Trees are oxygen factories. One hectare of broad-leaved forest can absorb one ton of carbon dioxide and release 0.73 ton of oxygen in 1 day.
Trees are dust filters. When the airflow with large dust content passes through the forest, with the decrease of wind speed, the dust with large particles in the air will fall rapidly. In addition, some trees have fur on their skin or can secrete grease, which can stick dust to their bodies, thus greatly reducing the dust content in the airflow through the forest.
Trees are experts in sterilization. Many trees secrete fungicides during their growth, killing all kinds of germs brought by dust. According to the survey, there are 4 million bacteria per cubic meter of air in department stores, 580,000 in boulevards, 100 in parks and only 55 in forest areas. The difference of bacterial content in the air between forest areas and department stores is more than 70 thousand times.
In addition, trees are natural reservoirs and natural air conditioners.
Question 2: What kinds of common trees are there? The common functions are: pine, willow and poplar.
Functions: greening, water conservation, wind prevention and sand fixation, producing oxygen by consuming carbon dioxide through photosynthesis, reducing urban temperature, purifying air, etc.
Question 3: What is the role of big trees in sheltering from wind and rain? Greening the environment. Shading provides a living place for all kinds of birds.
The unreasonable exploitation and utilization of natural resources by human beings is the main reason for ecological imbalance. Deforestation, deforestation, overgrazing, etc. It will destroy forests and grasslands, cause soil erosion and land desertification, and make sandstorms occur frequently. Unreasonable development and occupation of land make the cultivated land area decrease day by day.
Afforestation plays an important role in maintaining ecological balance, with the functions of producing oxygen, purifying air, conserving water, conserving soil and water, regulating climate, preventing wind and fixing sand, and eliminating noise. Now that we know so many benefits of afforestation, we should consciously fulfill the obligation of afforestation and lay the foundation for creating our beautiful home. Afforestation not only has very important environmental benefits for human survival, but also has great economic benefits for human production and life.
Question 4: The function of all kinds of trees: conifers, tall trees mainly provide wood.
Cinnamomum camphora mainly provides aromatic oil.
Sandalwood mainly provides drugs for cardiovascular diseases.
Taxus mainly provides drugs for treating hypertension.
Illicium verum and Osmanthus fragrans mainly provide seasonings.
Pine trees in the south can also be cut with turpentine to extract rosin, turpentine and black smoke, which can be used as toner for paint, paper, chewing gum and laser printers.
The list goes on and on. Of course, greening, air purification, soil and water conservation and reducing carbon emissions in the atmosphere are all their functions.
Question 5: What are the benefits of trees? 1. Trees can regulate climate and maintain ecological balance. Through photosynthesis, trees inhale carbon dioxide and exhale oxygen, making the air clean and fresh. An acre of forest releases enough oxygen for 65 people to breathe.
2. Trees can prevent wind and fix sand, keep water and soil, and absorb all kinds of dust. An acre of forest can absorb 20-60 tons of dust a year.
3. Forests can reduce noise pollution. A 40-meter-wide forest belt can reduce noise10 ――15db.
The secretions of trees can kill bacteria. There are 34,000 bacteria per cubic meter of air in the open space, while there are only 3,400 bacteria in the forest.
Afforestation can purify the air, beautify the environment and green the motherland. It can also make oxygen in the carbon dioxide exhaled by people for people to absorb and breathe. If a large number of trees are not planted, the oxygen on the earth will be difficult to meet the needs of human beings and all kinds of creatures. Afforestation can also reduce noise. Noise pollution has caused great harm to human life, study, work and rest, and can be said to be people's "enemy". Therefore, we should pay more attention to afforestation. Noise can also lead to hearing loss, deafness and stupidity, as well as heart, blood pressure and nerve abnormalities in long-term life. Even, it can make people die under long-term noise. In this way, afforestation can reduce noise by four or five times. Afforestation not only has very important environmental benefits for human survival, but also has great economic benefits for human production and life.
Question 6: What is the function of trees? If you are around us, between tall buildings, there are green spaces, and you can plant green trees to shade you, you will feel as if you have entered an oasis, and you will no longer feel boring and monotonous, cheerful and full of vitality.
After three years' research, researchers from the American Forest Service Center have proved that planting more plants in urban residential areas will bring great benefits to mankind. They think:
-Trees can coordinate people's psychological state and improve interpersonal relationships. The researchers conducted a three-year survey of 300 residents in different residential areas. The architectural structure of these residential areas is basically similar, and the social status of residents is basically the same. The difference is that some residential areas are surrounded by trees and grass, while others are bare and are real deserts surrounded by concrete. Residents living in the shade of trees have closer ties between neighbors and more harmonious interpersonal relationships. People like to go out, feel safe and feel more calm. In such an environment, even violence has decreased. However, people living in the desert live in seclusion and prefer to stay in apartments. Therefore, researchers believe that places with trees and flowers provide a pleasant environment for people to strengthen and improve interpersonal relationships. With the help of friends or neighbors, unhappiness and frustration can be reduced. The increase in interpersonal communication has reduced quarrels and violence.
-The harm of air pollution to health has been reduced. People living in places where trees and flowers are widely planted are not only healthy, but also have a much lower incidence of cancer. Scientists explained that this is because the air around plants is particularly fresh and contains relatively more negative ions. Living in such an environment, people can breathe more fresh air, which is very beneficial to cardiopulmonary function.
In addition, surrounded by green, people can enjoy peace, gentleness and feel more comfortable. Therefore, it can calm nerves, lower blood pressure and relieve fatigue more easily.
As for the role of trees in regulating temperature, reducing noise and purifying air, it has long been known. According to the research of American Forest Service Center, trees can effectively absorb dust and industrial waste gas in the atmosphere, and a tree can store the waste gas emitted by a car driving 16 km a year.
-planting a large number of trees has great economic benefits. In addition to indirect economic benefits, urban tree planting has direct economic benefits that cannot be underestimated. For example, trees can reduce the cost of air conditioning in urban buildings. In winter, trees can generate heat and greatly reduce the wind speed, thus keeping the building warm. In summer, trees can block out the sun. If you plant trees in the west of the building, you will get more shade. Even bare branches can reduce solar radiation by 30%. In addition, trees can also improve water quality, reduce floods and wind disasters, and reduce noise pollution.
Question 7: What are the benefits of protecting trees? Trees can produce oxygen through photosynthesis to prevent soil erosion.