众所周知，改善城市环境的最有效办法是城市建设与城市绿化同步。然而按照环境专家的观点，只有当城市的绿化面积达到40％以上时，植被才能真正起到消除大部分污染物，保护城市环境的作用。但是在城市化进程日益加快的今天，在寸土寸金的城市里，拿出近一半的土地来种植花草树? As we all know, the most effective way to improve the urban environment is to synchronize urban construction with urban greening. However, according to environmental experts, only when the greening area of ​​the city reaches more than 40% can vegetation really play a role in eliminating most of the pollutants and protecting the urban environment. However, in the process of accelerating urbanization, in the heavily-funded cities, nearly half of the land is used to plant flowers and trees.