探讨海南岛生物地理起源上有意义的一些种子植物科和属  

Families and genera of seed plants in relation to biogeographical origin on Hainan Island

作　　者：朱华[1] 

机构地区：[1]中国科学院西双版纳热带植物园综合保护中心,云南勐腊666303

出　　处：《生物多样性》2017年第8期816-822,共7页Biodiversity Science

基　　金：国家自然科学基金(41471051;31170195;41071040)

摘　　要：海南岛在始新世时可能连接着越南北部和广西,后来随着喜马拉雅的隆升及印度支那地质板块向东南的逃逸,发生了向东南的移动和旋转,最终到达了现在的位置。目前这一观点已被正式提出。为进一步探讨该观点,本文列举了海南岛植物5科36属的分布情况。这些类群均显示了云南南部及东南部、广西西南部和海南的分布格局,并包括了乔木、灌木、藤本、草本各生活型,广泛存在于这些地区的热带植被中。这种分布格局的形成最好的解释就是广西西南部、海南和越南北部曾存在可能的陆地连接。这些科属非常值得进行深入的分子生物地理、亲缘地理及遗传多样性等方面的研究,期望这些具有特别地理意义的海南植物科和属的信息能为探讨海南岛的起源提供依据。The theory that Hainan Island could have been in contact with northern Vietnam and Guangxi during the Eocene and drifted to its present location by moving southeast with the uplift of the Himalayas and extrusion of the Indochina block was recently suggested. To further discuss the biogeographical origin of Hainan Island, 5 families and 36 genera of seed plants on the island were examined in this paper. These families and genera have species that show a distribution pattern of southern and southeastern Yunnan, southwestern Guangxi, and Hainan in China. Life forms of these taxa include trees, shrubs, lianas and herbs, which are present in various tropical forests in these regions. The logical and reasonable explanation for the distribution pattern is that Hainan Island could have been in contact with northern Vietnam and Guangxi. This paper presents information on these families and genera of biogeographical importance, specifically in relation to the origin of Hainan Island for further studies on molecular biogeography, phylogeography and genetic diversity.

关 键 词：种子植物 分布 生物地理起源 海南岛 

分 类 号：Q949[生物学—植物学]