中国城乡建设用地减量化研究进展及展望

Progress and prospects of urban and rural construction land reduction research in China

【目的】城乡建设用地减量化是城镇化后期和人口减少趋势下面临的重要命题,城乡建设用地减量化研究能为优化城乡建设用地配置和促进国土空间治理提供参考。【方法】运用文献综述法系统梳理中国城乡建设用地减量化内涵、时空演变、驱动机制和途径等研究成果进展,提出未来城乡建设用地减量化研究的方向和主要任务。【结果】城乡建设用地减量化的内涵从数量控制逐步向提质增效和优化布局转变;城乡建设用地减量化时空演变主要集中在宅基地与工业用地减量化潜力测算和空间分异;人口流失和产业衰退造成了城市收缩和农村空心化,引发了城乡建设用地减量化;城镇低效用地再开发、城乡建设用地增减挂钩、建设用地增存挂钩和全域土地综合整治是实现城乡建设用地减量化的路径。【结论】未来城乡建设用地减量化研究应以人地关系地域系统理论为指导,以“理论认知—减量化时空演变—减量化调控模式—减量化效应”为研究主线,完整、准确、全面剖析城乡建设用地减量化内涵,加强不同区域、不同空间尺度城乡建设用地减量化演变过程及空间差异研究,加强城乡建设用地减量化模式总结和案例分析,深化多元效应分析和对比研究。

[Objective]The reduction of urban and rural construction land is an important proposition with the tendency of population decline in the latter stages of urbanization.Our research provided reference for optimizing the allocation of urban and rural construction land and promoting the governance of national territory.[Methods]This study examined the connotation,spatiotemporal evolution,driving mechanism,and approaches of urban and rural construction land reduction in China through literature review,and proposed the directions and major tasks for future research.[Results]The connotation of urban and rural construction land reduction has shifted from scale control to improvement of quality,efficiency and layout.The spatiotemporal evolution of urban and rural construction land reduction mainly focused on the estimation of reduction potential and its spatial differentiation.Urban shrinkage and rural hollowing out brought by population loss and industrial recession have reduced the urban and rural construction land.Approaches to urban and rural construction land reduction include redevelopment of inefficient land,linkage between increase and decrease of urban and rural construction land,linkage between increase and storage of construction land and comprehensive land remediation of the entire region.[Conclusion]Future research should focus on the main stream of“theoretical cognition-spatiotemporal evolution-regulation model-effects of reduction”,directed by the regional system theory of humanenvironment relationship.Research on the connotation,evolution and spatial difference of urban and rural construction land reduction in different regions and at different spatial scales should be strengthened.Case studies and summary of models should be emphasized to enhance the multiple effect analyses and comparative studies.