Urban-rural common prosperity models in key ecological function zones and the enhancement of their endogenous dynamics: A case study of the Wanlyu Lake Green Development Zone in Guangdong province

This study examines the pathways to urban-rural common prosperity in key ecological function zones, using Guangdong's Wanlyu Lake Green Development Zone as a case area. Guided by the "two mountains" theory (lucid waters and lush mountains are invaluable assets), we developed an analytical framework integrating "production-living-ecological" functions. Employing a mixed-methods approach—combining entropy weighting, a coupling coordination degree model, and semi-structured interviews—we identified distinct prosperity models and their endogenous drivers. Key findings indicate that: (1) Significant spatial disparities in common prosperity levels across townships in 2023, characterized by a dominant urban core and a declining north-south gradient. (2) The coupling coordination of the three functions exhibits marked geographical heterogeneity, delineating three synergistic models: symbiotic harmony, synergistic value added, and development-livability. (3) These models represent distinct pathways to common prosperity, driven respectively by production-led livelihood sharing, eco-centric quality of life, and value conversion from ecological assets. (4) Endogenous dynamics are fueled by a triple-driver mechanism—resource transformation, factor circulation, and spatial restructuring—which synergistically enhances prosperity and fosters integrated urban-rural development. This research provides a systematic framework for understanding and promoting sustainable prosperity in ecologically constrained regions.