屋顶绿化研究现状与展望

生态环境问题是我国城市化进程中城市所面临的一个重要问题。在城市土地资源紧缺的不利条件下，屋顶绿化是城市绿色基础设施建设的有效途径之一。文中在介绍屋顶绿化的产生和发展的基础上，重点对屋顶绿化中的栽种植物、培养基质和生态效应评价3个方面的研究工作进行了综述；同时阐明我国屋顶绿化技术在推广中存在的主要问题是缺乏有效的约束性政策支持、有力的技术标准支持以及基础研究与工程实践脱节；提出今后我国屋顶绿化应重点开展屋顶绿化生态效益定量化评价、粗放型屋顶绿化植物选育与栽培基质研发、屋顶绿化激励政策的机制探索3个方面的研究工作。

Research on Green Roofs: Progress and Prospect

Ecological environment is one of the main issues faced by cities in China in its process of urbanization. Under the unfavorable condition of urban land resources shortage, roof greening is one of the effective ways to build urban green infrastructure. On the basis of introducing the emergence and development of roof greening, this paper reviews the research progress in roofs greening from the 3 aspects of plants used, culture medium and ecological benefits evaluation, and clarifies the main problem in the popularization of roof greening technology in China, which are the lack of effective policy support, lack of strong technical standard support and disconnection between basic research and engineering practices. At the end, it is proposed that the future research should focus on the quantitative ecological benefits evaluation of roof greening, the extensive roof greening plants breeding and cultivation substrates development, and the mechanism exploration for incentive policies on roof greening.