城市公园滨水空间形态与水体自净效能的关联耦合:上海梦清园的实证研究

Correlating Physical Forms of Riparian Zones in Urban Parks with Effective Eco-services Provision of Water Self-purifi cation: A Case Study of Shanghai Mengqing Park

水体自净作为水生态系统中最重要的生态服务之一,并未成为风景园林学科进行滨水空间形态营造的出发点,如何研判场地层面的滨水空间形态是否能有效地提供水体自净更是困难重重。通过构建"水体自净效能评价方法",对水体自净"实际效能"与"设计效能"评估和拟合分析比对,旨在厘清城市公园滨水空间与水体自净生态服务效能之间的关联耦合。选取上海梦清园进行实证研究,阐明二者的响应关系,揭示与水体自净高效能息息相关的滨水空间形态关键性因子,从而为城市公园滨水空间的规划设计、建设管理、后期维护提供参数及技术支撑。

The function of water self-purification is one of the most significant ecosystem services provided by the water ecosystem. However, it has not been recognized as a main concern in the landscape architecture discipline. How to assess the effectiveness of water self-purification that is provided by finer-scaled physical form is pretty difficult. This paper establishes an evaluation method to measure the provision of water self-purification. It compares and analyzes both monitoring capacity and design capacity of water self-purification and then aims to clarify the correlation of the physical form of riparian zones in urban parks with the provision of water self-purification. Taking Mengqing Park in Shanghai as an example, this study reveals the key parameters of physical forms that impact the provision of water self-purification. The findings of this study would support the planning, design, construction, management and maintenance of the riparian zones in urban parks.