亚热带植物科学 ›› 2022, Vol. 51 ›› Issue (5): 380-388.DOI: 10.3969/j.issn.1009-7791.2022.05.008

• 植物生态与资源分类 • 上一篇    下一篇

广东河源大桂山野生维管植物区系分析

龚圆辉1,李铨年1,黄久香1*,赵晓勤2,陈晓熹3   

  1. (1. 华南农业大学林学与风景园林学院,广东 广州 510642;2. 东莞市麻涌镇公用事业服务中心,广东 东莞 523000;3. 深圳坤元生态科技有限公司,广东 深圳 518021)
  • 收稿日期:2022-08-29 接受日期:2022-09-30 出版日期:2022-10-15 发布日期:2023-01-17
  • 通讯作者: 黄久香
  • 基金资助:
    广东省林业局项目“广东省级以上自然保护区植被监测样地信息数据整合与建设规划”

Flora of Wild Vascular Plants in Daguishan from Heyuan of Guangdong

GONG Yuan-hui1, LI Quan-nian1, HUANG Jiu-xiang1*, ZHAO Xiao-qin2, CHEN Xiao-xi3   

  1. (1. College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, Guangdong China; 2. Dongguan Machong Town Public Utility Service Center, Dongguan 523000, Guangdong China; 3. Shenzhen Kunyuan Ecological Science and Technology Co., Ltd., Shenzhen, 518021, Guangdong China)
  • Received:2022-08-29 Accepted:2022-09-30 Online:2022-10-15 Published:2023-01-17
  • Contact: HUANG Jiu-xiang

摘要: 通过野外调查、采集标本及文献收集,对广东河源大桂山省级自然保护区的野生维管植物区系进行初步分析。结果表明:(1)该保护区植物资源丰富,共有野生维管植物190科679属1416种。其中,蕨类植物37科64属129种,裸子植物5科5属7种,被子植物148科610属1280种,且种子植物科的组成优势现象明显,属的组成较为分散。(2)该保护区植物区系成分复杂,热带成分占主导地位,在科级水平上,种子植物有8个分布区类型及8个变型,蕨类植物有9个分布区类型;在属级水平上,种子植物有14个分布区类型及15个变型,蕨类植物有9个分布区类型。(3)将大桂山与广东省内3个相邻保护区的植物区系进行比较,河源大桂山的植物区系综合指数最高,种系分化度处于第二位,说明该保护区植物相对丰富,应当给予更严格的保护。

关键词: 大桂山, 植物区系, 野生维管植物

Abstract: According to field investigation, specimens collection and relevant reference, the floristic elements and areal types of families and genera of Daguishan Provincial Nature Reserve located in Heyuan city of Guangdong province were analyzed. The results showed that: (1) There were 1416 wild vascular plant species including varieties and forma, belonging to 679 genera in 190 families. In which there were 129 species of pteridophytes belonging to 64 genera in 37 families, 7 species of gymnosperms belonging to 5 genera in 5 families and 1280 species of angiosperms belonging to 610 genera in 148 families. The dominant phenomenon in family of seed plants was significant, and the composition in genus was highly dispersed. (2) The flora of vascular plants in this reserve was complex, with a predominantly tropical composition. At family level, there were 8 distribution types and 8 variety-types of seed plants. There were 9 distribution types of pteridophytes. At genus level, there were 14 distribution types and 15 variety-types of seed plants. The pteridophytes belonged to 9 distribution types. (3) Comparing the Daguishan Nature Reserve with three neighboring reserves in Guangdong province, the results showed that Heyuan Daguishan had the highest synthetical index of flora and the second highest phylogenetic differentiation, indicating that the plants in this reserve were relatively rich and should be more strictly protected.

Key words: Daguishan, flora, wild vascular plant

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