论文部分内容阅读
银杏又叫白果,是裸子植物银杏科中独一无二的树种,也是地球上现存的最古老的植物“活化石”之一。两亿年前,银杏的祖先分布在地球上的大部分地区,由于地壳和气候的突变,特别是第四纪冰川以后,它在世界各地先后绝迹,唯独在我国和日本幸存。
Ginkgo biloba, also known as ginkgo, is a unique tree species in the gymnosperm ginkgo family and one of the oldest surviving plants on earth. Two hundred million years ago, the ancestors of Gingko distributed in most parts of the earth. Due to the sudden changes in the earth’s crust and climate, especially after the Quaternary glaciers, it has disappeared one after another in the world, only in China and Japan.