Regular Articles
MA Li, HU Ye, LI Si-jie, LONG Hua-lou, XU Si-yi
Farmland abandonment and its reutilisation constitute a core challenge for global sustainable land management, critically impacting food security and the achievement of the 'Zero Hunger' goal under the Sustainable Development Goals (SDGs). To systematically understand the research trajectory and future trends in this field, this paper comprehensively reviews studies on farmland abandonment and reutilisation. The research indicates that: (1) Existing studies have made significant progress in identifying abandoned farmland, primarily employing three methods: field surveys, literature meta-analysis, and remote sensing. Farmland abandonment is driven by a complex interplay of socio-economic, biophysical, and policy-institutional factors. However, research on the long-term, nonlinear effects of abandonment on socio-economic and ecological systems remains relatively insufficient, and some impacts are still subject to debate. (2) Reutilizing abandoned farmland faces multi-dimensional challenges, including imperfect policy systems, inadequate governance efficacy, insufficient motivation among potential users, and prominent risks to sustainable utilization. Addressing these requires systematic solutions: refining top-level design, standardizing policy implementation, activating the motivation of diverse stakeholders, and strengthening engineering and technological support. (3) Reutilisation pathways can be categorized into agricultural uses, ecological uses, and construction uses. The selection among these pathways necessitates careful trade-offs among multidimensional benefits, including food security, farmer livelihoods, and ecological conservation. (4) Current research still exhibits shortcomings in theoretical frameworks, modeling methodologies, regional adaptation models, and governance effectiveness. Future research should deepen theoretical integration, innovate data modeling approaches, evaluate the synergistic benefits of policy combinations, and promote the systematic categorization of regional models. This will provide academic support for safeguarding food security, fostering sustainable rural development, and advancing ecological civilization.