,辽宁沈阳110032 [4]中国林业科学研究院森林生态环境与保护研究所,国家林业局森林生态环境重点实验室,北京100091

出　　处：《辽宁林业科技》2013年第5期9-15,共7页Liaoning Forestry Science and Technology

基　　金：国家林业局野生动植物保护司专项"崖柏植物资源及扩繁技术的研究"(2005)

摘　　要：在云南省泸水县杏黄兜兰分布区进行种子植物区系成分调查,并以此为基础,研究杏黄兜兰分布区种子植物区系组成及其特征,结果表明:在调查区域内,共有种子植物38科68属78种;其中以兰科和壳斗科植物种数最多(7种),分别占该分布区种子植物总种数的8.97%,其次为菊科(6.41%)。群落中单种科、寡种科、单种属及寡种属占有很高的比例。杏黄兜兰分布区内植物区系的地理成分复杂;各类热带分布区类型属的数量占调查区域内总属数的33.82%,各类温带分布类型属的数量占调查区域内总属数的52.94%,表明杏黄兜兰分布区内的种子植物区系具有明显的热带向温带过渡的性质;世界广布、东亚(热带、亚热带)及热带南美间断分布、北温带广布对杏黄兜兰群落种子植物区系性质影响极大。The spermatophyte flora＇ s composition and characteristic was studied from distribution area of Paphiopedium armeniacum in Lushui County of Yurman Province by investigating the plants in typical places. The results showed that there were 78 species of seed plants belonging to 38 genera and 68 families. The major families were Orchidaceae and Fagaceae （contained 7 species）, occupy ing 8.97% of the total species. The next important families were Ericaceae and Compositae （6.41%）. The rote of the single-species families, the monotypic families, the single-genera and the monotypic genera was very high. The geography ingredient of the sper- matophyte flora in P. amzetdaeum community was complex. The genera of lropical distribution made up 33.82% of the total genus and the genera of temperate distribution contributed 52.94%, which indicated the spermatophyte flora in the distribution area of P. ar mem2wum had the obvious transition from tropical zone to temperate zone. And the result of flora index showed that the types of Wide Spread, East Asian （Tropical and Subtropical） and Tropical South Africa Disjtmcted, and North Temperate distributions extremely in fluenced the characteristic ofP. armeniacum community.

关 键 词：杏黄兜兰 种子植物区系 区系指数 云南省泸水县 

分 类 号：S717[农业科学—林学]