Suburbanization and subcentering of population in Beijing metropolitan area: A nonparametric analysis
Suburbanization and subcentering of population in Beijing metropolitan area: A nonparametric analysis
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DOI：
10.1007/s11769-012-0547-8
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发表时间：
2012-05
影响因子：
3.4
通讯作者：
Tieshan Sun;Zhenhai Han;Lanlan Wang;Guoping Li
中科院分区：
文献类型：
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作者：
Tieshan Sun;Zhenhai Han;Lanlan Wang;Guoping Li
本文以人口郊区化和人口再中心化为研究重点，从人口分布的角度考察了北京大都市区人口空间重构的本质。我们用非参数分析代替经典的密度函数方法来刻画北京大都市区人口密度的空间格局，并确定郊区的城市副中心。我们的研究结果表明，北京大都市区人口随着城市的快速增长而扩散，紧凑的城市形态已经被更加分散的多中心空间分布所取代。然而，与西部城市分散化相比，北京都市圈人口分散化的空间程度相当有限。近郊人口的快速增长加速了中心城市的扩张，更大的中心人口集聚主导了大都市地区。从这个意义上说，北京都市圈的空间格局仍然以持续紧凑为特征。然而，我们的发现确实提供了证据，表明这座城市正在转向多中心结构。我们发现，自20世纪80年代以来，北京郊区出现了重要的人口副中心。但北京大都市区出现的多中心化在本质上与西方城市所观察到的截然不同。新出现的城市副中心都遵循了城市规划的发展规划，可以称之为“规划多中心”。
This study focuses on the suburbanization and subcentering of population and examines the nature of spatial restructuring in terms of the population distribution in the Beijing metropolitan area. Instead of the classic density function approach, we employ the nonparametric analysis to characterize the spatial pattern of population densities in the Beijing metropolitan area and identify the suburban subcenters. Our findings suggest that the population has spread with rapid urban growth in the Beijing metropolitan area, and the compact urban form has been replaced by a more dispersed polycentric spatial distribution. However, compared with the decentralization of western cities, the spatial extent of the decentralization of population in the Beijing metropolitan area is quite limited. The rapid growth of population in the near suburbs has expedited the sprawl of the central city, with a larger central agglomeration of population dominating the metropolitan area. In this sense, the spatial pattern of the Beijing metropolitan area is still characterized by the continuous compactness. However, our findings do provide the evidence that the city has been turning to a polycentric structure. We find significant population subcenters have emerged in the suburbs of Beijing since the 1980s. But the polycentricity emerged in the Beijing metropolitan area is very different by nature from that observed in Western cities. The subcenters emerged are adherent to the development scheme planned for the city, so it can be referred to as the so called’ planned polycentricity’.