一些国家公路两旁多栽果树,每年收入相当可观,经济效益和社会效益都很好。而我国公路两旁多栽杨树,杨树木质不佳,实用价值不大。如果有计划地改栽果树,对整个国民收入将有很大提高,对美化环境和精神文明建设均有好处。公路两旁栽果树,可大大增加果树种植面积,节省用良田种果树,增加国民收入。前几年,烟台地区 In some countries, planting more fruit trees on both sides of the road brings about considerable annual income and good economic and social benefits. However, there are many poplar trees on both sides of the highway in our country, and the poplar has poor wood quality, which is of little practical value. If the planted planted fruit trees are rebuilt, the income of the entire nationals will be greatly increased, which is good for the beautification of the environment and the construction of spiritual civilization. Planting fruit trees on both sides of the road can greatly increase the planting area of ​​fruit trees, save fruit trees with good fields and increase national income. A few years ago, Yantai area