[an error occurred while processing this directive]

Plant Diversity ›› 2015, Vol. 37 ›› Issue (06): 713-720.DOI: 10.7677/ynzwyj201515050

• 研究论文 • 上一篇    下一篇

浙江南麂岛陆生维管束植物多样性及区系特征

 朱弘1, 库伟鹏1, 戎建涛2, 项佳娥3   

  1. 1 浙江农林大学 林业与生物技术学院，浙江 临安311300；2 温州市农业科学研究院，浙江 温州325006；
    3 浙江农林大学 环境与资源学院，浙江 临安311300
  • 收稿日期:2015-03-25 出版日期:2015-11-25 发布日期:2015-04-17
  • 基金资助:

    南麂海洋站建设项目对浙江南麂列岛国家级海洋自然保护区生态影响 （2014720），温州市低碳发展战略研究项目 (温发改环资 ［2013］ 256号)

Species Diversity and Floristic Characteristics of Vascular Plants in Nanji Island, Zhejiang Provience

 ZHU  Hong-1, KU  Wei-Peng-1, RENG  Jian-Tao-2, XIANG  Jia-E-3   

  1. 1 School of Forestry and Biotechnology, Zhejiang A & F University, Lin’an, Zhejiang 311300, China; 2 Whenzhou Academy of
    Agricultural Sciences, Wenzhou, Zhejiang 325006, China; 3 School of Environmental and Resource Science,
    Zhejiang A & F University, Lin’an, Zhejiang 311300, China
  • Received:2015-03-25 Online:2015-11-25 Published:2015-04-17
  • Supported by:

    南麂海洋站建设项目对浙江南麂列岛国家级海洋自然保护区生态影响 （2014720），温州市低碳发展战略研究项目 (温发改环资 ［2013］ 256号)

PDF (PC)

1424

摘要：

浙江南麂岛为南麂列岛国家级海洋自然保护区主岛，共有维管束植物97科267属393种 （包含种下分类等级）；扣除栽培种和逸生种，则南麂岛野生维管束植物尚有81科210属304种；分析表明：从科的层面看，蕨类植物的最大科为凤尾蕨科 （Pteridaceae）、金星蕨科 （Thelypteridaceae）、海金沙科 （Lygodiaceae）、鳞毛蕨科 （Dryopteridaceae）；种子植物的最大科多为世界广布类型，小科占据了比例和数量上的优势，其中百合科 （Liliaceae）、石蒜科 （Amaryllidaceae）、荨麻科 （Urticaceae）、马鞭草科 （Verbenaceae） 等因具有较高的VFICS/WFIW比值而构成南麂岛区系表征科；从属的层面看，区系主体由泛热带分布 （3810%）、北温带分布 （1630%） 和东亚分布 （1131%） 3大类型构成，其中热带性质分布属共102属，占非世界分布总属数的6072%，温带性质分布属共66属，占3928%；进一步通过聚类分析和计算R/T比值比较与其余6个参照地区的联系，表明南麂岛与浙江乌岩岭在区系成分关系上最为接近；从种的层面看，可将南麂岛野生种子植物划分为7个亚型，以长江流域及其以南分布亚型 （5390%） 为南麂主要来源，华南分布亚型 （2078%） 次之。南麂岛具有鲜明的华东区系的南北过渡特征且更具热带亲缘性质，区系划分应处于华东区系的南缘。

关键词: 南麂岛, 植物区系, 表征科, 聚类分析, 分界线

Abstract:

A total of 393 species (subtype included) in 267 genera, 97 families were reported in Nanji Island, the main island of Nanji Islands National Nature Reserve. After eliminating all the cultivated and invasive species, there were still 304 species in 210 genera and 81 families belonging to wild vascular plants; To better understand the floristic characteristics of Nanji, we applied analysis in 3 levels: At familylevel, the largest families in pteridophyte were ranked as Pteridaceae、Thelypteridaceae、Lygodiaceae、Dryopteridaceae; In seed plants, almost the largest ones were Cosmopolitan, while the small ones dominented the most, quantitatively and proportionately; The characteristic families of seed flora were consisted of Liliaceae、Amaryllidaceae、Urticaceae、Verbenaceae, cause they got high ratio of VFICS/WFIW; At genuslevel, the Pantropical Distribution (3810%)、the North Temperate Distribution (1630%) and the East Asia distribution (1131%) formed the main part of seed flora; The proportion of the category of temperate distribution and tropical distribution was 6072% and 3928% respectively; Took 6 other sites as reference, through cluster analysis and R/T ratio comparisons, It was proved that Nanji Island were most similar to that of Wuyanling of Zhejiang Provience but showed more tropical affinities; At specieslevel, wild seed plants can also be divided into 9 areal subtypes, The Yangtze River & Southern Proviences subtype dominented at 5390%, following by South China subtype at 2078%. The results showed that Nanji Island had a distinctive transitional characteristics of flora from north to south China with more tropical biological properties, thus the floristic division of Nanji should on the southern margin area of east China.

Key words: Nanji Island, Plant flora, Characteristic families, Cluster analysis, Dividing line

中图分类号: 

Copyright © Plant Diversity, All Rights Reserved.
Powered by Beijing Magtech Co. Ltd