I send you seeds, you make them flourish, I send you saplings, and you make them shady. Only those who love the motherland and human beings really know how to care for green, and only those who care for the grass and trees in front of them will love the mountains and rivers of the motherland. We teenagers should love every green leaf, every grass and flower. Protect the environment, green the campus, let green life activate our beloved life, and be a beautiful builder of the motherland.
March 12- arbor day, I hope every day is arbor day, let the slogan be implemented and let the green dye the earth. Today, as mankind moves towards 2 1 century, the earth is already overwhelmed and miserable, and human pollution and destruction to the environment are becoming more and more serious. Forest is the main body of terrestrial ecosystem. The most fundamental way to improve the ecological environment is to plant trees and grass and increase green vegetation. If the green project is not done well, there can be no good ecosystem. Therefore, afforestation is the goal of the whole world.
In fact, green plants are producers of primary organic substances. They can make use of solar energy and moisture and nutrients in the soil to produce organic matter, providing heterotrophs with necessary food, which is 10 ~ 30 times more than their own. Trees have the ability to regulate climate and maintain ecological balance. Trees make the air clean and fresh through photosynthesis, and one acre of trees releases enough oxygen for 65 people to breathe. Trees can not only purify the air, but also prevent wind and sand, conserve water and soil, and prevent soil erosion. They are also "dust killers". Trees on an acre of land can absorb 20-60 tons of dust a year! It is also their instinct to reduce noise pollution. A nine-meter-wide forest belt can reduce the noise pollution of 10- 15 decibels. The secretions of trees also have bactericidal effect. The forest contains 300 to 400 bacteria per cubic meter of air, while the open area contains 30,000 to 40,000 bacteria per cubic meter of air, with a difference of 100 times!
Green plants protect the earth and human beings. Let's plant trees together to green and beautify our living environment. Let's cherish green and plant trees together. Remember March12-Arbor Day.