Fig 1.
Flow chart of the analytical framework.
Fig 2.
Distribution of cities in Hunan Province and its adjacent cities.
(Reprinted from http://www.ngcc.cn/ngcc/ under a CC BY license, with permission from the National Geomatics Center of China, original copyright 2012).
Table 1.
Urban gravity index system.
Table 2.
The external and internal forces of the border city in Hunan Province.
Table 3.
The urban gravity matrix of cities in Hunan Province in the 2002 year.
Fig 3.
Temporal changes of the new proposed DEZ of Hunan Province from 2002 to 2013.
(Reprinted from http://www.ngcc.cn/ngcc/ under a CC BY license, with permission from the National Geomatics Center of China, original copyright 2012).
Table 4.
The components of cities in each EZ from 2002 to 2013 year.
Fig 4.
Temporal changes of traditional DEZ scheme of Hunan Province from 2002 to 2013.
(Reprinted from http://www.ngcc.cn/ngcc/ under a CC BY license, with permission from the National Geomatics Center of China, original copyright 2012).
Fig 5.
Cross-provincial regional integration and economic contact in RTER.
(Reprinted from http://www.ngcc.cn/ngcc/ under a CC BY license, with permission from the National Geomatics Center of China, original copyright 2012).