What are the main functions of forest resources?

Forest resources have a wide range of functions, mainly in the following aspects: providing information for industrial and agricultural production: forests provide a lot of wood and various raw materials for industry, food for human beings and feed for animals.

Purify the air: Forests have many functions to purify the air. One is to keep the balance between oxygen and carbon dioxide in the atmosphere; Secondly, forests can reduce the concentration of harmful gases in the atmosphere. It can not only block harmful gases, but also filter and absorb harmful gases; Third, reduce radioactive substances in the air. Forests can block, filter and absorb radioactive substances; Fourth, reduce the dust in the air. Forests can not only block, filter and adsorb dust in the air, but also fix the dust on the ground; Fifth, reduce bacteria in the air. Trees can secrete volatile substances, which can kill bacteria and inhibit bacteria.

Purification of sewage: Forests greatly reduce the content of dissolved substances in flowing water and the number of bacteria in water.

Noise reduction: Dense branches and leaves of trees make sound waves reflect or absorb directionally, which greatly reduces noise.

Adjust climate: forests can adjust temperature, humidity and wind. A large area of forest can adjust the climate of a large area or even the whole world, and a small area of forest belt can also play the role of cooling, humidifying and purifying the air.

Soil and water conservation: forest canopy can retain precipitation, avoid direct erosion of the surface and store rainwater. Roots can fix soil and absorb water. Fallen leaves and dead branches can also absorb quite a lot of water, reduce surface runoff and prevent soil erosion.

Protect farmland: Forests and shelterbelts can reduce disasters such as wind, drought and waterlogging. Forest belts can greatly reduce wind speed, reduce water volatilization and increase humidity.

In addition, the forest has the functions of maintaining ecological balance, beautifying the environment and promoting human health.