中国-喜马拉雅地区热带森林的起源与演化——以艾麻属和钩藤属为例

中国-喜马拉雅地区多达500余个热带成分属，如坡垒属和藤黄属，热带森林植被得到较好地发展，然而本地区热带森林的起源与演化的研究仍鲜有报道，因而本研究十分必要且亟待开展，亦是揭示中国-喜马拉雅植物区系乃至东亚植物区系的起源与进化的关键。本课题以属为基本单元，开展草本或亚灌木代表类群艾麻属（尤其是Laportea s.s.）和藤本代表类群钩藤属的生物地理学研究，进而揭示这两类群的起源地、时间及迁移路线。其次，整合本地区热带森林中前人已开展的其他特征类群的生物地理研究结果并结合地质历史、古植物学等，为系统和深入揭示中国-喜马拉雅地区热带森林的起源与时空演化提供重要的线索。

There are more than 500 tropical component genera in the Sino-Himalayan region, such as Hopea and Garcinia. In this region, the tropical forest vegetation develop well but there are still few reports on the origin and evolution of this vegetation. Therefore, this study is very necessary and needs to be carried out urgently, and it is also the key to reveal the origin and evolution of Sino-Himalayan flora and even East Asian flora. Based on the genus as the basic unit, the biogeography of the representative group of herbs or subshrubs, namely Laportea, especially Laportea s.s., and the representative group of lianas, namely Uncaria, will be carried out, which will reveal the origin and migration routes of these two taxa. What's more, integrating the previous biogeographical results of other characteristic groups in the tropical forests of this area and combining with geology and paleobotany, this project will provide important clues for the origin and evolution of tropical forest in the Sino-Himalayan region.