基于低影响开发的绿色基础设施的植物选择

绿色基础设施作为城市建设生态支撑体系的可持续发展途径,近20年来在欧美国家的不断研究与实践,取得了大量的成果。低影响开发的绿色基础设施对于解决城市雨洪问题有很好的效果,而合适的植物选择正是低影响开发的绿色基础设施中较薄弱的环节。本文以中小尺度的绿色基础设施中植物的选择为切入点点,运用低影响、低成本、低技术的规划设计理念对绿色基础设施进行构建,针对绿色屋顶、生物滞留设施、植被浅沟、嵌草砖及雨水湿地五种不同类型的低影响绿色基础设施自身的条件,选择最为合适的植物,使绿色基础设施的构建能以较少的投入获得较大的效益,实现城乡生态可持续的发展,进而提升城市土地的生态服务功能。

Plants selection in green infrastructure on the basis of low impact development

Green infrastructure is a way of supporting urban sustainable development. It has been studied in European and American countries in past 20 years,and many achievements have been made. GI of low impact is a good way to solve the problem of stormwater in the city, and selecting right plants for the GI is very important. In this article, we start at selecting the plants for GI in small scale, using the method of low impact, low cost, low technique for the GI construction. We use diverse plants for various types of GI, that is green roof, bio--retention facilities, vegetation shallow groove, embedded grass brick and the rain wetland. In this way, we can finally build the network of GI. In general, great benefit will be achieved with low cost in a sustainable urban and the ecosystem services of urban land will be thus improved.