城市功能空间对绿地格局作用效应的地理探测——以南京为例

Geographical Detection of the Effect of Urban Functional Space on Green Space Pattern: A Case Study of Nanjing

深入认知城市功能空间对绿地格局的作用效应,是促进绿地与城市空间高效协同发展的基础。基于15min生活圈尺度单元,利用规划与国土部门土地利用数据,揭示2004、2012、2017年南京绿地格局特征,重点对城市功能空间的作用效应进行地理探测分析。结果表明:1)城市绿地呈现出极化、扩散、均衡的分布特征与演变趋势;2)交通与居住功能深刻影响了绿地发展格局,呈强作用、弱带动特点,水域空间协同可激发绿地增长;3)城市生活服务化转型协同强化了功能空间与绿地的互作效应,生产功能退化为绿地增长腾挪了空间。相关规律可望深化绿地与城市功能空间的耦合理论,为城市空间绿色生态转型发展提供依据与参考。

Scientific understanding of the mechanism of urban functional space on green space pattern is the basis for promoting the efficient and coordinated development of green space and city. Using the land use data of the planning and land use departments, based on the 15-minute life circle scale unit, this paper reveals the characteristics of Nanjing’s green space pattern in 2004, 2012 and 2017, and focuses on the spatial effect and mechanism of urban function. The results show that: 1) The distribution characteristics and evolution trend of green space are polarization, diffusion and equilibrium;2) Traffic and residential functions have a profound impact on the development pattern of green space, showing a strong role and weak driving characteristics, water space coordination can stimulate the growth of green space;3) The transformation of urban life service strengthens the interaction between functional space and green space. The degradation of production function makes room for the growth of green space. The relevant laws can deepen the coupling theory of urban functional space and green space, and provide basis and reference for urban space optimization and ecological transformation development.