描写城市绿化英语作文带翻译

描写城市绿化英语作文带翻译 描写城市绿化英语作文带翻译 　　Green, tree and grass planting. Growing these plants containing chloro

描写城市绿化英语作文带翻译 描写城市绿化英语作文带翻译 Green, tree and grass planting. Growing these plants containing chlorophyll, is of great help to improve air quality. First of all, the green plants can be in the sun for photosynthesis, absorb carbon dioxide and release oxygen. Studies show that plant growth and each 1ton, can produce 5 tons of oxygen. Per hectare woods can absorb one ton of carbon dioxide every day, 0.735 tons of oxygen; The grass can absorb every day 0.9 tonnes of carbon dioxide per hectare, produce 0.6 tons of oxygen. Adequate and clean oxygen can keep human body and mind health. Second, trees on earth every day can send out 170 million tons of terpenes substances into the atmosphere, the aromatic substance has inparable sterilization ability and excitation. Then, the green is good for the dust in the air, dust filtration and absorption, and dust into the air dispersion can stop work. Aording to the determination, the atmosphere through the forest, can reduce dust amount 32% -32%, fly ash quantity reduced by 30%. Do you know? The negative oxygen ion in forest can reach 10-1 million. Negative oxygen ion can adjust the excitement