4.5 Article

Multi-Scale Analysis of Regional Inequality based on Spatial Field Model: A Case Study of China from 2000 to 2012

Journal

ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
Volume 4, Issue 4, Pages 1982-2003

Publisher

MDPI
DOI: 10.3390/ijgi4041982

Keywords

regional inequality; spatial field; nodality index; accessibility; China

Funding

  1. National Natural Science Foundation of China [41401192, 41271174]
  2. Humanities and Social Sciences Foundation of the Ministry of Education [14YJCZH106]
  3. Key Program of the National Natural Science Foundation of China [71433008]

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A large body of recent studies-from both inside and outside of China-are devoted to the understanding of China's regional inequality. The current study introduces the spatial field model to achieve comprehensive evaluation and multi-scale analysis of regional inequality. The model is based on the growth pole theory, regional interaction theory, and energy space theory. The spatial field is an abstract concept that defines the potential energy difference that is formed in the process of a regional growth pole driving the economic development of peripheral areas through transportation and communication corridors. The model is able to provide potentially more precise regional inequality estimates and generates isarithmic maps that will provide highly intuitive and visualized presentations. The model is applied to evaluate the spatiotemporal pattern of economic inequality in China from 2000 to 2012 amongst internal eastern-central-western regions as well as north-south regions at three geographical scales-i.e., inter-province, inter-city, and inter-county. The results indicate that the spatial field model could comprehensively evaluate regional inequality, provide aesthetically pleasing and highly adaptable presentations based on a pixel-based raster, and realise the multi-scale analyses of the regional inequality. The paper also investigates the limitations and extensions of the spatial field model in future application.

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