Spatial synergistic effect of regional integration on urban land use efficiency in Yangtze River Delta urban agglomeration
With the development of regional integration in urban agglomerations,there is still a lack of empirical evidence as to whether synergistic improvement of land use efficiency can be achieved among cities with the help of spatial proximity.Taking the Yangtze River Delta(YRD)urban agglomeration as the study area and 2003-2019 as the study period,this paper uses the improved gravity model and the SBM model to measure the level of regional integration and urban land-use efficiency of cities respectively,and empirically tests the spatial synergy effect of YRD regional integration on the land-use efficiency of the urban agglomeration through the spatial Durbin model.The results show that:(1)The YRD regional integration has a positive and significant spatial synergistic effect on the land use efficiency of the urban agglomeration.Improvement in the level of regional integration can not only directly improve the land use efficiency of local cities,but also indirectly improve the land use efficiency of neighboring cities through spatial proximity.(2)Spatial proximity based on geographic distance,geographic location,and economic linkages is conducive to the synergistic improvement of land use efficiency in the urban agglomeration,and the spatial synergistic effect based on geographic distance is the largest.(3)Heterogeneity analysis found that regional integration under the leadership of the central government is more conducive to the synergistic improvement of land use efficiency in the urban agglomeration than that led by local governments.The findings of this paper can provide a theoretical reference for the decision-making related to the high-quality development of the urban economy and the economical and intensive use of resources.
regional integrationurban land use efficiencysynergy effectspatial Durbin modelYangtze River Delta
万方数据
维普
