CENTRALIZATION OR DECENTRALLIZATION? THE EVOLUTION TRENDS AND INFLUENTIAL FACTORS OF POPULATION DENSITY DISTRIBUTION OF CHINESE CITIES AT PREFECTRUE LEVEL OR ABOVE FROM 2000 TO 2020

ZHANG Yan-ji; CHI Hu-Jie; LIN Sheng

doi:10.13959/j.issn.1003-2398.2023.02.016

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HUMAN GEOGRAPHY ›› 2023, Vol. 38 ›› Issue (2) : 137-144. DOI: 10.13959/j.issn.1003-2398.2023.02.016

CENTRALIZATION OR DECENTRALLIZATION? THE EVOLUTION TRENDS AND INFLUENTIAL FACTORS OF POPULATION DENSITY DISTRIBUTION OF CHINESE CITIES AT PREFECTRUE LEVEL OR ABOVE FROM 2000 TO 2020

ZHANG Yan-ji¹, CHI Hu-Jie^2,3, LIN Sheng¹

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Abstract

Based on WorldPop dataset of 2000 and 2020 and monocentric models including negative exponential model, logarithmic model, and power model, this research reveals the evolution trends and driven factors of residential population density distributions of 263 Chinese cities at prefecture level or above. Firstly, we found that the fitting degrees of three monocentric models for population density distribution generally decreased in the decentralized cities, while remained stable in most centralized cities. The application of exponential function was more suitable for large cities, and power function was more suitable for small or medium-sized cities. Secondly, 70% and 30% cities have experienced the process of centralization and decentralization over the past 20 years, respectively. The population density gradients of eastern and high-grade cities were higher and their trends of centralization were stronger, while the majority of southwest mountainous cities were more likely to decentralize. Thirdly, both market mechanism and public policy shape the spatial pattern of population density. With the expansion of population scale, improvement of living condition, and shrinkage of family size, the urban population density gradient would drop significantly, or the probability and changing extent of decentralization would rise significantly. The construction of road network and the public transportation priority policy promote decentralization.

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density gradient / monocentric model / centralization / decentralization / urban spatial structure

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ZHANG Yan-ji, CHI Hu-Jie, LIN Sheng. CENTRALIZATION OR DECENTRALLIZATION? THE EVOLUTION TRENDS AND INFLUENTIAL FACTORS OF POPULATION DENSITY DISTRIBUTION OF CHINESE CITIES AT PREFECTRUE LEVEL OR ABOVE FROM 2000 TO 2020[J]. HUMAN GEOGRAPHY. 2023, 38(2): 137-144 https://doi.org/10.13959/j.issn.1003-2398.2023.02.016

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