对于城市绿化 ,人们习惯从“美化”的立场考虑 ,它的更重要的功能反而被忽略了 ,以至于城市绿化成了种树、种花草 ,使单调的城市建筑添些色彩 ,以赏心悦目。在引进欧洲几何型园林设计的指导思想以后 ,我国城市绿化更多地着眼于小和巧 ,形制也更多地偏向低矮化 ,表现为淘汰杨树 For urban greening, people accustomed from the “beautification” position, but its more important function has been neglected, so that the urban greening has become a species of trees, flowers, monotonous urban architecture to add some color, to pleasing. After the introduction of the guiding ideology of European geometric garden design, the urban greening in our country focuses more on the small and the clever, and the forms tend to be more dwarfed, showing the poplar