How do the indicators used by a city or metropolitan region differ from the global indicators2/21/2024 Received: SeptemAccepted: DecemPublished: December 21, 2020Ĭopyright: © 2020 Sun et al. PLoS ONE 15(12):Įditor: Bing Xue, Institute for Advanced Sustainability Studies, GERMANY These results provide effective guidance for the sustainable development of megacity regions.Ĭitation: Sun Z, Chen X, Xing H, Ma H, Meng Y (2020) Regional differences in socioeconomic trends: The spatiotemporal evolution from individual cities to a megacity region over a long time series. In terms of the contribution of the various cities to the overall regional changes, Guangzhou, Shenzhen and Hong Kong dominate the spatiotemporal changes in the gravity centers, while Foshan and Dongguan show significant potential to contribute to these socioeconomic patterns. Total retail sales exhibit the highest level of temporal change intensity, followed by GDP and population. From the perspective of the entire GBA, the spatial imbalance of GDP is the highest of the factors, followed by the spatial imbalance of the total retail sales of the region and, finally, by that of its population. Taking the Guangdong-Hong Kong-Macao Greater Bay Area (GBA) as its study area, this research produces results that show diverse spatiotemporal patterns among the individual cities, revealing high/low starting point and high/low growth rate modes in terms of city interactions. At the megacity regional level, gravity centers and pathways are constructed to evaluate spatial imbalances and temporal change intensities. A hierarchical clustering approach that utilizes socioeconomic similarities is proposed for the identification of the spatiotemporal patterns of individual cities. Employing GDP, population and total retail sales as socioeconomic indicators, the spatiotemporal patterns of socioeconomic trends are identified. To fill this gap, this paper investigates the multilevel regional differences within megacity regions. While much research has focused on the overall patterns of regional differences within independent cities and areas, the hierarchical spatiotemporal structures of megacity regions have seldom been discussed. Regional differences in socioeconomic factors are important for assessing the regional development of an area.
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