社会公平视角下超大城市公共绿地可达性综合测度研究——以成都市中心城区为例

Study on Comprehensive Measurement of Public Green Space Accessibility in Megacity from the Perspective of Social Equity:With the Central Urban Area of Chengdu as an Example

快速城镇化所导致的公共绿地游憩服务供需不匹配、不均衡等现实后果,引发学界深入探讨公共绿地配置的社会公平性问题。以超大城市成都市中心城区为例,立足社会公平的价值立场,融入生活圈建设的关键性思考,从“供给-出行-需求”三方面测度公共绿地可达性,并综合分析其对应社区生活圈的层级分配关系,以及与不同社会群体空间分布的相关性。研究显示,成都市中心城区公共绿地配置的社会公平状况总体良好;中心城区各社区生活圈的公共绿地可达性水平相当;从中心城区全域尺度看,社会公平视角下公共绿地可达性具有明显的“核心-边缘”结构。研究揭示了公共绿地游憩供给空间不均衡与需求空间分异的关系特征,进而更精细地评价公共绿地可达性所体现的社会公平性。基于此,提出应将社会公平研究建立在“有限公平”的认知基础之上,未来应更关注公共绿地游憩服务的全域协调发展。

The practical consequences of the mismatch and imbalance between supply and demand of public green space recreation services caused by rapid urbanization have led to an in-depth discussion of the social equity of public green space allocation in the academic community.Taking the central urban area of Chengdu,one of the megacities,as an example,and based on the value position of social equity and the key consideration of life circle construction,this paper measures the accessibility of public green space from three aspects of"supply,traffic,and demand",and comprehensively analyzes the hierarchical distribution relationship of the corresponding community life circle and the correlation with the spatial distribution of different social groups.The study found that the social equity of public green space allocation in the central urban area of Chengdu is generally good.The accessibility level of public green space in the community life circle of the central city is equivalent.From the scale of the central urban area,the accessibility of public green space from the perspective of social equity has an obvious"core-periphery"structure.In this regard,this paper proposes to build social equity on the cognitive basis of the cognition of"conditional equity",and the research object focuses on urban public green space which has a more obvious and important impact on social equity.