Journal of Geographical Sciences ›› 2019, Vol. 29 ›› Issue (8): 1363-1380.doi: 10.1007/s11442-019-1664-5

• Research Articles • Previous Articles     Next Articles

Exploring spatial-temporal change and gravity center movement of construction land in the Chang-Zhu-Tan urban agglomeration

LI Zhuo1,2, JIANG Weiguo1,2,*(), WANG Wenjie3, LEI Xuan4, DENG Yue1,2   

  1. 1. State Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
    2. Key Laboratory of Environmental Change and Natural Disaster of Ministry of Education, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
    3. Chinese Research Academy of Environmental Sciences, Beijing 100012, China
    4. Tianjin University Research Institute of Urban Planning, Tianjin 300073, China
  • Received:2018-09-04 Accepted:2018-12-07 Online:2019-08-25 Published:2019-12-13
  • Contact: JIANG Weiguo E-mail:jiangweiguo@bnu.edu.cn
  • About author:Li Zhuo (1996-), PhD, specialized in urban wetland and urban ecology. E-mail: lizhuo@mail.bnu.edu.cn
  • Supported by:
    National Natural Science Foundation of China(No.41571077);National Key Research and Development Program of China(No.2016YFC0503002)

Abstract:

Urban agglomeration is caused by the continuous acceleration of the urbanization process in China. Studying the expansion of construction land can not only know the changes and development of urban agglomeration in time, but also obtain the great significance of the future management. In this study, taking Changsha-Zhuzhou-Xiangtan (Chang-Zhu-Tan) urban agglomeration in Hunan province as a study area, Landsat images from 1995 to 2014 and Autologistic-CLUE-S model simulation data were used. Moreover, several factors including gravity center, direction, distance and landscape index were considered in the analysis of the expansion. The results revealed that the construction area increased by 132.18%, from 372.28 km 2 in 1995 to 864.37 km 2 in 2014. And it might even reach 1327.23 km 2 in 2023. Before 2014, three cities had their own respective and discrete development directions. However, because of the integration policy implementation in 2008, the Chang-Zhu-Tan began to gather, the gravity center moved southward after 2014, and the distance between cities decreased, which was in line with the development plan of urban expansion. The research methods and results were relatively reliable, and these results could provide some reference for the future land use planning and spatial allocation in the urbanization process of Chang-Zhu-Tan urban agglomeration.

Key words: construction land, spatial change, gravity center, Chang-Zhu-Tan urban agglomeration