The study on county accessibility in China: Characteristics and effects on population agglomeration

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• 作者：Zhenbo Wang (1)
  Jiangang Xu (2)
  Chuanglin Fang (1)
  Lu Xu (2)
  Yi Qi (2)
  
• 关键词：county ; spatial accessibility ; population aggregation ; raster cost weighted ; China
• 刊名：Journal of Geographical Sciences
• 出版年：2011
• 出版时间：February 2011
• 年：2011
• 卷：21
• 期：1
• 页码：18-34
• 全文大小：730KB
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• 作者单位：Zhenbo Wang (1)
  Jiangang Xu (2)
  Chuanglin Fang (1)
  Lu Xu (2)
  Yi Qi (2)
  
  1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, 100101, China
  2. School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, 210093, China
  
• ISSN：1861-9568

文摘

This paper calculated spatial accessibility of all counties (city, urban district) in China with cost weighted distance method. Region divisions of county accessibility were conducted, and relation of traffic accessibility and population aggregation was discussed in this paper. The results indicated that county accessibility in China had mainly low values and a distribution structure of circle layer and reverse-to-natural gradient. There was an obvious correlation between county accessibility and population density in China. With these analyses, inner mechanisms of population migration in different traffic conditions and region types were revealed, and can provide useful proposals to regional planning, traffic planning and smart distribution of people in China.