1.School of Surveying and Geoinformation Engineering,East China University of Technology,Nanchang,330013,China
2.Chongqing Bishan District Land Consolidation and Reserve Center,Chongqing,402760,China
3.Jiangxi Key Laboratory of Watershed Ecological Process and Information,East China University of Technology,Nanchang,330013,China
4.Key Laboratory of Mine Environmental Monitoring and Improving Around Poyang Lake of Ministry of Natural Resources,East China University of Technology,Nanchang,330013,China
5.Nanchang Key Laboratory of Landscape;Process and Territorial Spatial Ecological Restoration,East China University of Technology,Nanchang,330013,China
Objective This study investigates the characteristics of the coordination network between new-type urbanization (NTU) and land-use ‘production-living-ecological (PLE) ’ functions in the Yangtze River Delta (YRD), aiming to provide theoretical reference for identifying the functional roles of regional cities and formulating categorized guidance strategies for territorial spatial planning. Methods Based on panel data for prefecture-level cities in the YRD from 2000 to 2023, evaluation indicator systems for NTU and PLE functions were constructed. Coupling coordination methods, an improved gravity model, and social network analysis (SNA) were employed to build the coordination network. Cities were then categorized based on regional coupling levels and network patterns, and differentiated development strategies were proposed. Results (1) The coupling coordination degree of NTU-PLE in the YRD was generally low but showed an upward trend over time. (2) Within the coordination network, network density increased over time, and the spatial configuration became more complex with closer intercity linkages. Overall centrality measures exhibited a spatial pattern of ‘higher in the central subregion, lower in the north and south’, with coordination levels weakening radially away from central core cities toward the north and south. (3) Based on the coupling and SNA results, cities were classified into four types (core-radiative, central hub, potential-growth, and periphery-dependent) with tailored strategies proposed for each. Conclusion Cities in the YRD exhibit a ‘core-periphery’ spatial dependence pattern. Future planning should adopt strategies of categorized guidance and differentiated regulation, transforming network structural advantages into tangible coordinated development outcomes through functional complementarity and policy coordination.
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