中国地理科学 ›› 2016, Vol. 26 ›› Issue (1): 117-128.doi: 10.1007/s11769-015-0757-y

• 论文 • 上一篇    

Analysis of Urbanization Based on Center-of-gravity Movement and Characteristics in Songhua River Basin of China and its Southern Source Sub-basin between 1990 and 2010

FU Xiao1, SHEN Yuan1,2, DONG Rencai1, DENG Hongbing1, WU Gang1   

  1. 1. State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2014-08-26 修回日期:2014-11-21 出版日期:2016-01-27 发布日期:2015-12-18
  • 通讯作者: DONG Rencai. E-mail:dongrencai@rcees.ac.cn E-mail:dongrencai@rcees.ac.cn
  • 基金资助:

    Under the auspices of National Key Technologies R&D Program (No. 2012BAD22B04), Talent Introduction Project of Jilin Province

Analysis of Urbanization Based on Center-of-gravity Movement and Characteristics in Songhua River Basin of China and its Southern Source Sub-basin between 1990 and 2010

FU Xiao1, SHEN Yuan1,2, DONG Rencai1, DENG Hongbing1, WU Gang1   

  1. 1. State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2014-08-26 Revised:2014-11-21 Online:2016-01-27 Published:2015-12-18
  • Contact: DONG Rencai. E-mail:dongrencai@rcees.ac.cn E-mail:dongrencai@rcees.ac.cn
  • Supported by:

    Under the auspices of National Key Technologies R&D Program (No. 2012BAD22B04), Talent Introduction Project of Jilin Province

摘要:

Urbanization in modern times led to a series of development strategies that brought new opportunities in China. Rapid urbanization caused severe stress to the ecosystems and the environment. Using the center-of-gravity (COG) method and parameters such as population, economy, and land, we studied the urbanization pattern in Songhua River Basin and its southern source sub-basin from 1990 to 2010. Urbanization was analyzed based on the COG position, eccentric distance, movement direction of COG, and distance of COG movement. Various characteristics of urbanization in the southern source sub-basin of the Songhua River were explained in relation to the whole Songhua River Basin. Urbanization in the southern source sub-basin of the Songhua River is balanced, relatively advanced, and stable compared to the whole Songhua River Basin. The average eccentric distance between the urbanization COGs in the Songhua River's south source basin indicated rapid expansion of land urbanization during the span of this study. A basic pattern of urbanization COG in the whole Songhua Basin was observed, but there existed differences among the three aspects of urbanization process. Land urbanization is still in its active stage, so future studies should focus on analysis of such urbanization trends.

关键词: urbanization, Songhua River Basin, southern source sub-basin of Songhua River, center of gravity method, eccentric distance

Abstract:

Urbanization in modern times led to a series of development strategies that brought new opportunities in China. Rapid urbanization caused severe stress to the ecosystems and the environment. Using the center-of-gravity (COG) method and parameters such as population, economy, and land, we studied the urbanization pattern in Songhua River Basin and its southern source sub-basin from 1990 to 2010. Urbanization was analyzed based on the COG position, eccentric distance, movement direction of COG, and distance of COG movement. Various characteristics of urbanization in the southern source sub-basin of the Songhua River were explained in relation to the whole Songhua River Basin. Urbanization in the southern source sub-basin of the Songhua River is balanced, relatively advanced, and stable compared to the whole Songhua River Basin. The average eccentric distance between the urbanization COGs in the Songhua River's south source basin indicated rapid expansion of land urbanization during the span of this study. A basic pattern of urbanization COG in the whole Songhua Basin was observed, but there existed differences among the three aspects of urbanization process. Land urbanization is still in its active stage, so future studies should focus on analysis of such urbanization trends.

Key words: urbanization, Songhua River Basin, southern source sub-basin of Songhua River, center of gravity method, eccentric distance