March 12 is the annual Arbor Day. It is a festival for the people of the world. On this day, everyone can participate in tree planting. Whether the tree is transplanted or planted, whether it is planted or planted, it always represents our recognition of tree planting activities and the planting of trees. The importance attached.

Afforestation can reduce noise. The noise is below 50 decibels, which does not have much impact on people. However, when the noise reaches 70 decibels, it will obviously harm people. If the noise exceeds 90 decibels, people cannot work long-term. At present, there are many cities in our country that have a noise level of more than 70 decibels, and afforestation can reduce the noise. For example, if we walk around in groups of parks around the trees, we will feel quiet around us.

Afforestation also plays a role in preventing wind and sand, controlling climate, reducing soil erosion, and maintaining ecological balance. To give a simple example, during the winter season, the northwest wind prevails in the inland regions of China. That is to say, in the case of uneven distribution of hot and cold air, the air always flows from places with high pressure to places with low atmospheric pressure. It formed a wind. Inland Asia is hot and dry in winter and forms high pressure. Therefore, the wind in our country always flows to the southeast coastal areas in the inland areas of the northwest. We all know that we have a lot of deserts in Inner Mongolia, so the wind blowing from the northwest has a lot of silt, but if we use rows of trees as protective belts in the northwest of many cities, we can reduce sediment in the wind. It can also reduce wind power so that over time, the environment in the city can be improved and controlled.

Trees are also automatic thermostats, natural dust collectors, oxygen plants, and bacteria sterilization stations. The shade of trees in the summer is much lower than the temperature outside, and it is possible to avoid the heat. In winter, it is higher than the outside temperature. There are many tiny hairs and mucus on the leaves that can absorb harmful particles such as carbon and sulfides in the smoke, as well as harmful substances such as germs and viruses. The leaves of green plants can also absorb carbon dioxide and release oxygen through photosynthesis.

From this we can see that there are really amazing benefits to planting trees so that it can be promoted throughout the world. Even an event can be set as an annual festival. From here, it can also reflect the extent to which planting trees are valued globally.

Then, since the planting of trees is such a big role, we should also act together and join the ranks of planting trees together.