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

The study on county accessibility in China: Characteristics and effects on population agglomeration
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中国县域可达性研究:特征及其对人口集聚的影响

DOI:
10.1007/s11442-011-0826-9
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发表时间:
2011-03
影响因子:
4.9
通讯作者:
Qi Yi
Qi Yi
中科院分区:
地球科学2区
文献类型:
--
作者:
Wang Zhenbo;Xu Jiangang;Fang Chuanglin;Xu Lu;Qi Yi

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采用成本加权距离法计算了中国各县(市、市区)的空间可达性。对县域可达性进行了区域划分,并探讨了交通可达性与人口聚集的关系。结果表明,中国县域可达性以低值为主,呈圈层和逆自然梯度分布。中国县域可达性与人口密度之间存在明显的相关关系。通过这些分析,揭示了不同交通条件和区域类型下人口迁移的内在机制,为我国区域规划、交通规划和人口合理分布提供了有益的建议。
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.
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