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植物研究 ›› 2005, Vol. 25 ›› Issue (4): 495-502.doi: 10.7525/j.issn.1673-5102.2005.04.023

• 论文 • 上一篇    下一篇

广东省乳源县种子植物区系的研究

段代祥, 赵南先, 叶华谷, 陈贻竹   

  1. 中国科学院华南植物园, 广州 510650
  • 收稿日期:2004-01-07 出版日期:2005-12-15 发布日期:2016-06-14
  • 作者简介:段代祥(1977-),男,硕士研究生,主要从事植物地理学方面的研究。
  • 基金资助:
    中国科学院知识创新工程项目(KSCX2-SW-105)

A study on the flora of seed plants in Ruyuan county region of Guangdong Province

DUAN Dai-Xiang, ZHAO Nan-Xian, YE Hua-Gu, CHEN Yi-Zhu   

  1. South China Botanical Garden, the Chinese Academy of Science, Guangzhou 510650
  • Received:2004-01-07 Online:2005-12-15 Published:2016-06-14

摘要: 乳源县位于广东省北部,地理位置约为东经112°52'~113°29',北纬24°28'~25°06'之间。根据统计和调查,乳源县有野生种子植物171科, 753属, 1910种。科、属、种的地理成分分析结果显示:科以泛热带成分为主(占57.14%),其中科的热带性成分占68.57%;属以泛热带分布最多(21.26%),其中属热带性成分占58.19%的;种以中国特有种最多(占53.53%),而种的热带性成分占29.25%。该区系的优势科主要有猕猴桃科、木通科、安息香科、山茱萸科、茜草科、金缕梅科、山茶科等,它们大多为热带和亚热带分布科。与邻近地区比较,与乐昌植物区系的联系最高,其次是车八岭和武夷山,黑石顶和广西大瑶山低一些,神农架最低。

关键词: 乳源县, 种子植物, 植物区系

Abstract: Ruyuan County islocated in north of Guangdong Province, at 24°28'~25°06'N.and 112°52'~113°29'E.According to our investigations and statistics, there are 1 910 species of wild seed plants which belong to 753 genera and 171 families in Ruyuan County.Based on their geographical distribution, 171 families are classified into 11 areal-types, among them Pan-tropical element is dominant(57.14%), and the tropical elements make up(68.57%).753 genera are classified into 15 areal-types, among them Pan-tropical element is dominant(21.26%), and the tropical elements make up 58.19%.1 910 species are classified into 15 areal-types, among them endemic to China element is dominant(53.53%), and the tropical elements make up(29.25%).The dominant families in this area are Actinidiaceae, Lardizabalaceae, Styracaceae, Cornaceae, Rubiaceae, Hamamelidaceae, Theaceae, etc.Most of them are tropical and subtropical families.Comparing the Composition of the flora with those of 4 neighbouring regions, the flora of Ruyuan is quite similar to those of Lechang.

Key words: Ruyuan County, Seed plants, Flora