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.
Second, the ornamental value of ginkgo 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. "
Third, the economic value of ginkgo tree:
Ginkgo trees are tall and straight, and wood is a high-grade material for making musical instruments and furniture. Ginkgo wood is of high quality and low price, and is known as "silver fragrant wood" or "silver wood". Ginkgo wood has luster, straight texture, fine structure, easy processing, no cracking, strong corrosion resistance, easy painting, low nail digging power, special medicinal flavor and strong insect resistance.
Four. Medicinal value of ginkgo tree;
The medicinal use of Ginkgo biloba is mainly reflected in three aspects: medicine, pesticide and veterinary medicine. In the Ming Dynasty, Li Shizhen once said: "Entering the lung meridian can benefit the temper, stop asthma and cough, and reduce defecation." Ginkgo biloba in Ben Feng Jing Yuan written by Zhang Lulu in Qing Dynasty has the effects of resolving phlegm, detoxicating and killing insects, and can be used to treat "furuncle, ulceration of mammary abscess, dental caries, infantile diarrhea, leucorrhea with red and white discharge, chronic stranguria, nocturnal emission and enuresis". In the Ming Dynasty, Chinese patent medicines made of Ginkgo biloba appeared in Jiangsu, Sichuan and other places for clinical use.
Five, the beauty value of ginkgo tree:
1, whitening: Ginkgo biloba leaves can reduce the level of lipid peroxidation, reduce freckles, moisturize the skin and create a beautiful face. Flavonoids contained in Ginkgo biloba leaves can hinder the formation and deposition of pigments in the dermis, thus whitening the skin and preventing pigmentation. Zinc, manganese, molybdenum and other trace elements in Ginkgo biloba leaves can scavenge oxygen free radicals and inhibit the growth of melanin in addition to flavonoids.
2. Wrinkle removal: Flavonoids glycosides and flavonols in Ginkgo biloba leaves are free radical scavengers, which can protect dermal cells, improve blood circulation and prevent cells from being oxidized to produce wrinkles.
3. Scavenging free radicals: Ginkgo biloba is one of the herbs with the ability to resist active genes, and Ginkgo biloba is very effective in protecting lipids (components of cell membranes) from free radicals. Ginkgo biloba leaves play multiple roles in protecting cells (especially brain cells). First, it promotes blood circulation and the transport of oxygen and glucose to cells; Secondly, when free radicals threaten cells, Ginkgo biloba leaves can protect cells from harm and eliminate free radicals in the body.
Extended data
According to statistics, there are about 12 ginkgo trees over 5000 years in China, among which there are 9 in Guizhou Province, which are mainly distributed within 200 kilometers around Guiyang, namely: Fuquan 1, Changshun 2, Duyun 2, Zunyi 2, Anshun 1, Majiang 1.
China Ancient Ginkgo Corridor is located in Badu Village, Xiaopu Town, Changxing. 12.5km long ginkgo forest has become a landscape characterized by "original, wild and strange". People say that "it is hard to see the ancient ginkgo tree when you travel all over the world". Ginkgo biloba can fully represent the classical elegance, freshness and tranquility of Huzhou, and also represent the industrious, simple and endless spirit of Huzhou people.
References:
Baidu encyclopedia-ginkgo tree