Picea type
1. White cedar: The tree is 20 meters high and 50 cm in diameter at breast height. It grows near Kangding, Sichuan, and is vertically distributed between 2600-3700 meters above sea level. Most of them are scattered or mixed in western Sichuan spruce and scaly spruce, and the number is small.
2. Picea crassifolia: The height of the tree is 45 meters, DBH 1 meter. It is distributed in the Bailong River Basin and Taohe River Basin in the southwest of Shaanxi, the Minjiang River Basin and Jinchuan Basin in Sichuan, with an altitude of 2,400-3,800 meters.
Yunshan property
Spruce is a shallow-rooted tree species, which is resistant to shade and cold, likes humid climate and fertile slightly acidic sandy soil with good drainage, and grows vigorously under light conditions.
What does spruce look like?
Heteromorphic branchlets are sparsely or densely pubescent, pale yellow when they are annual, with white powder on the leaf pillow, or the white powder is not obvious. The cone is cylindrical, rectangular or cylindrical, with narrow upper end, green before maturity and light brown or chestnut brown when mature.
Leaves: Spruce leaves are radial, the leaves on the lateral branches extend upward, the leaves on the lower part and both sides are curved upward, with four sides, slightly curved, slightly sharp or sharp at the top, and the cross section is four sides, four sides, four to eight on each side, and four to six on each side.
The bark of colored spruce is grayish brown or grayish brown, which splits into irregular scales or falls off into slightly thicker slices.
Function and value of spruce
1. economic value: spruce is light and soft, with flat texture, fine structure and elasticity, and can be used as a material for buildings, airplanes, sleepers, telephone poles, ships, appliances, furniture and industrial wood fibers.
2. The rhizome, branches and leaves of Picea crassifolia can be extracted with aromatic oil, and the bark can be extracted with tannin extract, which has excellent material, fast growth and strong adaptability and is suitable for planting in forest distribution areas.