城际互动:长三角地区城市土地高质量利用的空间交互效应及驱动因素

Urban Interaction:Spatial Interaction Effects and Driving Factors of High-quality Use of Urban Land in the Yangtze River Delta

将高质量发展理念融入城市土地利用,基于2010~2020年长三角地区41个城市的面板数据,通过构建评价体系,运用综合评价模型和探索性空间数据分析,对长三角地区城市土地高质量利用(HUUL)的时空格局特征进行了探索,借助空间杜宾模型和偏微分方法对长三角地区HUUL的空间交互效应及其驱动因素进行了分析。研究结果表明:(1)2010~2020年,长三角地区HUUL水平总体呈持续增长趋势,但空间分异显著,长江沿线城市和环杭州湾的沿海城市HUUL水平较高,长三角西部区域HUUL水平相对较低。(2)长三角地区HUUL水平存在显著的正向全域空间自相关性,局域空间以高-高和低-低集聚类型为主,城际间HUUL的空间交互效应显著。(3)基础设施、科技创新、政府管理是影响长三角地区城际间HUUL空间交互效应的重要驱动因素,经济水平和产业结构仅对本地城市HUUL产生影响,对邻近城市的溢出效应尚不显著,信息化水平则对邻近城市的HUUL具有显著的正向促进作用。研究结果对于揭示HUUL空间交互效应的内在机制,指导长三角地区从区域联动视角提升城市土地利用质量,具有重要意义。

Integrating the concept of high-quality development into urban land use,and based on the panel data of 41 cities in the Yangtze River Delta from 2010 to 2020,we explored the spatial and temporal pattern characteristics of high-quality use of urban land(HUUL)by using the comprehensive evaluation model and exploratory spatial data analysis.We analyzed the spatial interaction effect and driving factors of HUUL in the Yangtze River Delta by using the spatial Durbin model and partial differential method.The results show that:(1)From 2010 to 2020,the HUUL level in the Yangtze River Delta region showed a continuous growth trend,while the spatial differentiation was significant.The cities along the Yangtze River and the coastal cities around Hangzhou Bay had higher HUUL levels,while the western region of the Yangtze River Delta had lower HUUL levels.(2)The level of HUUL in the Yangtze River Delta region showed a significant positive global spatial autocorrelation.The local space was characterized by High-High and Low-Low concentration types.The spatial interaction effect of HUUL among cities were significant.(3)Infrastructure,technological innovation,and government management were the important driving factors that affected the HUUL spatial interaction effect among cities,while Economic level and industrial structure only affected the local cities'HUUL,and the spillover effect on neighboring cities was not significant.The level of informatization had significant positive promotion effects on the HUUL of neighboring cities.The research results are of great significance for revealing the internal mechanism of HUUL spatial interaction effect and for guiding the Yangtze River Delta region to improve the quality of urban land use from the perspective of regional linkage.