基于夜间灯光数据的环渤海地区城市化空间模式和过程研究
  • 【摘要】

    This paper firstly derived urban information from Defense Meteorological Satellite Program/Operational Linescan System (DMSP/OLS) data in 1992, 1996 and 1998 with the support of statistical data, and ... 展开>>This paper firstly derived urban information from Defense Meteorological Satellite Program/Operational Linescan System (DMSP/OLS) data in 1992, 1996 and 1998 with the support of statistical data, and then developed three basic urban models of polygon-urbanization, line-urbanization and point-urbanization in urban agglomerations from viewpoint of spatial analysis. The conclusions are as follows: (1) Urban patch numbers in the Bohai Rim increased from 1659 to 2053 with an annual average increase number of about 66. Meanwhile, the small urban patches accounted for a larger proportion in the region and the patch density increased fast. In addition, the urban barycenter of the region showed a moving trend toward northwest from 1992 to 1998. Urbanization in the Bohai Rim in the 1990s is fast and obvious. (2) Urbanization in the Bohai Rim can be reflected by three basic processes, i.e., the polygon-urbanization around the big cities, the line-urbanization around the transportation lines and the point-urbanization emerging in large areas. Of them, the polygon-urbanization has been in dominance. It is obviously within an effective range of 3-4 km surrounding the urban patches. The line-urbanization and point-urbanization in the region was relatively small, both of which showed an obvious increasing trend. 收起<<

  • 【作者】

    何春阳  李景刚  陈婧  SHI Peijun  CHEN Jin  PAN Yaozhong  LI Jing  ZHUO Li  Ichinose Toshiaki 

  • 【作者单位】

    College of Resources Science & Technology/College of Resources Science & Technology/Japan National Institute of Environmental Studies

  • 【刊期】

    地理学报(英文版) ISTIC SCI 2006年2期

  • 【关键词】

    DMSP/OLS  urbanization agglomeration  urbanization  spatial mode  process  Bohai Rim 

  • 【基金项目】

    中国科学院资助项目