基于分层思想的城市公园有机更新模式探讨——以上海黄兴公园改造方案为例

在城市公园更新实践中,其功能的提升与保存历史文化信息、保护生态环境之间的协调操作是一个技术难题。笔者基于分层思想,分析了当前城市公园更新模式对公园历史文化及生态环境的破坏机制,探讨了通过设置基底层、保护层和拓展层对城市公园各历史分层进行统筹规划的策略,形成了一种以分层思想为指导的城市公园有机更新模式:将城市公园各历史分层具有历史文化、生态及使用功能价值的部分视为一个连续开放的整体,划入基底层、保护层; 以拓展层提升城市公园的整体功能,使之适应新的发展。最后,以黄兴公园的改造设计方案说明这种模式的应用过程。

Organic renewal model for city park based on hierarchical thinking: a case study of the transformation program in Shanghai Huangxing Park

During the practices of renewal in city parks, it is technically difficult to coordinate the relationship between protection of history, cultural information, eco-environment and park enhancements. Based on hierarchical idea, this paper analyses the harm of current renewal models to the history, culture and eco-environment in city parks. The basic layer, the protective layer and the expanded layer were set to be different historical stratifications among overall-planning strategy, which forms a kind of organic renewal model for city park based on hierarchical idea. The parts with the value of history, culture, ecology and function among different history stratifications in parks are divided into the open and continuous basic layer and the protective layer. The expanded layer can be employed to enhance the overall-function in the park in order to adapt to new developments. Finally, this application is described through the case study of the transformation in Shanghai Huangxing Park.