trait
Evergreen tree, 30 meters high, with a broad conical or elliptical crown. Young bark is smooth, gray-green, old bark is light gray-green, irregular scales fall off, and milky white endothelium. Leaves are a bunch of three needles, thick and hard, 6 ~ 10 cm long, with fine serrations on the edge and leaf sheaths falling off. Male inflorescence is10cm long and bright yellow. The cone is ovoid, 4 ~ 7 cm long and light grayish yellow. The seeds are large, oval and brown with narrow wings. The flowering period is from April to May, and the fruit ripens in the following year 10- 1 1.
China endemic tree species are naturally distributed in Shanxi, Shaanxi, Shandong, Henan, Hebei, Sichuan, Hubei and Gansu, and cultivated in southern Liaoning, Beijing, Hebei, Shandong, Jiangsu, Shanghai and Anhui.
Habit Pinus bungeana is a light-loving tree species, and it is slightly tolerant to shade when it is young. Drought tolerance, but also a certain degree of cold tolerance, its temperature adaptation range is -30 ~ 40℃, but it does not grow well under high temperature and high humidity. The requirements for soil are not strict. Neutral, acidic and calcareous soil can grow, but it grows better in calcareous soil and sandy loam with good drainage and appropriate humidity. Deep roots, strong wind resistance and long service life, which can reach more than a thousand years. In Chang 'an County, Xi City, Shaanxi Province, there is an ancient Pinus bungeana with the age of 1300. Strong resistance to sulfur dioxide and smoke pollution.
Transplant management
Transplanting of adult trees is carried out with soil balls in late autumn or early spring. Because the main root is long and the lateral root is few, the digging ball should damage the root system as little as possible and as big as possible. Because the growth of pine mainly depends on the elongation of terminal buds, the germination ability of its dry branches is weak. In order to make the tree rich and complete, it can't be pruned, but only the branches of diseases and pests and dead branches can be cut off before planting. The planting site should be large, and foot fertilizer should be applied in the site before planting. The planting depth should be flush with the ground of the transplant site with soil balls. After planting, water the roots and set up windbreaks. Pay attention to water and fertilizer management during the growth period, and pay attention to watering or foliar spraying in the dry season. For plants with high trunks, attention should be paid to avoid sunburn on dry skin.
Pinus bungeana has strong resistance to pests and diseases, but there are still pine aphids and black mold, so attention should be paid to prevention and control
App application
Pinus bungeana has a beautiful tree shape and peculiar bark. Its dry bark is mottled milky white, colorful as a dragon, lined with a green crown, which is very beautiful. It is an excellent ornamental tree species unique to China. Thousand-year-old trees can be seen in ancient palaces, temples, Lin Yuan and cemeteries in China. Now many cities in China are widely planted in parks, courtyards, green spaces and streets. Solitary planting in the grass green altar, clustered planting in the garden, or planting in front of the building or on the side of the path have good ornamental effects. The ancients described the beauty and magnificence of Pinus bungeana with the poem "The leaves are covered with silver, the flowers are dried up, the temple gate is misty and rainy, and the white dragons are mixed".
Pinus bungeana is soft and crisp with beautiful texture, which can be used for furniture, stationery and so on. Seeds can be pressed for oil or eaten.