A temporally cyclic growth model of urban spatial morphology in China: Evidence from Kunming Metropolis

Qiyan Wu and Jianquan Cheng
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Qiyan Wu: Xi’an Jiaotong University, China, and Simon Fraser University, Canada
Jianquan Cheng: Manchester Metropolitan University, UK

Urban Studies, 2019, vol. 56, issue 8, 1533-1553

Abstract: Rapid urbanisation and complexity of political-economic transition in China has brought about continuous and remarkable changes of urban morphology over the past decades, which were driven by a mixture of spatial, social-economic and institutional forces. Understanding such urban morphological evolution requires new mixed evidence and holistic perspectives. In this paper, it is argued that two dominant types of urban growth in China: low-density expansion and high-density infill, might be driven by different forces at different stages. To interpret the processes of urban development, two easy-to-understand morphological indicators: ‘expansion-induced investment density index’ (EID) and ‘infill-induced investment density index’ (IID), are defined to measure the investment density per unit of developed land and used to compare the morphological changes between different phases in a long period by integrating spatial and socio-economic data. The temporal variation of these indicators suggests a cyclic growth model (CGM), which means the periodic switch between low-density expansion and high-density infill. Using Kunming metropolis as a case study, this paper has confirmed that its urban morphological evolution from 1950 to 2014 was periodically and reciprocally driven by a set of vis-à -vis dualistic dynamics, in which low-density expansion is led by pro-growth infrastructure-oriented public investment, while the high-density infill is activated by collective and rational actions of individual enterprises and their economic behaviours. It is concluded that the confirmed CGM model, together with two morphological indicators, offers a new holistic perspective and method to easily and integrally interpret urban morphological evolution and accordingly has potential theoretical implications for reasonably understanding the urbanisation in China.

Keywords: cyclic growth model; high-density infill; low-density expansion; urban morphology; Kunming; 循环增长模型ã€; 高密度填充ã€; ä½Žå¯†åº¦æ‰©å¼ ã€; åŸŽå¸‚å½¢æ€ ã€; 昆明 (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:sae:urbstu:v:56:y:2019:i:8:p:1533-1553

DOI: 10.1177/0042098018767614

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