| 中国县域可达性研究——特征及其对人口分布的影响 |
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| 引用本文： | 王振波,徐建刚,方创琳,徐璐,祁毅.中国县域可达性研究——特征及其对人口分布的影响[J].地理学报(英文版),2011,21(1):18-34. |
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| 作者姓名： | 王振波 徐建刚 方创琳 徐璐 祁毅 |
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| 作者单位： | Institute of Geographic Sciences and Natural Resources Research,CAS;School of Geographic and Oceanographic Sciences,Nanjing University |
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| 基金项目： | Foundation： National Natural Science Foundation of China, No.40871261; No.40971101; The Mega-project of Science and Technology Research for the 11th Five-Year Plan of China, No.2006BAJ05A06 |
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| 摘 要： | 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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| 关 键 词： | county spatial accessibility population aggregation raster cost weighted China |
| 收稿时间： | 30 September 2010 |
The study on county accessibility in China: Characteristics and effects on population agglomeration |
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| Zhenbo?Wang,Jiangang?Xu,Chuanglin?Fang,Lu?Xu,Yi?Qi.The study on county accessibility in China: Characteristics and effects on population agglomeration[J].Journal of Geographical Sciences,2011,21(1):18-34. |
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| Authors: | Zhenbo Wang Jiangang Xu Chuanglin Fang Lu Xu Yi Qi |
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| Institution: | 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 |
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| Abstract: | 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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| Keywords: | county spatial accessibility population aggregation raster cost weighted China |
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