What kind of harm does cutting down trees do to humans

Trees play an important role in protecting the environment on which human beings depend, and if we humans destroy trees seriously, we will inevitably be punished by nature. There are many different types of trees in the world, and they play a very important role in nature. Forests are the lungs of the earth, and we need to take care of them for the survival of human beings.

Let's talk about the impact of tree destruction on humans. <>

Example: 1: Trees bring us not only food, timber, shelter and jobs, but more importantly, the tree kingdom has a significant ecological benefit to the environment on which human beings depend.

This is something that nothing else can do; It cannot be replaced by anything else. If humans destroy trees, they destroy their own homes. Therefore, we must all protect the environment in which we live.

Excessive felling of trees, destruction and encroachment of forest land, leading to the dwindling of forest resources and various natural disasters.

It occurs frequently, and causes the degradation of related economic industries, the increase in unemployment, and the increase in poverty, which has an impact on the entire world economy.

The impact on social life is far-reaching, and human beings have paid a high price for resources and the environment in order to survive and develop. <>

2: Impact on rainfall: The root cause of rainfall on land is atmospheric circulation.

When water vapor from the ocean.

After reaching the mainland, it usually causes rainfall. However, in some areas, the process of rainfall is different due to the different conditions of forest vegetation. Where there is a lot of forest vegetation, there is more rainfall, where there is less forest vegetation, there is less rainfall, and where there is no forest vegetation, there is even no rainfall.

According to scientists, rainfall is related to the reflectivity of the earth's surface.

3: Impact on the atmosphere: ozone layer.

thinner and thinner, carbon dioxide.

Photosynthesis is not possible.

Oxygen decreases and carbon dioxide increases. The role of trees for humans is to produce oxygen, reduce carbon dioxide, vacuum dust, purify the air, manufacture organic matter, solidify soil, chemical raw materials, prevent wind, cool, transform inorganic matter, and are indispensable producers of the biosphere. <>

Nowadays, people cut down and take trees from nature excessively in order to build houses and other wood products. However, cutting down trees is against the laws of nature, so the damage will only increase. The specific damage is mainly manifested in the following aspects:

The harm caused by indiscriminate logging is huge, mainly including:

1.Deforestation destroys the biodiversity of forests, and many organisms lose their original habitats and become endangered.

2.Indiscriminate deforestation will reduce the ecological regulation function of forests and reduce the air purification capacity of forests.

3.Soil erosion, rocky desertification, and prone to disasters such as debris flows and landslides; Quicksand silted up, clogging the reservoir channel. The Yellow River has the highest sediment content in the world, and when the flood comes, water and sand account for half each.

Due to the siltation of quicksand, the riverbed in some places in the lower reaches of the Yellow River is 12 meters higher than the land outside the embankment, and even higher than the city wall of Kaifeng City, which seriously threatens the safety of people's lives and property.

4.deterioration of the ecological environment, leading to local or global ecological imbalances, species reduction or extinction;

5.climate changes, local rainfall decreases, weather balance is out of balance, vicious weather increases, and natural disasters occur frequently;

6.The quality of the air environment is decreasing, oxygen is decreasing, sand and dust are increasing, the greenhouse effect is intensifying, and the living environment of human beings is deteriorating.

7.Indiscriminate deforestation can homogenize local species and reduce their ability to resist pests and diseases, such as pine caterpillars in areas with more plantations.

The reduction of forest resources is a serious harm to human beings, which can exacerbate soil erosion and cause soil erosion, which not only changes the ecological environment in the upper reaches of the river basin, but also exacerbates the amount of sediment in the river, raises the river bed and increases flooding, for example, the Yangtze River flood in 1998 is closely related to deforestation in the upper reaches. For human beings to develop, they must live in harmony with nature and prohibit indiscriminate logging. In this way, we can be given a happy and warm home, so that human beings can achieve sustainable development and enable our future generations to live a normal life.

Ecological imbalance. Logging can make many organisms unable to find their homes, leading to ecological imbalance.

There is an increase in windy and sandy weather and windy weather. The woods have a certain wind-blocking effect, he can filter sand and dust, and change the strength of the wind.

The Earth's oxygen content is decreasing. The forest is commonly known as the Great Oxygen Bar, and every day the tree absorbs carbon dioxide and delivers oxygen to nature.

Air quality is getting worse day by day. Trees have the function of purifying the air, and the leaves can absorb a large number of microparticles in the air.

Soil erosion and desertification are increasing. Trees have the effect of preventing soil erosion.

Excessive felling of trees or forests is a damage to the natural environment and harm to humans.

1) Cutting down trees is easy to soil erosion, if the vegetation coverage rate is low, the rainy season will cause a large amount of soil erosion, destroy the fields, fill the riverbed, and silt up the estuary, which is extremely harmful.

2) The lack of vegetation on the ground and the rise in the earth's temperature have led to the melting of glaciers, snow and ice, and the rise of sea levels, which have inundated villages.

3) The surface soil lacks vegetation protection, the land is desertified, and natural disasters such as mudslides will occur in case of heavy rain.

4) Without plants absorbing carbon dioxide, oxygen would not be produced, the atmosphere would run out of oxygen, and species would become extinct.

Earth is one of the eight planets in the solar system, the third planet in order from near to far, and it is also the terrestrial planet with the largest diameter, mass and density in the solar system, 100 million kilometers away from the sun. The Earth rotates from west to east while revolving around the Sun. It is now 4.0 billion 4.6 billion years old, [1] and it has a natural satellite, the Moon, which forms a celestial system, the Earth-Moon System.

It originated from the primordial solar nebula 4.6 billion years ago. Of these, 71% is oceanic and 29% is land, and the Earth appears blue when seen from space.

Ecological balance. Personally, I think.

The human consequences of indiscriminate felling of trees include:

1.Ecological imbalance: Trees are an important part of nature, they can absorb carbon dioxide and release oxygen, control soil erosion and maintain ecological balance. If trees are cut down indiscriminately, the ecological environment will be damaged, and the land will be barren and the climate will deteriorate.

2.Reduced water sources: Trees play a role in intercepting rainwater and increasing soil moisture. If trees are cut down indiscriminately, water sources are reduced, leading to drought and desertification.

3.Exacerbation of disasters: Indiscriminate felling of trees can exacerbate natural disasters such as landslides and mudslides. Because after the root system is destroyed, there is no fixed effect, and the mountain is prone to landslides and debris flows.

4.Ecosystem collapse: In forest ecosystems, each plant and animal has its own habitat and connections, and in this delicate balance, disturbed links can cause a chain reaction. Cutting down trees leaves many wildlife without their homes, as well as food**.

5.Compromise on human health: Health problems will be exacerbated by air pollution and poor environments.

Due to the increase in air pollution, the destruction of forests and grasslands, and the decline in the number of wild animal and plant species, human contact with many beneficial microorganisms will also be reduced, resulting in the budding and spread of some new infectious diseases.

To sum up, it is the bounden duty of each of us to protect the ecological environment.

1.Soil erosion is severe.

2.There is a lack of oxygen**, and there is also a lack of natural filters.

3.The ecological environment has been forcibly occupied, and the laws of the ecological cycle have been destroyed.

4.The temperature can change, causing an unstable change in the climate.

5.The waste from the trees is burned after they are cut down, causing environmental pollution6Dust storm.

serious, less natural protective walls.

Forests play an irreplaceable role in the history of human existence and development, and are known as the lungs of the earth, which can absorb a large amount of carbon dioxide.

Oxygen is constantly being produced for humans and other living beings. Forests are "oxygen manufacturing plants", "dust filters", "natural reservoirs", and "natural air conditioners" ......The benefits of the forest are endless! Forests are also the foundation for the sustained, rapid and healthy development of the entire national economy, and it has an irreplaceable position and role in the country's economic construction.

With the indiscriminate felling of trees, forests have been set up as protected areas in our country. But forests are constantly under the threat of fire, which can wipe out precious natural resources! Fire can cause people to lose their precious lives!

How much human civilization there is.

Disappear in the fire? How many precious treasures were lost in the fire? China's forest resources are unevenly distributed, mainly in the northeast and southwest.

The forest quality is not high, and the forest age structure is dominated by young forests, middle-aged forests and plantations. As of 1993, China had 3,943 billion mu of forestry land and 2,006 billion mu of forest, with a forest coverage rate.

up to 13 92 ; The volume of live standing timber and livestock is 11,785 billion cubic meters, and the forest volume is 10,137 billion cubic meters, ranking fifth in the world. By June 1995, the total forest area of the country had reached 13.4 billion hectares, of which more than 33 million hectares were preserved by artificial afforestation, ranking first in the world. In March 1998, according to the latest World Forest Resources Assessment report released by the Food and Agriculture Organization of the United Nations, China's forest area was 13.4 billion hectares, accounting for 3.9 percent of the world's total forest area, ranking fifth in the world, and Chinese's per capita forest area ranked only 119th.

China's total forest stock is 9.78 billion cubic meters, accounting for 2.5 percent of the world's total forest stock, ranking eighth in the world. The per capita forest stock in the world is 71.8 cubic meters, while the per capita forest stock in Chinese is only 8.6 cubic meters.

Hazards: 1) Destruction of primary forest resources; 2) Failure to conserve water sources, resulting in a decrease in river flow; 3) the damage of drought and flood increases; 4) increased soil erosion; 5) Artificial exploitation of land after indiscriminate felling, resulting in the accumulation of harmful components such as herbicides and fertilizers, polluting water quality, and having long-term potential harm.