What is the importance of forests to humans?

1. Release oxygen. Various types of plants, such as trees in forests, undergo photosynthesis.

Absorbs carbon dioxide.

Oxygen is released, and it is respirated.

Absorbs oxygen and releases carbon dioxide. Photosynthesis produces more than 20 times more oxygen than respiration, so forests are comparable to consumers of carbon dioxide, oxygen manufacturing plants. 1 hectare of forest absorbs 1 ton of carbon dioxide and releases tons of oxygen per day.

This oxygen can be used by 1,000 people for a day.

2. Carbon sequestration function. Forest plants convert atmospheric carbon dioxide into carbohydrates through photosynthesis.

in biomass. This process is called carbon sink. Green plants convert carbon dioxide from the atmosphere into organic matter through photosynthesis, providing the most basic substances and energy for the living world**.

This substance** sustains the survival of animals and humans.

3. Purify the air. Many plants can absorb pollutants in the atmosphere while maintaining normal physiological functions, and metabolize, degrade or enrich them in the body, so that air pollution can be purified to a certain extent. When the urban green area reaches more than 50%, the effective control of pollutants in the atmosphere is obvious.

Fourth, the dust retention function. It is mainly manifested in three aspects: first, the dense branches and leaves of forests and trees form airflow resistance, so that the smoke and dust lose the power to move in the atmosphere and fall; Second, the leaves of trees have a strong transpiration surface, which makes the smoke and dust moist, increases weight, and is easy to fall; Third, many trees have fluff or secrete mucus on the surface to block smoke and dust.

According to the data, every square meter of pine forest can absorb grams of dust per day.

5. Cool down and keep warm. The forest has a large canopy that forms a green thermostat between the surface and the atmosphere, which not only makes the forest inside.

There are special variations, and they also have a great impact on the temperature around the forest. Forests can lower daily maximum temperatures and raise daily minimum temperatures, cooling summers and warming winters. Vigorous reforestation in cities will largely weaken the summer "heat island effect".

Harm to people.

Do you like green? Of course, I'm talking about a green earth. The total area of the Earth is about 100 million square kilometers, and the area of forests is less than 10% of the total area of the Earth.

Only. This year, fires have destroyed forests, and in 2019 alone, more than 70,000 ** disasters have occurred in the Amazon.

1. Forests have the benefits of conserving water and soil and preventing soil erosion for human beings;

2. Forests have the advantage of conserving water sources for human beings and making green mountains always flow in fine water;

3. Forests increase air humidity for humans.

the benefits of improving the local microclimate;

4. Forests have the benefits of farmland shelterbelts for human beings to protect crops, prevent dry and hot winds, and increase crop yields;

5. Forests have the benefits of reducing environmental noise and beautifying the environment for human beings;

6. Provide wood for human production and life.

Forests are the "cradle of humanity". Our ancestors were born, grew up in the forest, and finally walked out of the forest. Forests are the "lungs of the earth".

The green leaves carry out photosynthesis, inhale carbon dioxide and release oxygen; The oxygen in the air is 60 ** in the forest. Forests are a "paradise for wildlife". More than half of the world's more than 5.3 million species of plants and animals are in forests.

Forests are the "general dispatch room" of nature's ecological balance. It prevents wind and fixes sand, conserves water sources, maintains water and soil, purifies the air, reduces noise, beautifies the environment, regulates the climate, prevents and fights disasters, and it is the main body of terrestrial ecology. Forests are a huge "reservoir of resources".

It provides humans with a variety of wood, dried and fresh fruits, woody grains and oils, wild animals, Chinese herbs and other forest by-products. More than $400 billion is created annually in global forest products. Forests are also the originator of coal, natural monitors, natural epidemic prevention officers, green sentinels for alarms, natural barriers for soldiers, and beauticians of nature......In short, forests nurture human beings, and their ecological and social benefits far outweigh their own economic benefits.

If human beings want to survive better for a long time, they cannot live without forests. March 21 is World Forestry Day. Let's weave more green and protect our homeland.

Hello dear, the forest is the cradle of humanity. If water is the source of life, then forests are the cradle of humanity. From the time life ascends from the sea to land, climbs the tree, and finally shakes hands with the ape to say goodbye, the process is done in the forest.

Forests are the backbone of civilization. The birthplace of the four ancient civilizations was closely related to dense forests and good ecology at that time. The destruction or transfer of human civilization is often the result of the disappearance of forests and the deterioration of ecology.

Forests are a treasure trove of resources. In addition to providing a large amount of timber for human beings, forests can also provide human beings with a large number of food, medicinal materials, mineral deposits and industrial raw materials with high economic and health value. Forests are green barriers.

Forests, wetlands and oceans are known as the three major ecosystems in the world, which have a variety of ecological functions such as regulating climate, maintaining water and soil, conserving water sources, preventing wind and fixing sand, reducing noise, sterilizing and dusting, filtering sewage, conserving species, beautifying the environment, preventing and reducing disasters, etc., and are also the "natural oxygen bar" for purifying the air.