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What's the function of pine trees?
The role of pine trees:

1. Pine is good in material, high in strength, corrosion-resistant, straight in texture, rigid and flexible, load-bearing, straight and not deformed, tough and elastic, and can be used as materials for buildings, bridges, columns, sleepers, poles, vehicles, agricultural tools, papermaking, man-made fibers and so on.

2. pine needle powder is made from pine needle leaves, and 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.

3. Pine pollen is a precious natural high-grade nutritious food raw material. People in China have been eating pine pollen for more than 2000 years. According to Compendium of Materia Medica, it has the functions of "moistening heart and lung, benefiting qi, expelling wind and stopping bleeding". The ancients mixed pine pollen with refined honey to make "yellow sponge cake", which is sweet and delicious, and has the magical effect of strengthening the body and prolonging life. Pine pollen is rich in more than ten kinds of minerals, physiologically active substances, hormones, enzymes and alkaloids with mediation function.

4. Rosin and turpentine are important industrial raw materials, which are widely used in soap making, paper making, coating, ink, matches, rubber, adhesives, printing, food processing, chemicals, spices, medicine, plastics, electricity, pesticides and electronics industries.

Turpentine is a wonderful preservative and insect repellent, which makes pine trees immortal after water and rain, and most moths dare not eat pine trees. 6. Pine nuts are raw materials for candy and cakes. It is crisp and soft, emitting a faint rosin. Since the Tang Dynasty, pine nuts have become a favorite snack. Pine nuts are rich in protein and various minerals, vitamins and fats, accounting for 63.5%, most of which are oleic acid and linoleic acid.

7. Pine branches, pine cones and pine needles are often used as fuel or fuel for cooking.

8. Pine trees have a long history of being used as medicine, which was recorded in the ancient Pharmacopoeia. Modern Chinese medicine practitioners and farmers use pine needles, turpentine, turpentine, pine flowers, fruit shells, bark and pine nuts as medicine, which can be refined into medicine. Evergreen pine trees are our inexhaustible treasure.