随着城市化快速推进,“水泥森林”日益密集,生态环境恶化、热岛效应严重、极端恶劣天气增加等,日渐成为很多城市可持续发展中面临的突出问题。然而,更为棘手的是如何尽快修复城市生态,似乎并没有太多办法:城市规划绿地以及城市道路沿线、街头空地、市政公用土地、单位周边等,进行“见缝插绿”之后,其绿化已达到近乎“饱和”的状态,靠大量拆迁重建绿地,“此路不通”;靠多占地搞常规绿化,因土地资源过度消耗日趋紧张更不实际;随着城镇化 With the rapid urbanization, increasingly dense cement forests, deteriorating ecological environment, severe heat island effect and extreme weather increase, it has become an outstanding problem in many cities’ sustainable development. However, what is more tricky is how to repair the urban ecology as soon as possible. However, it seems that there are not many solutions to this problem: after the green space in urban planning and along the urban roads, open spaces on the streets, municipal public lands and the periphery of the units, etc., Its greening has reached the state of almost “saturation”, rely on a large number of demolition and reconstruction of green space, “this road does not pass”; rely on more land to engage in conventional greening, due to land resource over-consumption of increasingly tense and impractical; with urbanization