广东万绿湖湿地维管植物资源调查-亚热带植物科学.PDF

2017,46(1): 48 ～52. Subtropical Plant Science 广东万绿湖湿地维管植物资源调查 林伟通，郑明轩，吴永彬，毛君竹，唐熙媛，李 磊 (华南农业大学林学与风景园林学院，广东 广州 510642) 摘 要：据实地调查，万绿湖共有湿地维管植物 166 种，隶属于 65 科 118 属；莎草科和水龙骨科是主要优势 科，凤尾蕨属为主要优势属。科的地理成分有 7 个分布类型，泛热带分布类型最为丰富；属的地理成分有 12 个分布类型，泛热带分布类型占 45.35% ，并以热带成分为主要成分，其次是温带成分。万绿湖湿地植物科、 属区系具有明显的亚热带性质，反映该湿地植物区系与热带和温带两个地带植物区系的紧密联系。 关键词：湿地植物；区系；亚热带；万绿湖 Doi: 10.3969/j.issn.1009-7791.2017.01.009 中图分类号：Q948.2 文献标识码：A 文章编号：1009-7791(2017)01-0048-05 Vascular Plant Flora of Wetland in Wanlü Lake of Guangdong Province LIN Wei-tong, ZHENG Ming-xuan, WU Yong-bin, MAO Jun-zhu, TANG Xi-yuan, LI Lei (College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, Guangdong China) Abstract: According to field survey, there were 166 species of vascular plants in Wanlü Lake wetland, which were from 118 genera in 65 families. Cyperaceae and Polypodiaceae were dominant families, Pteris was dominant genus. There were 7 geographical distribution forms in vascular plant families, and pantropic was the most abundant type. The geographical elements of all vascular plant genera were consisted of 12 distribution types, and pantropic type was accounted for 45.35%, which tropical elements were dominant, followed by temperate elements. The families and genera of Wanlü Lake wetland plant species had obvious subtropical characters, which reflected the close ties of the wetland flora between tropical and temperate zones. Key words: wetland plant; flora; subtropical; Wanlü Lake 湿地是由陆地与水体综合作用形成的独特生态系统，具有丰富的植物资源，是自然界生物多样性 最丰富的地域之一[1] 。湿地植物是湿地生态系统的重要组成部分，在维持生态环境稳定方面具有不可 [2—5] [6] 替代的作用 ，尤