What are the benefits of planting trees?

1, against sandstorms

Afforestation can prevent wind and fix sand. Wherever the sandstorm blows, the countryside is buried and the city becomes ruins. In order to resist the attack of sandstorm, it is necessary to build shelterbelts to weaken the wind. Once the wind meets the shelter forest, the speed will be reduced by 70% ~80%. If many forest belts are arranged in parallel at a certain distance and grass is planted, the sand blown by wind energy will be reduced.

2. Economic construction

Afforestation can provide many useful things for human beings. Many fruits and medicinal materials are forest products; Tea, rubber and new carbon are all contributions of trees. Forests are really useful.

3. Eliminate air pollution

According to statistics, an acre of forest can absorb 20,000 to 60,000 kilograms of dust a year and 67 kilograms of carbon dioxide and 48 kilograms of oxygen every day; It can absorb 4 kilograms of toxic gas sulfur dioxide in a month, and one acre of pine and cypress can secrete 2 kilograms of bactericide for two days and nights, which can kill bacteria such as tuberculosis, typhoid fever, diphtheria and dysentery.

4, natural dust collector

There are many tiny hairs and mucus on the leaves, which can absorb harmful particles such as carbon and sulfide in the smoke and dust, as well as harmful substances such as germs and viruses, and can also greatly reduce and reduce the dust in the air. A hectare of lawn can absorb more than 30 tons of smoke and dust every year. Therefore, people call green plants "natural vacuum cleaners".

5, oxygen factory

Leaves can absorb carbon dioxide from sunlight and make oxygen needed by human body. It is measured that one hectare of broad-leaved forest absorbs about one ton of carbon dioxide and releases 700 kilograms of oxygen every day. Therefore, people call green plants "oxygen factories".

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