生物多样性 ›› 2019, Vol. 27 ›› Issue (9): 1016-1020.DOI: 10.17520/biods.2019159

• 生物编目 • 上一篇    下一篇

极小种群广东含笑野外资源现状

杨蕾蕾1,#,王文广1,2,#,郎校安1,张苏州1,姚张秀1,2,徐婷1,李远球3,严丹峰4,杨建芬1,王亚玲5,张寿洲1,*()   

  1. 1 深圳市中国科学院仙湖植物园南亚热带植物多样性重点实验室, 广东深圳 518004
    2 华南农业大学亚热带农业生物资源保护与利用国家重点实验室, 广州 510642
    3 广东石门台国家级自然保护区管理局, 广东英德 513000
    4 棕榈生态城镇发展股份有限公司, 广州 510627
    5 西安植物园, 西安 710061
  • 收稿日期:2019-05-20 接受日期:2019-07-02 出版日期:2019-09-20 发布日期:2019-09-25
  • 通讯作者: 杨蕾蕾,王文广,张寿洲
  • 基金资助:
    国家林业局林业公益性行业科研专项(201504322);国家林业局林业公益性行业科研专项(201504322)

Resource status of Michelia guangdongensis (Magnoliaceae), a wild plant species with extremely small populations

Leilei Yang1,#,Wenguang Wang1,2,#,Xiaoan Lang1,Suzhou Zhang1,Zhangxiu Yao1,2,Ting Xu1,Yuanqiu Li3,Danfeng Yan4,Jianfen Yang1,Yaling Wang5,Shouzhou Zhang1,*()   

  1. 1 Shenzhen Key Laboratory of Southern Subtropical Plant Diversity, Fairylake Botanical Garden, Shenzhen and Chinese Academy of Sciences, Shenzhen, Guangdong 518004
    2 State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642
    3 Administration Bureau of Shimentai National Nature Reserve, Yingde, Guangdong 513000
    4 Palm Eco-town Development Co., Ltd., Guangzhou 510627
    5 Xi’an Botanical Garden, Xi’an 710061
  • Received:2019-05-20 Accepted:2019-07-02 Online:2019-09-20 Published:2019-09-25
  • Contact: Leilei Yang,Wenguang Wang,Shouzhou Zhang

摘要:

为掌握极小种群广东含笑(Michelia guangdongensis)的种质资源现状并评估其濒危等级, 本文对广东含笑原生地——广东石门台国家级自然保护区及其邻近地区进行了系统的野外调查。结果表明: (1)目前发现广东含笑有4个野外分布区, 其中广东石门台国家级自然保护区红珠岩段和英德上天堂为首次报道。(2)船底顶是广东含笑最集中的分布区, 种群数量最多, 约有1,100株; 英德上天堂种群数量最少, 只有20株。(3)依据IUCN全球物种濒危等级评估标准, 广东含笑应当被评为濒危(EN, B1a + B2a)。

关键词: 极小种群, 广东含笑, 野外调查, 濒危等级, 种质资源, IUCN

Abstract:

To clarify the current status of Michelia guangdongensis germplasm resources and evaluate its endangerment category, a field investigation was conducted in Guangdong Shimentai National Nature Reserve and its adjacent regions. The results are as followings: (1) We found a total of four wild distribution areas for Michelia guangdongensis, with two (Guangdong Shimentai National Nature Reserve and Shangtiantang, Yingde) of first reports. (2) Chuandiding harbors the largest population with 1,100 individuals, whereas Shangtiantang, Yingde, the smallest, with only about 20 individuals. (3) According to the IUCN Global Species Threat Assessment Standard, Michelia guangdongensis was rated as Endangered (EN, B1a + B2a).

Key words: extremely small populations, Michelia guangdongensis, field investigation, endangered category, germplasm resources, IUCN