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Journal of Desert Research ›› 2023, Vol. 43 ›› Issue (6): 111-120.DOI: 10.7522/j.issn.1000-694X.2023.00065

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Research on spatio-temporal evolution and driving factors of urban agglomeration vulnerability in Guanzhong Plain

Chenxi Xu1(), Honglian Wan1,2(), Ruonan He1, Peng Yin1, Jingfeng Ni1, Min Huang1, Xiaoli Wang1   

  1. 1.School of Geography and Environment /, Baoji University of Arts and Sciences,Baoji 721013,Shaanxi,China
    2.Shaanxi Key Laboratory of Disasters Monitoring and Mechanism Simulation, Baoji University of Arts and Sciences,Baoji 721013,Shaanxi,China
  • Received:2023-03-07 Revised:2023-05-31 Online:2023-11-20 Published:2023-11-30
  • Contact: Honglian Wan

Abstract:

As the research area, the urban vulnerability of Guanzhong Plain urban agglomeration is measured comprehensively by entropy value method, and its spatio-temporal evolution characteristics are analyzed and driving factors are explored by Geo-detector. The results showed that: (1) From 2004 to 2018, the urban vulnerability of Guanzhong as a whole shows a decreasing trend in terms of time, which presents characteristics of high around and low in middle in 2004, and vulnerability types mostly present high and higher in space; the vulnerability gap between cities gradually decreases and tends to be stable and low with well development, which laterally reflects that social factors contribute more in influencing the urban vulnerability of Guanzhong. (2) The influence of local fiscal revenue, Hoffman coefficient and harmless treatment rate of domestic waste on urban vulnerability increases year by year, while the influence of fixed asset investment density, ratio of science and education expenditure to fiscal, natural population growth rate, urban registered unemployment rate, and ratio of days with good air quality, centralized treatment rate of sewage treatment plants and industrial wastewater discharge density in built-up areas on urban vulnerability diminishes year by year. (3) There are interaction effects among the driving factors; the interaction results have significant effects on the urban vulnerability of Guanzhong. The social environment largely constrains the development of economic scale, urban infrastructure and ecological situation with a strong influence on urban vulnerability in 2004. The coercing of economic structure to Guanzhong is the main factor of urban vulnerability in 2011. The economic scale is the key factor that constrains development of Guanzhong and affects urban vulnerability, the interaction between degree of environmental pollution and resource utilization has a stronger hold on urban vulnerability in 2018.

Key words: urban vulnerability, Guanzhong Plain urban agglomeration, spatio-temporal pattern, geo-detector

CLC Number: