Revitalization of idle rural residential land: Coordinating the potential supply for land consolidation with the demand for rural revitalization

The consolidation and reuse of idle rural residential land (IRRL) is a key component when studying rural sustainable land use. Scientifically understanding the relationship between the consolidation of IRRL and rural revitalization and exploring ways to revitalize IRRL through rural revitalization are key scientific issues that urgently need to be solved for rural land sustainability. By applying an integrated framework, the potential supply for consolidation and the utilization demand of IRRL under rural revitalization are synthetically identified, and the supply-demand relationship is further explored. Finally, diversified revitalization for IRRL based on the coordination of supply and demand is proposed. The results show that the dominant sources of the consolidation potential for IRRL are agricultural land supply, ecological improvement and industrial land supply. The dominant demands for IRRL involve industrial development, residence function and ecological protection. There is an obvious mismatch between the consolidation potential supply and the utilization demand of IRRL, and the lack of consolidation potential supply is the main source of this mismatch. Under the trade-off between consolidation potential supply and rural revitalization demand, industrial development and ecological improvement are the dominant utilization directions of IRRL in Pinggu, and fewer villages are being used for residential improvement. The direct consolidation of village functions, the transformation into a land index for spatial transfer, and maintaining the land as idle are the primary revitalization methods for IRRL. The study aims to realize the potential value of IRRL and to deeply explore the human-land adaptation relationship under rural revitalization to enrich the research system of sustainable land use and provide a reference for rural land rights reform in developing countries.