地理研究 ›› 2018, Vol. 37 ›› Issue (5): 898-909.doi: 10.11821/dlyj201805004

• 研究论文 • 上一篇    下一篇

基于DMSP/OLS夜间灯光数据的京津冀地区城市空间扩展与空间关联测度

陈昕(), 彭建(), 刘焱序, 陈云谦, 郦天昳   

  1. 北京大学城市与环境学院,地表过程分析与模拟教育部重点实验室,北京 100871
  • 收稿日期:2017-12-01 修回日期:2018-03-06 出版日期:2018-05-20 发布日期:2018-05-20
  • 作者简介:

    作者简介:陈昕(1992- ),男,江苏南京人,硕士,研究方向为区域规划与土地利用。E-mail: chenxinxin1992@163.com

  • 基金资助:
    国家科技支撑计划课题(2012BAJ15B02)

Measuring spatial expansion and correlations of cities in Beijing-Tianjin-Hebei Urban Agglomeration using DMSP/OLS nighttime light data

Xin CHEN(), Jian PENG(), Yanxu LIU, Yunqian CHEN, Tianyi LI   

  1. Ministry of Education, Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
  • Received:2017-12-01 Revised:2018-03-06 Online:2018-05-20 Published:2018-05-20
  • About author:

    Author: Shi Zhenqin (1988-), PhD, specialized in regional development and land space management in mountain areas. E-mail: kevinszq@163.com

    *Corresponding author: Deng Wei (1957-), Professor, specialized in mountain environment and regional development.

    E-mail: dengwei@imde.ac.cn

摘要:

对城市群空间关联的研究可以为城市群体系结构的优化提供理论依据,但如何破除行政单元的统计约束一直是关联定量化的难点。以京津冀城市群为研究对象,基于DMSP/OLS夜间灯光亮度表征城市综合实力,通过引力模型测算1993-2013年京津冀城市空间关联强度,分析城市社会经济区位度的时空变化趋势。研究结果表明:京津冀城市群发展极不平衡,北京与天津关联强度值是排序第三位廊坊市的3~5倍;保定市关联强度排序第4,且社会经济区位度呈上升趋势;除廊坊、保定与承德市外,河北省其余各市社会经济区位度呈下降趋势,京津冀地区的极化现象有所加剧。基于夜间灯光亮度的城市空间关联测度聚焦主城区范围,可为京津冀一体化提供定量化决策参考。

关键词: 引力模型, 空间关联, 社会经济区位度, 京津冀城市群

Abstract:

The study of spatial correlation of cities in Urban Agglomeration can provide a theoretical foundation for the structural optimization of Urban Agglomeration system. However, how to get rid of the statistical constraints of administrative unit has been regarded as one of the key difficulties in correlation quantification. This study took Beijing-Tianjin-Hebei Urban Agglomeration as a case study area, and the comprehensive strength of the city was assessed using DMSP/OLS nighttime light data. And spatial correlation intensity of Beijing-Tianjin-Hebei Urban Agglomeration during 1993-2013 was measured with the application of gravity model. In addition, the spatio-temporal variation tendency of social-economic location index was analyzed. The results showed that, the development of cities in Beijing-Tianjin-Hebei Urban Agglomeration was unbalanced, and the spatial correlation intensity of the cities of Beijing and Tianjin was 3-5 times that of Langfang city, the third one in the uban agglomeration. The spatial correlation intensity of Baoding city was ranked the fourth, and its social-economic location index showed an increasing tendency. In addition to the cities of Langfang, Baoding and Chengde, the socio-economic location index showed a downward trend for the rest of the cities of Hebei province, which indicated that the polarization phenomenon had been intensified in Beijing-Tianjin-Hebei Urban Agglomeration. The spatial correlation measurement based on DMSP/OLS nighttime light data focused on the main urban area, which could provide quantitative decision guidance for the integration of Beijing, Tianjin and Hebei.

Key words: gravity model, spatial correlation, social-economic location index, Beijing-Tianjin-Hebei Urban Agglomeration