树木吸收二氧化碳释放氧气的作用已为人所共知。据测定:一亩阔叶树林,在生长季节里,大约每天能吸收133斤二氧化碳,释放出49斤氧气。10平方米的森林面积可以供给一个人所需要的新鲜氧气和消耗掉这个人所排泄出来的全部二氧化碳。所以,常有“树林里空气新鲜”之说。但是,林木作用远非如此。大家知道,大气是整个生物界依赖生存的条件。没有氧气人类就不能存在;没有氧和二氧化碳庄稼就会死亡。可是,在 The role of trees to release carbon dioxide to release oxygen is well known. It is measured: a mu of broad-leaved forests, in the growing season, about a day can absorb 133 kg of carbon dioxide, releasing 49 kg of oxygen. The 10-square-meter forest area supplies the fresh oxygen a person needs and consumes all the carbon dioxide excreted by that person. Therefore, often “fresh air in the woods,” said. However, the role of trees is far from it. As we all know, the atmosphere is dependent on the living conditions of the entire biological world. No human being can live without oxygen; deaths can occur without oxygen and carbon dioxide crops. However, at