Ginkgo tree, also known as ginkgo tree, was called duck foot tree or gongsun tree in ancient times. It is one of the most precious tree species in the world and the only remaining ancient ginkgo plant species on the earth. Therefore, botanists regard it as a "living fossil" in the plant kingdom, and it is also known as the four major garden trees in the world with cedar, Aralia elata and Pinus yunnanensis. Gardeners in China often compare Ginkgo biloba with peony and orchid, regard it as the "three treasures of gardens" and respect it as the national tree.
Ginkgo tree is a tall deciduous tree with tall trunk, beautiful tree shape, strong disease resistance and pollution resistance, and its life span is as long as thousands of years. It is loved and favored by the world with its strong physique, unique personality, unique character, high ornamental value and economic value. Wang Wei, a famous poet in the Tang Dynasty, once wrote a poem: "Ginkgo is planted as a beam and citronella is a knot. I don't know the clouds in the building, but I will be the rain on earth." Su Dongpo, a great poet in the Song Dynasty, has a poem praising: "The four-walled peak mountain is picturesque everywhere. A tree is towering, a little article circle. " Ginkgo tree not only has high ornamental value because of its beautiful and exquisite leaves.
Value, and she has strong adaptability, great medicinal effect and considerable economic value. Ginkgo biloba, the fruit of ginkgo tree, is sweet in taste and homologous in medicine and food. After processing, it can be made into various flavor drinks with bright color, strong smell, sweet and delicious and health food suitable for all ages. The roots, leaves and skins of Ginkgo biloba also contain a variety of medicinal components, which have high clinical application value.
Ginkgo tree has a history of thousands of years in Dandong. According to textual research, a ginkgo tree in Dagushan Temple in Dandong is over 1300 years old and its height is 35. Its trunk can only be held by three adults with open arms. In summer, people look up under the tree, but they can't see the sky during the day and the stars at night. When leaves fall in autumn, there can be a foot-thick Huang Cancan leaf under the tree, and its fruit reaches hundreds of kilograms every year. In the streets and parks of Dandong city, there are quite a number of ginkgo trees with the age of 300-500 years, and almost all the main streets in the city are covered by ginkgo trees with the age of 100 years. According to statistics, there are nearly 1,000 ginkgo trees over 80 years and more than 4,000 over 30 years in the city. At present, the city's ginkgo seedling land 1000 mu, seedlings1500 thousand plants.
The people of Dandong love ginkgo trees, which have been carefully planted and protected for many years, making ginkgo trees thrive and develop rapidly in this fertile soil of Dandong. 1March, 984, the ginkgo tree was officially named Dandong City Tree after deliberation and approval by the Second Session of the Ninth People's Congress of Dandong City.
dawn redwood
Latin scientific name: Meta Sequoia glyptostroboides Hu&; succeed
Protection level: national first-class protected plants
Distribution: Metasequoia glyptostroboides is a rare and unique tree species in China, which is native to Sichuan, Hubei, Hunan and other places and has been widely cultivated since it was named 1948. North to Yan 'an, Beijing and southern Liaoning, south to Guangzhou, east to the coast and west to Chengdu. About 52 countries and regions abroad have introduced and cultivated them.
Brief introduction: Metasequoia glyptostroboides, a tall deciduous tree, belongs to a genus and an ancient tree species left over from the Quaternary glacial movement.
Leaves, feathers and interactive pairs generate two columns. Monoecious. Metasequoia glyptostroboides has thin leaves and calm wind in summer, which is suitable for enjoying the cool. In autumn, the crown leaves are brick red, which is very ornamental. At present, there are more than 20 provinces and cities in China for greening and beautifying. In front of Lamarck Hall of Beijing Zoo, there are three trees with the earliest introduction and the age of 58 years, which have become another leaf viewing landscape in Beijing in autumn. The "city tree" in Pizhou City, Jiangsu Province is Metasequoia glyptostroboides, and the 80-mile Metasequoia forest belt on Picang Road is praised as "the first Metasequoia Road in the world" at home and abroad. Wood is light and soft, and can be used for building and papermaking.