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Sustainability 2018, 10(3), 593; https://doi.org/10.3390/su10030593

Spatial and Temporal Dynamics of Urban Expansion along the Guangzhou–Foshan Inter-City Rail Transit Corridor, China

1
School of Geographical Sciences, Guangzhou University, Guangzhou 510006, China
2
School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275, China
3
Guangdong Key Laboratory for Urbanization and Geo-simulation, Sun Yat-sen University, Guangzhou 510275, China
4
School of Urban Design, Wuhan University, Wuhan 430072, China
5
Guangzhou surveying and mapping institute for real estate, Guangzhou 510030, China
6
School of Geographic Sciences, and Key Lab of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China
*
Author to whom correspondence should be addressed.
Received: 29 January 2018 / Revised: 15 February 2018 / Accepted: 20 February 2018 / Published: 26 February 2018
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Abstract

Understanding the urban expansion process along inter-city rail transit corridors is critical to regional integration of city groups. Though numerous studies have considered the influences of rail transit on land use and urban form, most have focused on local station areas or intra-city urban structures. Few studies have examined the effects and dynamic process along inter-city rail transit corridors at a regional scale. In this study, multi-remote sensing images, landscape metrics and gradient analysis were combined to investigate the spatial and temporal dynamics of urban expansion and regional structural changes along the GuangFo inter-city Metro in the Pearl River Delta, south China. We introduced Thiessen Polygon into quadrat zoning for landscape gradient analysis, and clearly revealed the spatial variations of landscape changes along the metro transect. The regional expansion stage and inter-city structural changes were further detected based on the theoretical framework of diffusion-coalescence growth. This study revealed that during its construction the GuangFo Metro significantly impacted urban expansion at the urban fringes. Before construction the urban patches became irregular and fragmented as the gradient moved from city centers to city fringes. Influenced by the GuangFo Metro, the urban patches expanded and consequently coalesced into a homogenous urbanized area, which indicated that coalescence was the dominant expansion stage and the regional structure become more aggregated. This suggested that the inter-city rail transit has played an important role in promoting the integration of the GuangFo metropolitan region. View Full-Text
Keywords: spatial and temporal dynamics; urban expansion; landscape gradient analysis; regional structure; GuangFo inter-city rail transit; China spatial and temporal dynamics; urban expansion; landscape gradient analysis; regional structure; GuangFo inter-city rail transit; China
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Li, S.; Liu, X.; Li, Z.; Wu, Z.; Yan, Z.; Chen, Y.; Gao, F. Spatial and Temporal Dynamics of Urban Expansion along the Guangzhou–Foshan Inter-City Rail Transit Corridor, China. Sustainability 2018, 10, 593.

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