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Plant Diversity ›› 1995, Vol. 17 ›› Issue (02): 1-3.

• 研究论文 •    

华西南干热河谷种子植物区系的特征、性质和起源

金振洲 杨永平 陶国达   

  1. 云南大学生态地植物研究所
  • 出版日期:1995-04-25 发布日期:1995-04-25

THE FLORISTIC CHARACTERISTICS, NATURE AND ORIGIN OF SEED PLANTS IN THE DRY-HOT RIVER VALLEY OF SW CHINA

JIN Zhen-Zhou YANG Yong-Ping TAO Guo-Da   

  1. Institute of Ecology and Geobotany, Yunnan University
  • Online:1995-04-25 Published:1995-04-25

摘要: 华西南干热河谷种子植物的区系特征表现为其植物科、属、种各级分布区类型的多样性,明显的特有现象和丰富的标志种。根据本地区的区系成分分析,可以得出以下有关区系性质和起源的结论:(1)总体上看干热河谷种子植物区系属于亚热带性质;(2)本地区一些半稀树草原和马基状灌丛的区系成分类似于热带非洲、热带亚洲和地中海地区相同植被的成分;(3)许多植物科和属为古热带成分,起源于古南大陆;(4)少数残遗种或其后裔可追溯到它们的古地中海起源,特别是古南大陆起源,这对说明所研究地区的植物区系起源是很重要的资料。

关键词: 华西南, 干热河谷, 种子植物区系

Abstract: The floristic characteristics of seed plants in the dry-hot river valley of SW China are (1) diversity in areal-types of plant families, genera and species, (2)striking appearance in endemism and abundance in characteristic species. Based on the analysis of the floristic elements in this area, some conclusions on the nature and origin have been drawn as following: (1) The flo-ra of seed plants in dry-hot river valleys is subtropical nature as a whole; (2) Some floristic ele-ments of the semi-savanna and maquis-like scrub in this area are similar to the Tropical Africa, Tropical Asia and Mediterranea region in their corresponding vegetations; (3) Many plant fami-lies and genera are ancient tropical elements with the origin from Gondwanaland.

Key words: SW China