Research on the Coordinated Development Mechanism and Policy Guarantee of Farmland Scale Management and Quality Improvement under the Background of Rural Revitalization

Coordinated optimization of farmland scale management and quality improvement requires quantitative analysis of nonlinear configuration effects, dynamic incentives, and spatial spillovers. This study constructs an integrated modeling framework combining fuzzy-set qualitative comparative analysis, dynamic game modeling, spatial difference-indifferences, and grouped comparative experiments. fsQCA is used to identify configuration paths under different resource endowments, the dynamic game model explains long-term maintenance-investment incentives, and the spatial econometric model evaluates infrastructure spillover effects. Counterfactual simulation and quasi-natural experiments are further conducted to test policy effectiveness. Results indicate that the appropriate scale range is 5–20 hectares, high-standard farmland construction generates a spatial spillover effect of 0.05, and the service-scale model outperforms the property-rights-scale model in coordinated quality improvement and operational efficiency. The study provides a quantitative decision-support framework for resource allocation, spatial interaction analysis, and regional system optimization.