The composition of motto afforestation

Chapter 1: The advantage of afforestation is to green the motherland, that is, to carry out afforestation activities and cover the country with green plants. Afforestation has many benefits!

First, afforestation can prevent wind and fix sand. Every time the wind blows and the sand flies, people who have to go out are like fish struggling in stormy waves. People who follow the trend can't help but fly forward, their legs go forward against the wind and their bodies fall back, which makes people miserable. In order to resist the attack of sandstorm, we must plant trees vigorously to prevent wind and fix sand.

Secondly, afforestation can provide many valuable resources. Wood is the main product of forest, which can be used for building houses, building bridges and making paper. Wood can also be used as tools, furniture, handicrafts and other daily necessities. There are edible aspects, such as sweet and sour fruits, butter tea, high-grade medicinal materials and so on. In short, it played a great role.

Third, afforestation can eliminate air pollution and beautify the environment. These "environmental guards" such as dust and carbon dioxide we absorb every day have played an inestimable role in purifying the air and ensuring people's physical and mental health.

In addition, afforestation can also prevent soil erosion, reduce noise, protect ecological balance, and provide people with an ideal place for study, work, entertainment and life.

Forests are indeed people's loyal friends, but now, forests are disappearing rapidly, which has become a major concern for us. So afforestation has become a top priority!

We want to plant trees, and we want to green the motherland!

Chapter 2: Afforestation and Greening Environment Arbor Festival. Our school is going to plant trees in the countryside. Will you go? As soon as I heard about planting trees, I immediately said, "OK, I'll go too!" " Then I hurried to school with my mother.

Arriving at the school gate, my mother bought me some food and drinks, and then set off. On the bus, Wang Biao and I sat together. We looked at the scenery and thought about how to plant trees.

Unconsciously, we have arrived at that place. Wang Biao and I practice digging holes first. We dug for several minutes before we dug a small hole. Alas! It seems that we are not suitable for digging holes. We thought hard and finally came up with a way: planting saplings. At this time, tree planting activities began. I was in a hurry with an uncle. He dug a hole and I planted saplings. After planting for a while, I was sweating profusely, but I didn't feel tired. Unconsciously, it was already half past ten, and Wang Biao and I each planted twenty-one trees.

I started giving subsidies. I didn't expect that we both had children, and we were still like adults. My mother told me that we plant trees here to green the environment. It doesn't matter whether we have money or not. Like these saplings, you should be the pillar of the country!

The trees in mom's school have been planted, but the trees in our school have not been planted. So we went to help. Wang Biao and I earn money to plant saplings. I plant one and he plants one; I planted two, he planted two ... and finally we tied again: eleven kinds of all kinds.

Time to go. The reporter and my PE teacher also took two photos of Wang Biao and me. My ideal grows with Xiaoshu, and I will surely become the pillar of the country!

Chapter III: Planting Trees and Protecting the Environment In recent years, extreme weather conditions have appeared all over the world. Some countries have experienced floods, some countries have experienced a once-in-a-century drought, and some countries have experienced mudslides, landslides and various terrible natural disasters, all of which are caused by human destruction of the environment. So now people pay more attention to environmental protection. As for me, I also start from the small things around me and be an environmental citizen.

March 12 is Arbor Day every year. On this day, I always take part in the afforestation activities organized by the Bureau of Landscape Architecture. Early in the morning, we came to the zoo and received a small sapling belonging to me. After coming to the planting area, my parents and I each took a shovel and dug up the soil one by one. Soon, we dug a big and deep pit. Then, we put the saplings gently in the pit together, for fear of hurting them. Mom holds the saplings in both hands, and my father and I take shovels and shovel the dug soil one by one. Fill it in for a while, step on it, step on the soil. So, we did it several times. Our saplings can finally stand there, just like sentinels on the grassland, so heroic and lovely! Finally, let me water the sapling so that it can absorb nutrients and grow quickly.

Looking at my sapling, although I feel very tired, I am proud, I am proud! Because I added a green hair to Mother Earth. In the future, my sapling will grow into a big tree, which will protect Mother Earth and make her younger and more beautiful! Let our air be fresher and the environment more beautiful!

Chapter 4: Afforestation has many benefits. First of all, afforestation can purify the air. During the growth of trees, due to photosynthesis, they can absorb a lot of harmful gases such as carbon dioxide, thus purifying the air. According to scientists' calculations, the trees on the earth. Grassland processes 20 billion tons of waste gas for human beings every year.

In today's industrialized era, when mankind is proud of the advent of high-tech products, a silent disaster is quietly hanging over the earth. This is the environmental problem. The most effective way to solve this problem now is to plant trees.

Indeed, afforestation has many benefits.

First of all, afforestation can purify the air. During the growth of trees, due to photosynthesis, they can absorb a lot of harmful gases such as carbon dioxide, thus purifying the air. According to scientists' calculations, the trees on the earth. Grassland processes 20 billion tons of waste gas for human beings every year. Sometimes a blowhole can suck in 2.5 trillion carbon dioxide molecules a second, and the number can be imagined.

Secondly, afforestation can prevent wind and fix sand.

(1) Planting shelterbelts can resist sandstorms. The main function of shelter forest is to reduce wind power. When the wind meets the shelterbelt, its speed will be reduced by 70%-80%.

(2) is to cultivate turf. With the lawn covering the ground, even if there is wind, not much sand can be blown, which reduces the source of sand. It can be seen from these two points that afforestation plays an important role in preventing wind and fixing sand.

Third, afforestation can prevent soil erosion. Due to long-term reclamation in China, soil erosion is serious in some areas. It is estimated that if 20 cm thick topsoil is washed away by rain, it will take 570,000 to 50,000 years for woodland, 80,000 to 20,000 years for grassland, 46 years for cultivated land and 18 years for bare land. This shows that the lack of forest vegetation will aggravate soil erosion.

Afforestation can purify the air, protect the environment, prevent wind and fix sand. Since afforestation has so many benefits, we should plant trees to better build our home.

Chapter 5: About Afforestation In recent years, urban and rural areas have taken on a new look. It is green that has decorated the land of China, which is moving towards modern life. Nowadays, trees are lined with fragrant flowers and plants, beautifying people's lives and embellishing the living environment. Afforestation has many benefits, but what are the benefits?

First, afforestation can prevent wind and fix sand. People living in windy and sandy areas often get killed by strong winds in spring, so it is difficult for farmers to have a bumper harvest. It is said that people there have to have half a grain of sand in their mouths when they get up in the morning. It can be seen that its wind and sand are big. Many side-by-side forest belts can form shelter belts. In this way, when the wind comes, as long as it meets the shelter forest, the speed will be reduced by 70% to 80% due to the resistance brought by the shelter of trees. Therefore, the area in the shelter forest will not be disturbed by strong winds and can be used for normal production and life. Not only that, afforestation also has the benefit of preventing soil erosion. In summer, after a downpour, rain often brings soil into the river. The reason why the Yellow River has a lot of sediment and the riverbed is very high is that the rain washed the sediment on the Loess Plateau into the river, forming today's "Yellow River" for many years. If trees are planted in these places on a large scale, the soil can be fixed around the roots because the roots are deeply rooted in the soil and absorb groundwater. Why it is difficult for people to uproot a big tree is because the soil fixes the tree, and the forces are mutual, and the tree can also fix the soil. When it rains heavily, there is little sediment rushing into the river, and because of the shelter of trees, the rainwater will not evaporate too quickly, but will flow into the river or be absorbed by the roots. Really kill two birds with one stone: first, prevent soil erosion; The second is to prevent water loss; The third is to reduce the sediment concentration in the river. This is an effective way for human beings to conquer, transform and use nature.

Afforestation also has the function of purifying the air, which is especially important in busy cities. Now, with the development of industry, environmental pollution has increasingly become a topic of concern. Environmental pollution includes air pollution, water pollution, soil pollution, food pollution and noise. Planting trees can also play a great role in reducing air pollution and noise. Green leaves can carry out photosynthesis, and chloroplasts in leaves can absorb carbon dioxide and water in the air, and release oxygen while producing starch. This exchange is really equal and mutually beneficial! Green leaves also have a certain absorption effect on other harmful waste gases. Sound exceeding 75 decibels is considered noise. Green leaves also absorb sound waves, so they can effectively reduce noise.

In the vast forest, there are many lovely lives. This tells us that large-scale afforestation is also conducive to maintaining ecological balance. Birds need blue sky and forest. They want to make their home there. Without forests, many animals can't live. They had to live freely in the forest and die by themselves. Natural selection is an irrefutable truth, so as to truly maintain the ecological balance. And afforestation just provides them with a paradise, and perhaps "rare animals" will become a historical term in the future. (junior high school composition)

Afforestation has many benefits. Green trees and red flowers can beautify the environment, green can give people vitality and make people progress, and flowers can make the world colorful. As for the direct economic benefits of wood, it is the' harvest' of planting trees. In short, afforestation can make life better!

Chapter 6: Afforestation Spring is coming, spring is coming, and afforestation is good.

Chun, it's coming. Earth, wake up. Everywhere is full of vitality. Young pioneers came to the mountain with saplings, shovels and buckets in their hands, ready to plant trees. They dug the pit first, then planted the seedlings in the pit and watered them to keep them moist. Everyone is in full swing and tired, but they don't complain. The barren hills and mountains that the Young Pioneers walked through have now become green mountains and green waters, and the places that the Young Pioneers walked through have now become a green world.

Small animals come here to live happily, and birds come here to nest with colorful wings. When squirrels have a home, they will sing happily. Rabbits and monkeys deeply thank the Young Pioneers for their contributions to nature.

The mountains and rivers are magnificent, no longer roaring, and the clear rivers are used to repay the fruitful orchards.

The exposed peaks of the Millennium have ended the suffering of the scorching sun, and the barren hills that have been silent for many years are now flourishing. The wind is blowing and there are bursts of Lin Tao.

Green mountains and green waters, lush foliage! Ah! Green! Ah! Forest! May it be green, and may the forest dye the whole land of China green!

Chapter VII: Significance of Afforestation Afforestation can conserve water and soil. In places with low vegetation coverage, a large amount of sediment will flow into the river in rainy season, destroying fields, filling the river bed and blocking the estuary, which is extremely harmful. To curb soil erosion, we must plant trees, because the roots of trees are as big as crowns and can hold the soil as firmly as giant hands. The water in the captured soil is continuously absorbed and stored by the roots. According to statistics, an acre of forest stores 20 tons more water than no forest area.

Afforestation can prevent wind and fix sand.

Wherever the sandstorm blows, the countryside is buried and the city becomes ruins. In order to resist the attack of sandstorm, it is necessary to build shelterbelts to weaken the wind. Once the wind meets the shelter forest, the speed will be reduced by 70%~80%. If many forest belts are arranged in parallel at a certain distance and grass is planted, the sand blown by wind energy will be reduced.

Afforestation can purify the air for human beings.

We know that people inhale oxygen and exhale carbon dioxide every day. Trees are just the opposite. Their leaves constantly carry out photosynthesis in the sun, inhaling carbon dioxide and releasing oxygen. According to statistics, an acre of forest can absorb 67 kilograms of carbon dioxide and release 49 kilograms of oxygen every day, which is enough for 65 adults to breathe.

Planting trees can eliminate pollution.

Trees can stick dust in the air and make the air fresh. Scientific tests show that one acre of forest can absorb 4 kilograms of toxic gas sulfur dioxide a month and 20-60 tons of dust a year. One acre of pine forest can secrete 2 kilograms of bactericide for two days and nights, which can kill bacteria such as tuberculosis, typhoid fever, diphtheria and dysentery.

Afforestation can reduce noise pollution

Planting trees on both sides of the road can reduce noise, and various trees, flowers and green branches and leaves can beautify the environment and provide an ideal environment for people to study, work and live.

Afforestation provides many useful raw materials and materials.

In terms of eating, there are all kinds of sweet and delicious fruits; Fragrant tea; There are also nourishing Ligustrum lucidum on the holly tree, delicious ginkgo and other precious medicinal materials. As far as uses are concerned, wood is needed for construction, coal mining, transportation, manufacturing vehicles, ships, ruler machines, bridge building, docks, paper making, etc.

Although what I am doing now is only a small matter, I firmly believe that if we all have the responsibility to protect the environment, starting from ourselves and starting from small things, and working together to protect our homeland, we will naturally give humanity its due return. Take a nap on the warm cradle grassland; Grow up under the kind smiling face sky and bathe in the river where love comes from!