Spruce (Latin name: Picea asperata Mast.) alias Maoxian spruce, Maoxian fir, etc. for arbor. Up to 45 meters, diameter at breast height up to 1 meter; bark light grayish brown or light brownish gray, cracked into irregular scales or slightly thicker pieces falling off.
Spruce is a precious tree species in China. It is produced in southwestern Shaanxi (Fengxian), eastern Gansu (Liangdang) and Bailongjiang River Basin. It is slightly shade-tolerant and can withstand dry and cold environmental conditions. It grows at an altitude of 2400-3600 meters. The spruce trunk is tall and straight, with few knots, slightly soft material, straight and uniform texture, fine structure, easy processing, and good resonance performance. It can be used for construction, aircraft, musical instruments (piano, violin), boats, furniture, appliances, boxes, planed plywood and veneer, and wood fiber industrial raw materials.
In February 2014, Swedish scientists discovered a 9,500-year-old spruce tree in a mountain range, which is called the "world's oldest" tree, and it is still growing.
growth habit
Spruce is shade-tolerant and cold-resistant, prefers cool and humid climates and fertile, deep, well-drained slightly acidic sandy soils. It grows slowly and is a shallow-rooted tree species. In the area of 2400-3600 meters above sea level, it is often mixed with purple spruce, Minjiang fir, and purple fir, or into a pure forest.
Spruce is a shallow-rooted tree species, slightly shade-tolerant, able to withstand dry and cold environmental conditions. It grows rapidly and develops well in the slightly acidic brown forest land with cool climate, deep soil layer and good drainage. Under full light, the natural regeneration of the forest grows vigorously.
Distribution
Spruce is a precious tree species in China. It is widely distributed in the mountains of North China, and is also distributed in the Xiaoxing'an Mountains in the northeast. Produced in southwestern Shaanxi (Fengxian), eastern Gansu (Liangdang) and Bailong River Basin, Tao River Basin, the upper reaches of Minjiang River Basin in Sichuan and Jinchuan Basin.
main value
The wood is yellowish-white, light and soft, with straight grain, fine structure, specific gravity of 0.55-0.66, and elasticity. It can be used for construction, aircraft, sleepers, poles, boats, appliances, furniture and wood fiber industrial raw materials. Pine resin can be cut from the trunk. Aromatic oils can be extracted from roots, wood, branches and leaves. The bark can extract tannin extract. The material is excellent, the growth is fast, and the adaptability is strong, so it should be selected as the afforestation tree species in the distribution area.
Economic Value
The wood is straight, easy to cut, and has no hidden defects. It can be used for electric poles, sleepers, construction and bridge materials; it can also be used to make musical instruments, gliders, etc., and is the raw material for papermaking. The oil content of spruce needles is about 0.1 to 0.5%, and aromatic oils can be extracted. The bark contains 6.9-21.4% tannins which can be extracted.
The tree is dignified, has strong adaptability, strong wind resistance, smoke resistance, fine wood texture, firm quality, and water resistance. Leaves are used as medicine. The material is excellent, which is used as raw materials for aircraft, musical instruments, papermaking, and rayon; the trunk can take turpentine.
ornamental value
Potted plants can be used as indoor ornamental trees and are mostly used in solemn and solemn occasions. Before and after Christmas in winter, they are often placed in restaurants, hotels and some families for Christmas tree decoration.