Objective Against the backdrop of the dual-carbon goals and sustainable development, this study investigates the critical role of regional carbon ecological compensation mechanisms in addressing the conflict between economic development and ecological preservation during land development and utilization. Methods Focusing on Anhui Province, this study constructed a systematic framework of "spatiotemporal differentiation-network connectivity-compensation zoning". Using network analysis, carbon ecological compensation modeling, and the entropy weight-TOPSIS method, a differentiated carbon compensation scheme based on Sustainable Development Goals (SDGs) was established through the K-means algorithm. Results 1) During the study period, land-use carbon emissions in Anhui Province increased significantly with notable spatial differences, demonstrating an overall spatial distribution of "high-north-low-south, high-east-low-west". 2) The regional carbon association network gradually formed a "core-periphery" structure centered on Hefei, with Wuhu, Ma'anshan, and Huainan as the main nodes, and the overall network connectivity continued to strengthen. 3) The spatial variation in carbon compensation values was significant, with total carbon payments and carbon compensation amounts reaching 109.89×108 yuan and 25.23×108 yuan, respectively. Seven payment zones and ten compensation zones were identified. 4) In line with urban sustainable development, seven types of carbon-integrated ecological compensation management zones were formed. For each type, differentiated strategies of "gradient compensation-collaborative governance" were proposed. Conclusion The findings offer insights for enhancing regional carbon equity and promoting the coordinated development of the dual-carbon goals and the SDGs, serving as a reference for improving cross-regional ecological compensation policies.
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