基于“形态—网络—功能”的城市韧性评估方法——以十堰市中心城区为例

Assessment of Urban Resilience Based on the Perspective of"Form-Network-Function":A Case Study of the Central City of Shiyan

科学评估城市空间组织模式对城市韧性水平的影响,可以为国土空间规划中有效增强城市应对风险能力提供理论支撑。基于景观生态学与复杂网络理论,我们提出了“形态—网络—功能”的多维度城市韧性评估框架和定量计算方法。通过评估十堰市中心城区的4种土地利用情景的韧性水平,分析影响城市韧性水平的关键空间特征并提出相应规划对策。研究发现,各空间指标对韧性水平的影响是复杂非线性关系。不同情景下,要素间的组织模式与互动关系的差异影响韧性水平。研究结果表明,高生态连通性的城市空间形态、具有层级结构体系的城市道路网络、多模块协同的公共服务功能体系可以有效提升城市韧性水平。

In territorial spatial planning,assessing the impact of spatial characteristics of various elements on urban resilience can provide theoretical support for enhancing urban resilience effectively.Based on landscape ecology and complex network theory,a multi-dimensional urban resilience assessment framework and a quantitative method of"form-network-function"are proposed.By comparing the differences in the resilience levels of four land use scenarios in the central city of Shiyan,key spatial characteristics affecting the resilience level of the city are analyzed and corresponding planning countermeasures are proposed.It is found that the influence of each spatial indicator on the resilience level is a complex non-linear relationship,and the organization pattern and interaction between elements affect the resilience level of different scenarios.The research results suggest that urban spatial forms with high ecological connectivity,urban road networks with hierarchical structure systems,and multi-module synergistic public service function systems can effectively improve the level of urban resilience.