基于超效率SBM模型的东北三省城市土地利用效率时空差异及影响因素OACSTPCD

[Objective]Exploring the spatial and temporal differences in urban land use efficiency and the influ-encing factors in the three northeastern provinces can provide reference for high-quality urban development and optimization of territorial spatial pattern in the three northeastern provinces and other less developed regions.[Methods]Spatial and temporal differences in urban land use efficiency and the influencing factors in three northeastern provinces from 2010 to 2020 were analyzed by using super-efficient SBM model,non-para-metric kernel density estimation and Tobit regression model.[Results](1)In terms of temporal evolution characteristics,the average value of urban land use efficiency in the three northeastern provinces showed a significant upward trend,but the overall level was not high.In terms of spatial evolution characteristics,there were significant regional differences,the number of cities in the low value area decreased significantly,the number of cities in the high value area increased,and the distribution range of cities in the high value area covered the whole area of the three northeastern provinces from Heilongjiang.(2)In terms of the dynamic evolution characteristics of time series,the polarization degree,efficiency difference and development level of urban land use efficiency in the three provinces showed different dynamic evolution characteristics in different time periods during the study period.(3)From the analysis of influencing factors,the degree and direction of influence of each variable on urban land use efficiency in Liaoning,Jilin and Heilongjiang provinces differed,with human capital,expenditure on science and education,level of economic development,degree of open-ness to the outside world,industrial structure,transportation infrastructure and urbanization rate having a facilitating effect and environmental regulation having an inhibiting effect.[Conclusion]To achieve high-quality urban development and intensive and efficient use of land,each city should systematically promote from stimulating economic growth,optimizing and upgrading industrial structure,optimizing the business environment,and doing a good job of introducing talents and capital according to local conditions and city-specific policies.