随着工业化进程的日益加快,自然生态环境也日趋恶化,城市绿化,特别是城市中的工厂绿化作用日趋明显。位于城市中的工厂,大多是建厂时间较长的老厂,其建筑格局已定。在厂区绿化空地有限的情况下,如何进一步提高绿化覆盖率,降低工厂对城市的污染呢? With the accelerating process of industrialization, the natural ecological environment is also deteriorating day by day. Urban greening, especially greening of factories in cities, has become increasingly evident. Factories located in the cities are mostly older factories with a longer construction time, and the construction pattern has been set. How to further improve the green coverage rate and reduce the factory’s pollution to the cities under the circumstance of limited green space in the factory?