Tell me about the reasons and dangers of cutting down trees, about 200--300 words.

Severe water and soil erosion

Lack of oxygen supply and natural filters.

The ecological environment has been usurped, and the laws of ecological cycles have been destroyed.

The temperature will change, causing unstable changes in the climate.

After felling, the waste from trees will be burned, causing environmental pollution.

Forests are carbon dioxide processing plants. They absorb carbon dioxide and release carbon dioxide that is helpful to people. oxygen. The reduction of forests will inevitably lead to a reduction in oxygen supply. Nowadays, the amount of oxygen consumed by humans and human activities is increasing, so the reduction of forests will make people's lives difficult. Then there are the natural disasters caused by forest reduction, such as sandstorms, mudslides and other natural disasters that endanger people's health and lives. In addition, the forest is a good place to escape the heat. At the same time, the forest can also lower the temperature of the air. The loss of forests will exacerbate the greenhouse effect.

Among the people in the world who use firewood as fuel, farmers in our country account for about half. Due to large-scale deforestation, there is a widespread shortage of firewood in rural areas of my country. This situation causes farmers to use all organic matter energy sources, such as straw, straw, wormwood, etc., as firewood. The organic matter cannot be returned to the fields and soil conditions deteriorate. , destroying the rural ecological balance. In arid areas, excessive felling can easily lead to desertification. Plants in arid and desert areas grow slowly. For example, in Qaidam, Qinghai, an ephedra plant with a diameter of 6 cm takes 50 to 60 years to grow. Once these trees are felled, it is difficult to recover, and even It has since become a desert or Gobi. However, due to the increasing demand for fuelwood due to population development, the number of deforestation has continued unabated. Many naturally drought-resistant and cold-resistant plants in arid desert areas are being depleted or even extinct at an alarming rate. Many areas in the northwest are rapidly becoming desertified. , if this phenomenon is not stopped, the consequences will be disastrous.