【摘要】 台湾原为大陆的一部分，以后由于断陷而形成台湾海峡。台湾海峡两岸植物区系关系密切，植物区系相互迁移分布，闽台陆桥是台湾海峡最浅的部分，在更新世冰期，由于海退，陆桥曾４次较长时间露出水面，成为台湾海峡两岸植物区系迁移分布的通道，使得两岸植物的迁移分布得以进行。更多还原

【Abstract】 Taiwan is a part of the mainland of China. The Taiwan strait was formed as a result of faulting activity.The floras have closing relationship in both sides of the Taiwan strait with the mutual migration and distribution。Fujian- Taiwan land bridge is a part of the most shallow in the Taiwan strait.It was revealed on the sea surface for four times that is due to the regression in Pleistoeene glacial epoch,therefore Fujian-Taiwan land bridge turned into passageway of the flo-ras migration on both sides of the Taiwan strait in Pleistoeene Epoch.更多还原