长江中游城市群城市更新与生态韧性空间关联网络及影响研究  

Spatial correlation network and impacts of urban renewal and ecological resilience in urban agglomerations in the middle reaches of the Yangtze River

作　　者：彭文斌 邝嫦娥[3] 李文意 狄亚轩 Peng Wenbin;Kuang Chang’e;Li Wenyi;Di Yaxuan(Hunan Institute of Economic Geography,Hunan University of Finance and Economics,Changsha 410205,Hunan,China;School of Economic Geography,Hunan University of Finance and Economics,Changsha 410205,Hunan,China;School of Business,Hunan University of Science and Technology,Xiangtan 411201,Hunan,China;School of Economics and Management,Southeast University,Nanjing 211189,Jiangsu,China)

机构地区：[1]湖南财政经济学院湖南省经济地理研究所,湖南长沙410205 [2]湖南财政经济学院经济地理学院,湖南长沙410205 [3]湖南科技大学商学院,湖南湘潭411201 [4]东南大学经济管理学院,江苏南京211189

出　　处：《地理科学》2024年第11期1936-1945,共10页Scientia Geographica Sinica

基　　金：湖南省社会科学基金重大项目(23ZDAJ023);湖南省社会科学基金(23YBA133);国家自然科学基金项目(42371192);湖南省自然科学基金面上项目(2023JJ30100)资助。

摘　　要：基于2006—2020年长江中游城市群面板数据,构建城市更新与生态韧性指标体系,采用熵权TOPSIS法测算城市更新与生态韧性指数,在此基础上利用社会网络分析方法分析城市更新与生态韧性的空间关联网络结构演变特征,并借助空间计量模型剖析城市更新对生态韧性的溢出效应。机理分析发现,城市更新与生态韧性存在空间关联网络,且城市更新对生态韧性影响存在空间溢出效应。通过实证研究,得出以下结果:(1)从时空格局上来看,长江中游城市群城市更新整体呈现“小集聚大分散”的空间分布特征,生态韧性呈现分散向集聚转变的空间分布态势。(2)长江中游城市群城市更新和生态韧性存在明显的空间溢出效应和网络关联关系,但是在研究期间内其网络整体稳定性有所降低;另外,个体特征表明各节点城市更新与生态韧性的空间关联和空间溢出效应有所削弱,对外辐射和接受外界辐射的能力降低。(3)空间计量模型回归结果显示城市更新对生态韧性具有显著的负向影响,效应分解结果显示城市更新对生态韧性存在显著的正向空间溢出效应。最后,在加强环境协同治理、优化城市更新发展模式以及探索城市更新提升生态韧性的多维路径等方面提出相关建议。Based on the panel data of the city cluster in the middle reaches of the Yangtze River in 2006—2020,we constructed the index of urban renewal and ecological resilience,measured the urban renewal and ecological resilience by using entropy-weighted TOPSIS method,analyzed the evolution of the spatial network structure of urban renewal and ecological resilience by utilizing the method of social network analysis,and detailed the spillover effect of urban renewal on ecological resilience by means of the spatial econometric model.The social network analysis method is used to analyze the evolution of the spatial network structure between urban renewal and ecological resilience,and the spatial measurement model is used to analyze the spillover effect of urban renewal on ecological resilience.Firstly,there is a spatial correlation network between urban renewal and ecological resilience,and there is a spatial spillover effect of urban renewal on ecological resilience.Secondly,the empirical results show that:1)From the perspective of spatial and temporal patterns,urban renewal in the urban agglomeration in the middle reaches of the Yangtze River presents the spatial distribution characteristics of“small agglomeration and large dispersion”,and the ecological resilience presents the spatial distribution situation of dispersion to agglomeration.2)The urban renewal and ecological resilience of the city cluster in the middle reaches of the Yangtze River have obvious spatial spillover effect and network correlation,but the stability of the network as a whole has been reduced during the study period;in addition,the individual characteristics show that the spatial correlation and spatial spillover effect of urban renewal and ecological resilience of each node have been weakened,and the ability to radiate and receive external radiation has been reduced.3)The regression results of the spatial measurement model show that urban renewal has a significant negative impact on ecological resilience,and the decomposition results show th

关 键 词：城市更新 生态韧性 空间网络 溢出效应 长江中游城市群 

分 类 号：TU984[建筑科学—城市规划与设计]