绿道系统引导城市形态持续性发展的机制——以美国夏洛特大都市区为例

Mechanism of Sustainable Development of Urban Form Guided by Greenway System:A Case Study of Charlotte Metropolitan Region,USA

绿道系统作为多尺度多用途的绿色基础设施网络,已成为引导城市形态紧凑化发展的重要途径,也是促进城市健康发展的重要空间载体。当前中国城市绿道系统的规划和管理仍处于探索阶段,亟须借鉴国际城市绿道系统规划和建设的成功路径。对绿道发展历程进行回顾,以美国东南部有重要影响力的夏洛特大都市区为例,系统解析绿道系统引导城市形态持续性发展的规划策略和实现路径,总结其在优化城市空间结构、促进健康城市生活方式、改善生态环境等方面的多重效益,以期为当前中国绿道系统的持续性规划建设过程提供整体性和先导性保障的策略借鉴,并为绿道系统引导城市形态精明增长和健康发展提供路径支撑。

As a multi-scale and multi-purpose green infrastructure network,the greenway system has become an important approach to guide compact development of urban form and a major space carrier to promote healthy development of cities.At present,the planning and management of urban greenway system is still in the exploration stage in China,and needs to learn from the successful paths of international urban greenway system planning and construction.Following a brief review of greenway development,this research focuses on the influential greenway system construction project in Charlotte Metropolitan Region in the southeast of U.S.for an in-depth case study.It systematically analyzes the planning strategy and implementation approach of the greenway system that has facilitated sustainable development of urban form,and summarizes the multiple benefits in optimizing the spatial structure,promoting healthy urban lifestyle,and improving ecological environment.It aims to provide integrated and pioneering strategies for the sustainable planning and construction process of greenway system in China.The development path provided for the greenway system will be helpful to guide the smart growth and healthy development of urban morphology.