On Spatial-Temporal Evolution and Convergence of Land Use Efficiency of Cities in Different Scales
Aiming at the problems of land use and development gap in the process of economic development of cities of different sizes,this paper used Super-SBM model,spatial autocorrelation method and spatial convergence method to study the land use efficiency and convergence of these cities from 2008 to 2019.The results indicated that:(1)The land use efficiency of big cities and small cities showed an upward trend,while the Megalopolis and medium-sized cities saw a small decrease in this aspect.At the same time,the efficiency wouldn't be increased as the scale of the city was enlarged;(2)The spatial correlation results showed that the spatial agglomeration effect of land use efficiency was increasing in the study area;(3)The urban land use efficiency of cities varying in scale displayed obvious β convergence.Considering the spatial factors,government intervention,economic development and other control variables could accelerate the speed of convergence.As such,the results can be used as a reference for formulating differentiated land use regulation policies to narrow the economic development gap and achieve common prosperity.
different scalesland use efficiencyspatio-temporal evolutiondifferencespatial convergence