The oldest tree in the world is the Chinese ginkgo tree. Ginkgo is the oldest relict plant among pure seed plants. Its distribution area is located in the area south of the Huaihe River in my country, including Jiangsu, Hubei, Zhejiang and other places.
1. The oldest tree
The reason why ginkgo is called the oldest tree is because the earliest ginkgo tree appeared on the earth during the Carboniferous period 345 million years ago. Ginkgo is widely distributed in the northern hemisphere, and many of them were distributed in Asia, America and other regions during the Jurassic era. In the late Cretaceous, the earth suddenly cooled due to the influence of the glacial season. Ginkgo trees distributed in Europe and the United States in the northern hemisphere have become extinct. The only remaining ginkgo trees are in Xuzhou, Jiangsu and Yinan, Shandong, China. It is precisely because of China's superior natural conditions that the ginkgo tree has been miraculously preserved.
2. Geographical distribution of ginkgo trees
At present, wild ginkgo remains in various regions of China, including the northern part of Xuzhou, Jiangsu Province, Linyi, Shandong Province, the western mountainous area of ??Zhejiang Province, and Yichang, Hubei Province There are wild and semi-wild ginkgo communities in Wuduhe Town, Anlu City, Dabie Mountain and Shennongjia. At present, wild ginkgo individuals in my country are relatively rare, especially the number of dioecious ones. In addition, the natural regeneration rate is slow, and the remaining remaining forests are about to be replaced.
3. The value of the ginkgo tree
The ginkgo tree is one of the oldest relict plants, and most of its fellow plants are extinct. Because of its rarity, it is known as a "living fossil" and the "giant panda of the plant world". The ginkgo tree is the oldest among trees. Since ginkgo trees can grow for a long time, there is an ancient ginkgo tree in Dinglin Temple in Rizhao City, Shandong Province today. It is said to have a history of more than 4,000 years and was planted in the Shang Dynasty. There is also a ginkgo tree in the Dagushan Temple in Dandong with a history of more than 1,300 years. The ginkgo tree itself has ornamental and medicinal value, and it has a certain supporting role in our exploration of the changes of the century. It is a well-deserved living fossil in the plant world.