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Living fossil metasequoia

Living fossil metasequoia (Picture 1)


About 10 million years ago, when the Cretaceous was born 100 million years ago, there were about 10 species of metasequoia, which were widely distributed in the northern hemisphere. In the Quaternary, the earth was covered by glaciers, and the metasequoia was extinct everywhere. Modern geologists discovered "metabolized fossils" in the Cretaceous strata and concluded that there is no more metasequoia in the world. However, in 1941, a Chinese forester discovered a lush plant of Metasequoia in Lichuan County, Hubei Province. This discovery has sensationalized the academic world. Later, many scientists went to the scene to observe that the living metasequoia and the metasequoia fossils were a kind of tree. So officially named in 1948. This major discovery by Chinese scientists has aroused the shock of the global botanical community. People highly praised "this is a major discovery in the botanical world in the last century." Metasequoia is recognized as the "living fossil" of plants in the world. In 1975, it was listed as a first-class protected plant in China. Metasequoia is of great significance for the study of ancient plants, paleoclimate, paleogeography and geology, as well as the development of gymnosperm phylogeny.

Metasequoia is a fast-growing tree species with strong photostability. It has strong adaptability to environmental conditions, is resistant to barrenness and drought, and is easy to survive. Since the discovery of Metasequoia, especially after liberation, it has been widely introduced throughout China, from the north to Liaoning Caohekou, Liaodong Peninsula, south to Guangdong and Guangzhou, east to Jiangsu and Zhejiang, west to Yunnan Kunming, Sichuan Chengdu, Shaanxi Wugong, and Metasequoia has become One of the popular greening trees. Afforestation in Hubei, Jiangsu, Anhui, Zhejiang, Jiangxi and other provinces has grown rapidly. It has been introduced and cultivated in more than 50 countries and regions such as Asia, Africa, Europe, America, and Latin America. Leningrad and Alaska, which are 60 degrees north latitude, can grow in the wild at low temperatures of minus 40℃.

Metasequoia is a "living fossil" tree species and is an ornamental tree species of autumn leaves. It is most suitable for planting in gardens. It can also be planted or planted. It can be used for embankment, lakeside, poolside, courtyard and other greening. It can also be potted, or planted in a piece to create a landscape forest and adapt to evergreen ground cover plants. It can also be planted in front of a building or used as a street tree. Metasequoia has certain resistance to sulfur dioxide and is an excellent tree species for greening in industrial and mining areas. The Metasequoia sapwood is white, the heartwood is brownish red, the material is light and soft, the texture is straight, the structure is slightly thick, and the hardness of the material is large and early, and it is not resistant to water and humidity. It can be used for construction, sheet, paper, utensils, modeling and interior decoration.

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