道路绿化,在我们这个森林覆被率只有12％、烧柴用材紧缺的国家,是一项值得大力倡导、大有可为的事业。道路绿化之可为,首先在于行道树能改变道路的自然景观,美化环境,降低噪声,减少尘埃,净化空气,保护路基,便利交通,为维护自然生态发挥积极的作用。据科学家们测定,一公里的阔叶行道树林带相当 Road greening, in our country with a forest cover rate of only 12%, the country with a shortage of firewood is a worthy advocate and a promising undertaking. First of all, greening roads can change the natural landscape of roads, beautify the environment, reduce noise, reduce dust, purify air, protect subgrade, facilitate traffic and play an active role in maintaining natural ecology. According to the scientists’ determination, one kilometer of broad-leaved tree forest belt is quite equal