绿网城市理论及其实践引导研究

‘Green-network city’ in this project is to build a city spatial pattern, based on embedded public greenbelt networks of specific width intertwined with the city road during new area planning and existing district retrofitting. Well designed green networks will offer “sponge city” functionality, meaning it can not only maintain the conventional functions of urban municipal pipe networks, but also offer solutions to tackle surrounding non-point source rainwater flood. As a new theory, it will face a variety of problems, fixed-point experimental methods will be adopted to win recognition and gain spaces for further development, which means to ‘make use of the experience of selected units to promote work in the entire area’ . The subject has gained a huge support from Administrative Committee of the Wuhan East Lake Hi-Tech Development Zone and clarified the ‘Theory intuition—Practice oriented—Unity of knowledge and action—First try first’ development principles , a practical and prominent operating framework is provided as following: Conceptualizing, Value input, Theory construction, Experiment leading, Policy oriented. Active creation of universal valued green-network is obviously different from passive submission of Eco-city and GI network. The city center oriented green-network and suburban oriented GI are different in existence space, scale, function, service object, etc. It can contribute to rainstorm disaster mitigation, low carbon construction, pedestrian-and-vehicle dividing city construction, economic benefits generation of municipal engineering maintenance and reconstruction in China. The study has distinctive humanism theory and ideological characteristics for its responding to the party, crossing together, people oriented and universal valued.

绿网城市是本课题提出的在城市新区规划或老区改造中植入一定宽度且与城市道路错位交织的公共绿网而构筑的城市空间格局。该绿网不仅需承载市政管网，还需作为周边雨水面源受体而具海绵城市功效。作为新理论需面对的问题会很多，故课题采取定点实验方式，冀望“以点窥面”以争取认同而后获发展空间。课题得到武汉东湖高新区支持并明确“理论直观、面向实务，知行合一、先行先试”的研发原则，由此形成“提出设想——理论嫁接——理论建构——实验引导——政策引导”的接地而又务实的操作思路。课题对普世价值之绿网的主动创造与生态城市、GI网络的被动屈从明显不同，也因立足中心城区而与面向城郊之GI存在空间、尺度、功能、服务对象等的重大差异。研究不仅对保障城市雨洪安全，建设低碳、人车分流城市有重要意义，且对我国市政工程维护与改造还有重要经济价值。同时课题还因响应党政、交叉融汇、以人为本、价值普世而具有鲜明的时代、人本、理论与思想特色。

本课题是在我国生态文明国策、新型城镇化、开放式街区改造、低碳城市、海绵城市背景下提出的创新性城乡规划设计理论。主要研究内容包括:(1)绿网城市理论及其理想单元的模型构建研究；（2）存量空间的开放式改造运用研究；（3）平原增量空间的规划设计运用研究；（4）丘陵山地增量空间规划设计运用研究。并取得以下重要成果（1）系统性构建了绿网城市理论系统并制作了一台空间实体模型；（2）以武汉光谷金地社区、华中科技大学校园为例进行了开放式街区改造示范；（3）以获嘉花木特色小镇为例进行了平原地区增量空间的理论运用示范；（4）以襄阳尹集文教特色小镇、信阳高铁新城为例进行了理论的丘陵山地适宜性示范，其中襄阳尹集文教特色小镇城市设计得到成果转化。上述研究工作揭示了绿网城市理论宽广的示范运用空间，对生态文明为主导的我国新型城镇化具有重要的推广应用价值。