The role of big trees

Regulating climate: The branches and leaves of trees can purify the air in photosynthesis, and transpiration can improve the air humidity. Reduce noise: leaves and bark can absorb echoes. Sterilization: tree secretions can kill bacteria. Windbreak and sand fixation: Big trees are tall and have a barrier effect. Industrial value: it can be used as furniture.

What does the big tree do? 1. Adjust the climate.

The trees are luxuriant in foliage. In the process of growth, leaves will carry out photosynthesis, absorb external carbon dioxide, release oxygen and keep the environment fresh. Moreover, leaf transpiration will release water, increase air humidity, and thus reduce temperature.

Step 2 reduce noise

The bark of a big tree is rough and can absorb echoes, and the lush leaves have a strong ability to absorb external sounds, so the big tree can reduce noise. Generally, a forest ten meters wide can reduce the noise by 30%.

3. Sterilization

Substances secreted during the growth of trees can kill bacteria in the air, so there are only more than 300 bacteria per cubic meter of air in the forest, while there are more than 40 thousand bacteria per cubic meter of air in the open space.

4, wind and sand fixation

The roots of big trees are well developed, and in the process of growth, the roots will go deep into the soil, thus protecting the soil layer and avoiding being washed away by the current. Moreover, tall trees can resist the strong wind from the outside and act as a barrier.

5. Industrial value

Big trees have industrial value. The cut trunk can be used as wood to make furniture or buildings, and can also be used as raw materials for wood carving to make works of art.