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银杏是现代植物界中古老而又珍贵的活化石之一。考其身世,可谓饱经沧桑。记录在地质和化石的“档案”资料告诉我们,它的老祖宗在距今一亿多年前就已出现。那时地球上气候温暖潮湿,银杏处于兴旺发达的“黄金时代”。遗憾的是,到了距今二百万年前,地球上气候骤然变冷,绝大多数银杏被冰川摧毁冻死,只有生活在我国的一部分幸运地活了下来。银杏作为观赏植物,是因其具有一副不俗的“仪表”。它整洁挺拔,枝条密生,树冠广阔,姿态雄伟。它那鸭蹼形的叶子更加奇异秀丽,春天苍劲葱郁,仲夏巨影婆娑,金秋则满树金黄。因而,银杏是一种优良的观赏树种。银杏的果实有杏子大小,外观黄澄澄的,十分可爱。不过,这种貌
Ginkgo is one of the oldest and precious living fossils in modern plant kingdom. Test its lifetime, can be described as full of vicissitudes. Archives recorded in geology and fossils tell us that their ancestors appeared more than 100 million years ago. At that time, the climate on earth was warm and humid, and the ginkgo was in a prosperous “golden age.” Sadly, two million years ago, the weather on Earth suddenly cooled down. Most of the ginkgo trees were destroyed by glaciers and froze to death. Only part of life living in our country was fortunate enough to survive. Ginkgo as ornamental plants, because it has a decent “instrument.” It is neat and tidy, branches dense, broad canopy, majestic attitude. Its duckweed-shaped leaves are more exotic and beautiful, spring is vigorous and lush, with midsummer ghost shadows and golden autumn trees. Therefore, ginkgo is an excellent ornamental tree species. Ginkgo fruit apricot size, the appearance of yellow, very cute. However, this appearance