Castanopsis, whose scientific name is Ficus microcarpa, Ficus macrophylla and Ficus microcarpa, is a tall deciduous tree of Castanopsis of Moraceae. Its stem is thick, its tree shape is peculiar, its roots are exposed, it twists and turns and its ancient state is full. Its scientific name is green banyan, also known as green banyan, green banyan, yellow banyan and yellow banyan. In Buddhist scriptures, the green banyan tree is called the sacred bodhi tree. In the past, in the southwest of China, there was a custom that only in temples could green banyan be found. It is a tree of Moraceae, and Liriodendron is a tall deciduous tree. Its stems are thick, the tree shape is peculiar, the roots are hanging and claws are exposed, and it is winding and staggered, full of ancient state. Dense branches, large branches extending horizontally, and branchlets obliquely bent. The leaves are dense and oily green. Life span is very long, and trees over 100 years old abound. The flowering period is May-August, and the fruiting period is August-165438+1October. The fruit is spherical, yellow or purple. Castanopsis fissa originated in South China and Southwest China, especially in Chongqing, Sichuan and Hubei. It is light-loving, drought-tolerant, barren-tolerant, has aerial roots and is particularly adaptable. Garden application is suitable for planting in parks, lawns, river banks, scenic spots, planting alone or in groups for landscaping, providing places for people to enjoy the cool, and can also be used as street trees. Seeding, cutting, layering and other methods are commonly used in the propagation of Castanopsis fissa, and cutting propagation method is widely used at present. Its technical key points are: select a well-ventilated place with slightly higher terrain, dig 30-35cm, intensively cultivate, make the cutting bed width1.5m and height 0.3m, cover the bed with a layer of weeds or humus soil, and fill it with sand or vegetable garden soil of about 30cm to keep the cutting bed loose and breathable. In February-March or September-June 10, take 2-3 years old oblique hard branches as cuttings, cut them into 15-30cm long, obliquely insert them into the seedbed, and water them after insertion. Open field management, generally keep the air humidity in the bed about 85%. Don't let the bed be filled with water. When the light intensity is high, shade it properly and pay attention to ventilation. Transplanting in spring, transplanting in August-September of that year; Transplanting in autumn, and transplanting in April-May of the following year. Li Guo is also the city tree of Chongqing and Dazhou.