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Plant Diversity ›› 1994, Vol. 16 ›› Issue (03): 1-3.

• 研究论文 •    

中国种子植物特有属的生物多样性和特征

王荷生 张镱锂   

  1. 中国科学院、国家计划委员会地理研究所
  • 出版日期:1994-06-25 发布日期:1994-06-25

THE BIO-DIVERSITY AND CHARACTERS OF SPERMA- TOPHYTIC GENERA ENDEMIC TO CHINA

WANG He-Sheng ZHANG Yi-Li   

  1. Institute of Geography, Chinese Academy of Sciences and State Planning Commision
  • Online:1994-06-25 Published:1994-06-25

摘要: 生物多样性是当今世界生物环境研究中的重要课题,植物区系研究可为之做出贡献。本文根据文献和调查资料,运用统计和比较分析法,以属的丰富度和相似性系数为指标,研究全国及各省区中国种子植物特有属的多样性,得出6点结论,找到8个分布多度中心。中国种子植物特有属计有269属,含551种60变种,占全国同类属数8.9%。归78科,以热带科居多,中国特有8科。云南省的丰富度最大,有130属190多种,朝各方向递减,至秦岭一长江下游以北显著降低。陕一甘和浙一赣的相似性系数最高,达80%-90%,南方各省间一般较高至极高(30%-80%),北方各省间一般较低至很低(30%-1%),新疆、海南等与若干省无联系。还说明它们的区系特征及多样性变化的地理原因。为进一步研究中国植物区系和保护物种资源提供了依据。

关键词: 特有属, 生物多样性, 丰富度, 相似性, 多度中心, 中国

Abstract: The bio-diversity of endemic genera may present the endemism in a certain flora and is the foundation of conservation of bio-resources, especially metaplasm resources. Based on Flora of China and her Provinces and fijeld survey, after statistics and analysis, the paper deals with the bio-diversity and characters of genera endemic to China different scale and concludes as follows.

Key words: Endemic genera