大都市绿色屋顶策略生成与实践创新研究--以伦敦为例

Research on the Background and Implementation Innovation of the Living Roof Strategy in Metropolis:a Case Study of London

绿色屋顶作为拥有高人口密集度与流动性的大都市增加城市绿地面积的重要途径,在城市气候变化应对背景下具有重要的推广意义和价值。伦敦作为具有代表性的大都市之一,在多项国家政策目标指引下于2008年首次将绿色屋顶策略正式引入地方规划法案,并提出建设具有可达性、适应缓解气候变化、促进可持续城市排水、增加生物多样性、改善建筑外观的五项绿色屋顶策略目标,市域范围内的策略实施以公众普及策略报告、政府联合民间组织施工种类细化与成果公示为主体环节。对伦敦绿色屋顶策略进程中不同层面的政策目标引入与策略实施细化推广进行研究,总结其以绿色屋顶作为国家政策与地区规划目标的落实方式、分类型多功能强化城市绿网建设、实施成果使用GIS可视化方法的特点,为大都市绿色空间建设提供另一角度策略实施参考。

As an important way to increase urban green space area in metropolises with high population density and mobility,green roofs have important promotion signifi-cance and value in the context of addressing urban climate change.London as one of the typical metropolis,in many national policy goals for the first time in 2008 will be green roof strategy under the guidance of the formal introduction of local planning legislation,and put forward the construc-tion of accessibility,to adapt to climate change mitigation,and promote sustainable urban drainage,increase biodi-versity,improve five green roof of building exterior policy target,The implementation of the strategy within the scope of the city is based on the public popularization strategy report,the elaboration of the construction types of the gov-ernment and non-governmental organizations and the pub-licity of the results.Green roofs of London strategy policy objectives in different levels in the process of introducing and strategy implement detailed promotion,summarizes its green roofs as district planning objectives for the im-plementation of national policies and methods,points type multifunctional strengthen urban green network construc-tion,the implementation of the results using the features of the GIS visualization methods,for the city green space construction provides a reference point of strategy imple-mentation.