What are the functions and uses of trees

1. Trees can regulate the climate and maintain ecological balance. Trees through photosynthesis.

Inhale carbon dioxide.

Exhale oxygen to make the air clean and fresh. One acre of forest releases enough oxygen for 65 people to breathe.

2. Trees can prevent wind and fix sand, conserve water and soil, and can also absorb all kinds of dust, and one acre of forest can absorb 20-60 tons of dust a year.

3. Forests can reduce noise pollution. A 40-metre-wide forest strip can reduce noise by 10-15 decibels.

4. The secretions of trees can kill bacteria. There are 10,000 bacteria per cubic meter of air in the clearing, and only 3,400 in the forest.

5. Afforestation is the obligation of every citizen, and the state has also stipulated that March 12 is Arbor Day. Afforestation is of great benefit to our study, work, and life.

Trees: Trees are plants with woody trunks and branches that can live for many years. Generally speaking, the tree is called a tree, the trunk, the plant one, the branches are higher from the ground, and the crown can be formed. There are many species of trees.

Trees are a general term for woody plants, including trees, shrubs and woody vines, trees are mainly seed plants, and only tree ferns are ferns.

For trees, there are about 8,000 species of trees in China. Divided into banyan trees.

Poplar; Willow; cypress, etc.

There are also popular sayings that refer to relatively large shrubs as "trees", such as pomegranate trees.

Tea tree, etc. Trees play an important role in reducing land erosion and adjusting the climate, as they can absorb carbon dioxide from the air and store large amounts of carbon in their tissues. Trees and forests are habitats for many species. Tropical rainforest.

It is one of the most biodiverse places in the world. Trees provide shade and protection, wood can be used for construction, charcoal can be used for heating and cooking, and fruit can be used for food. Forest area is declining around the world in order to increase the amount of land available for agriculture.

Due to their longevity and practicality, trees have also appeared in many myths.

March 12 is Arbor Day, which has existed in the Chinese nation since ancient times"Love trees, nurture trees"traditions. I love the upright of the aspen and the softness of the weeping willow. Love the unyielding wind bones of pine trees.

In addition to this spiritual sustenance, people value its practical value more. With trees, there will be harmonious and beautiful nature; With trees, there is a refreshing, fresh air; With trees, there will be tall buildings, houses and railways.

Trees, which regulate the climate, purify the air, prevent wind and reduce noise, are man's best friend. Trees are oxygen manufacturing plants. One hectare of broad-leaved forest can absorb 1 ton of carbon dioxide and release tons of oxygen in 1 day.

Trees are dust filters, and when a large airflow of dust content passes through the trees, the dust with larger particles in the air will drop rapidly as the wind speed decreases.

Trees are the lungs of the earth. Trees are the main plants, and plants absorb carbon dioxide gas, release oxygen gas, and form an atmosphere on the earth's surface to protect the earth. Plants provide a lot of oxygen to the earth.

Animals absorb oxygen gas and exhale carbon dioxide gas, so that animals and plants living on the earth exchange gases and maintain ecological balance, without oxygen, everything on the earth does not exist, and the earth is a dead star.

Trees prevent soil erosion so that we have enough land. Conserve water, prevent desertification, stop sandstorms, carry out photosynthesis, and prevent the greenhouse effect. It is a class of producers in the biological chain.

Tree secretions kill bacteria. There are 10,000 bacteria per cubic meter of air in the clearing, and only 340 in the forest.

Trees reduce noise pollution. A 40-metre-wide forest strip can reduce noise by 10-15 decibels. Noise pollution has caused great harm to human life, study, work, rest, etc., and can be said to be people's "enemy". Therefore, we should pay more attention to afforestation.

The benefits and functions of the tree are regulating the air, preventing wind and fixing sand, reducing noise and killing bacteria, the tree in the process of growth, can exhale oxygen that is beneficial to the human body, making the air fresher, and at the same time, the root system of the tree is thick, which can firmly grasp the soil, in addition, there are cracks in the outer bark of the tree, which can absorb noisy sounds.

1. Adjust the air

The advantage of the tree is that it regulates the air, when the tree is photosynthesizing, it will release oxygen, and at the same time it will absorb carbon dioxide in the air, and the leaves of the tree can secrete oil, which will stick the dust in the air to the leaf surface, making the air around the plant fresher.

2. Wind prevention and sand fixation

The tree has the advantage of being windproof and sand fixation, the tree's root system is strong and grows quickly, and it is able to hold the soil firmly, so it can prevent heavy rains from washing the soil off the ground, causing the land to desertify, and at the same time, the tree is larger and can shelter the wind.

3. Reduce noise

Trees can play a role in reducing noise, and the surface of the tree has irregular longitudinal cracks, similar to honeycombs, which can absorb noisy sounds, so trees are often planted every 40 meters or so on both sides of the road to reduce the noise by 10 to 15 decibels.

4. Kill bacteria

Trees can play a role in killing bacteria, and in the process of growth, the substances secreted by trees can kill bacteria in the air, so there are 30,000 to 40,000 bacteria in every cubic meter of air in the open space, while the number of bacteria in the forest is usually only about 300 bacteria.

1. Photosynthesis, absorbing carbon dioxide and releasing oxygen. 2. Transpiration, regulating the humidity of air belt cracking. 3. Fix the soil and prevent soil erosion.

4. Barrier function, blocking wind and sand. 5. Increase greening and beautify the environment. 6. Reward the value of beauty and increase the artistic component.

7. Industrial value, wood, wood carving and other wood products. 8. Medicinal value, made into medicinal materials. 9. Trees can reduce noise pollution.

A 40-metre-wide forest strip can reduce noise by 10-15 decibels. <

1. Photosynthesis, absorbing carbon dioxide and releasing oxygen.

2. Transpiration, regulating air humidity.

3. Fix the soil and prevent soil erosion.

4. Barrier function, blocking wind and sand.

5. Increase greening and beautify the environment.

6. Appreciating the value of beauty and increasing the artistic component.

7. Industrial value, wood, wood carving and other wood products.

8. Medicinal value, made into medicinal materials.

9. Trees can reduce noise pollution. A 40-metre-wide forest strip can reduce noise by 10-15 decibels.

10. The secretions of tree foci can kill bacteria. There are thirty or forty thousand bacteria per cubic meter of air in the clearing, and only three or four hundred in the forest.