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甘肃的公路约三分之二分布于干旱地区(年降水量在500公厘以下),解放前公路两旁植树的成活率仅及40％左右,有的地段只达1％或数年不活一株,在道工中流行着“年年植树树木不活”的说法。解放后由于党和政府的重视,养路员工积极试验改进,结果在过去不活树的地方,达到高度的成活率,如兰州分段,在西兰公路992—996公里间,1953年植树2,100株成活率达98％;武威分段,1956年在甘新公路16公区戈壁滩上植树,几乎全部成活,枝叶长的茁壮;安西分段在向来没有长过一株树的戈壁滩上植树891株,成活88％,受到当地政府“集体植树模范”的奖励。兹将甘肃干旱地区种植杨、柳树(该省十分之九的行道树为杨、柳)的经验叙述如下:
About two-thirds of the roads in Gansu are distributed in arid regions (with an annual rainfall of 500 mm or less). Only 40% of the trees are planted on both sides of the road before liberation. In some areas, only 1% Strain, in the popular Taoist “tree planting trees do not live” argument. After the liberation, due to the importance attached by the party and the government, road maintenance workers actively tested and improved. As a result, they had achieved a high survival rate in areas where the trees were not viable. For example, in Lanzhou, there were 2,100 trees planted in 1953 between 992 and 996 km on the western highway, Survival rate of 98%; Wuwei segmentation, in 1956 in Gansu-Gansu 16 road Gobi planting trees, almost all survived, the branches and leaves grow strong; Anxi sub-segment has never been planted in a tree Gobi beach 891 Strain, survived 88%, by the local government “collective tree planting model” award. The experiences of growing poplar and willow trees in arid areas of Gansu (nine tenths of the province’s road trees are poplar and willow) are as follows: