广东南澳岛苔藓植物物种组成及区系成分分析  

Studies on the flora of bryophytes in Nan’ao Island,Guangdong province

作　　者：王琪 卓步胜 李丹丹[1] 于晶[1] WANG Qi;ZHUO Busheng;LI Dandan;YU Jing(College of Life Sciences,Shanghai Normal University,Shanghai 200234,China)

机构地区：[1]上海师范大学生命科学学院,上海200234

出　　处：《上海师范大学学报（自然科学版）》2020年第6期622-629,共8页Journal of Shanghai Normal University(Natural Sciences)

基　　金：国家自然科学基金(31570208);上海植物种质资源工程技术研究中心项目(17DZ2252700)。

摘　　要：通过对广东省南澳岛苔藓植物的采集,以及对702份标本的鉴定,首次报道了南澳岛苔藓植物的物种组成和地理区系成分特点。经研究发现:1)南澳岛共有苔藓植物108种,其中苔类13科15属16种,藓类21科40属92种;2)南澳岛苔藓植物丛藓科为第一大科,含7属16种;3)泛热带(总种数占比20.37%)、东亚(18.52%)、北温带(16.67%)为南澳岛苔藓植物三大区系成分;4)南澳岛藓类植物物种组成和区系成分大体符合岭南地区热带特征,也与人为干扰强烈的地区有一定程度的相似之处;5)南澳岛苔藓植物主要的生境类型为石生、土生、石面薄土,分别占比31.59%,22.27%,16.93%;6)南澳岛苔藓植物样地群落多受基质、海拔、湿度、郁闭度的共同影响,其中海拔、湿度影响较大;7)南澳岛苔藓植物物种组成与周围岛屿相似度不高,可能是受水体隔离影响较大所导致的。Based on identification of collections of 702 bryophyte samples,bryological composition and floristic characteristics in Nan’ao Island of Guangdong province were analyzed.The results showed that:1)A total of 108 bryophyte species in Nan’ao Island were reported,including liverworts 16 species belonging to 13 families and 15 genera,and 92 species of mosses belonging to 21 families and 40 genera;2)Pottiaceae is the largest family,which contains 7 genera and 16 species;3)Pantropical element(accounted for 20.37%of the total species),East Asia element(18.52%)and North Temperate element(16.67%)are three main floristic elements of bryophytes in Nan’ao Island;4)The species composition and floristic composition of mosses in Nan’ao Island generally conform to the tropical characteristics of Lingnan area,and also have some similarities with areas,which suffer from strong human disturbance;5)Rocks(31.59%of the total samples),soil(22.27%)and thin soil with stone surface(16.93%)are three main ecological distribution types of bryophytes in Nan’ao Island;6)The community of bryophytes in Nan’ao Island is mostly affected by substrate,altitude,humidity and canopy density,among which altitude and humidity rank the top;7)The species composition of bryophytes in Nan’ao Island is not similar to the surrounding islands,which may be caused by the great influence of water isolation.

关 键 词：苔藓植物 区系 南澳岛 

分 类 号：Q949[生物学—植物学]