The functions of caring for trees and protecting forests are:
1, maintaining ecological balance.
Trees can breathe in carbon dioxide and breathe out oxygen through photosynthesis, so they can make the air cleaner. According to the survey, one acre of forest can release oxygen for 65 people to breathe.
2, wind and sand fixation.
Because the roots of trees need to be consolidated, they can inhale a lot of dust and keep the soil and water at the same time. It is understood that an acre of forest can inhale 20-60 tons of dust every year.
3. Other functions.
There is no doubt that trees can also reduce noise pollution, and a forest belt 40 meters wide can reduce noise 10- 15 decibels; The secretions of trees can also kill bacteria. There are 30,000 to 40,000 bacteria per square meter in the open space, but only 300 to 400 in the forest. In addition, big trees can lower the temperature and increase the humidity.
Protecting forest resources:
1. "Protecting forests", that is, protecting forest resources, is a common propaganda slogan at home and abroad. Forest is a surface biological community with rich species, complex structure and diverse functions. Forest and abiotic environment in space are organically combined to form a complete ecosystem.
2. Forest is the largest terrestrial ecosystem on the earth, an important part of the global biosphere, a gene pool, a carbon pool, a water storage pool and an energy pool on the earth, which plays a vital role in maintaining the ecological balance of the whole earth and is a resource and environment for human survival and development. Therefore, human beings need to protect forests.