A Synergetic Assessment Framework Based on Composite System Coordination Metrics: Empirical Analysis of Ecological-Environmental Service Integration in the Jiaodong Economic Zone

Regional coordinated development demonstrates a robust interdependency with the integration of ecological-environmental services. This study establishes a multidimensional assessment framework for ecological-environmental service integration within the Jiaodong Economic Zone. Employing entropy weighting methodology, we conduct quantitative analysis of service provision levels spanning 2011-2023, with spatial heterogeneity characteristics elucidated through coefficient of variation and Gini coefficient computations. A composite system synergy model, augmented by system dynamics simulation, enables comprehensive evaluation of synergetic development efficiency across the economic zone. The findings reveal measurable progress in ecological service integration. However, they also identify persistent structural barriers, including interjurisdictional disparities in public goods allocation, organizational inertia within existing administrative structures, and suboptimal performance evaluation mechanisms. Policy recommendations emphasize incentive architecture optimization, collaborative governance institution building, and multidimensional assessment system design to catalyze regional synergy enhancement.