贵州省岩下大鲵自然保护区苔藓植物区系调查  

A study on the bryoflora on Yanxia Andrias davidianus natural reserve in Guizhou province

作　　者：邓佳佳[1] 熊源新[1] 刘伟才[1] 郎玉卓[1] 季必金[1] 

机构地区：[1]贵州大学生命科学学院,贵州贵阳550025

出　　处：《山地农业生物学报》2008年第2期123-126,133,共5页Journal of Mountain Agriculture and Biology

摘　　要：通过对采自贵州省岩下大鲵自然保护区279份苔藓植物标本整理鉴定,统计出该区共有苔藓植物35科,74属,131种(包括亚种、变种)。其中苔类植物9科,10属,18种;藓类植物26科,64属,113种。其区系基本特征是地理成分多样,区系联系广泛,兼有多种区系成分。该区以东亚分布为主,占总种数的32.8%;温带成分和热带成分所占比例也较高,反映该保护区具有南北过渡的特点;中国特有种比例仅次于东亚成分,占总数的19.3%。优势科分析表明该区苔藓植物以温带性质为主。After having identified 279 bryophytes specimens collected from Yanxia Andrias davidianus nature reserve. Among total 35 families,74 genera, 131 species（ including subspecies and variation） ,for liveworts,there are 18 species, belonging to 10 genera of 9 families,while for mosses,26 families,64 genera and 113 species were identified. The results show that： the geoqraphical elements are varied and widely connected with other geographic elements of the world flora. The E. Asia takes up a predominant pesition（32. 8% ） ;in which the temperate elements and the tropic elements have a high inverse proportion, which shows the transition characteristics from north to south;the account of endemic to China elements is only less than the E. Asia,it occupies 19. 3% of the total. Through the analysis of the predominant families in this area,most of bryophytes are temperate elements.

关 键 词：苔藓植物 区系成分 区系分析 岩下大鲵自然保护区 

分 类 号：Q949.350.8[生物学—植物学]