Interactions Among socio-economy Systems, Urban Green Spaces, and Ecological Corridors: A Case Study of Kunming Using Entropy Weight and Coupling Coordination Models

Kunming City in Yunnan Province, China, is currently undergoing development as the “Plateau Pearl and Green & Beautiful Spring City.” The rapid growth of its socio-economy development increasingly conflicts with ecological conservation. Rationally assessing and enhancing the coordinated development among the three major subsystems socio-economy, urban green space, and ecological corridors,is an urgent issue requiring resolution for high-quality socio-economy development. This study adopts a dual perspective of ecological civilization and spatial governance, employing the entropy weight method and coupling coordination degree model to construct an evaluation framework. This approach addresses limitations in traditional research, such as subjective weighting and insufficient dynamic analysis, enabling objective and quantifiable assessment of coordination levels. This study employs the entropy weight method to calculate objective weighting for 26 indicators across Kunming's socio-economy system, urban green space system, and ecological corridor system from 2018 to 2024. Annual coupling coordination scores are computed to reflect developmental changes in these three systems, yielding comprehensive scores and coordination levels. Data primarily sourced from the Kunming Statistical Yearbook and the 14th Five-Year Plan for Biodiversity Conservation Implementation. and the 2024 China Natural Resources Bulletin. The study found that from 2018 to 2024, the comprehensive development level of Kunming's three systems exhibited a “fluctuating upward trend,” with the comprehensive score rising from 0.199 to 0.699, indicating a significant enhancement in overall system resilience. The socio-economy system maintained its leading position, while the urban green space system faced the issue of meeting aggregate targets but lacking spatial equity, and the ecological corridor system grappled with the dilemma of “sound baseline conditions but poor connectivity.” Finally, the study proposes a dual-track optimization s trategy of targeted green space enhancement, corridor network weaving: First, densify 5-minute green zones in new districts like Guandu and Chenggong to improve service equity.Second, prioritize restoring 75 high-density ecological corridor areas to connect urban parks with core ecological sources like Dianchi Lake and Jiaozi Mountain, forming an integrated ecological network of urban greenery, corridor connectivity, suburban greenery.