2. Pine is good in material, high in strength, corrosion-resistant, straight in texture, with the characteristics of combining rigidity with softness, bearing capacity, straightness without deformation, toughness and elasticity, so it can be used in buildings, bridges, columns, sleepers, poles, vehicles, farm tools, paper making, man-made fibers and so on.
3. Pine needle leaves can be processed into pine needle powder, which contains more than 40 kinds of nutrients necessary for the growth of livestock and poultry, such as phytochemicals, growth hormone, protein, fat, vitamins, trace elements and 18 amino acids. Aromatic oil extracted from pine needle leaves has been widely used in soap, toothpaste, cosmetics, candy, essence, biscuits and other products. The residue after distillation in pine needle oil is still the first-class raw material for refining glue and alcohol.
Growth habits of pine trees:
Pine trees have strong adaptability and can grow in various types of soil, but the soil will still have a direct impact on the growth trend of pine trees, so try to choose areas with fertile soil to ensure the healthy growth of pine trees. If the area is relatively abundant in water, pine trees should be planted in acidic soil as far as possible, but some varieties are more suitable for planting in alkaline soil.
The vast majority of pine trees like light, and their morphology is reflected in sparse crown distribution and strong natural pruning ability, so physiologically, their compensation points will not be the same as other tree species. In the process of forest formation, pioneer trees are usually formed. Once the virgin forest is destroyed by external force, the pioneer tree species will develop rapidly and replace the original tree species, but its own stability is not ideal.