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ISPRS Int. J. Geo-Inf. 2018, 7(7), 241; https://doi.org/10.3390/ijgi7070241

Extraction and Spatial–Temporal Evolution of Urban Fringes: A Case Study of Changchun in Jilin Province, China

1
College of Geo-Exploration Science and Technology, Jilin University, Changchun 130026, China
2
Changchun Institute of Urban Planning and Design, Changchun 130022, China
3
Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
4
Jilin Province Zhongshi Testing Company, Changchun 130000, China
*
Author to whom correspondence should be addressed.
Received: 12 May 2018 / Revised: 8 June 2018 / Accepted: 18 June 2018 / Published: 22 June 2018
(This article belongs to the Special Issue Urban Environment Mapping Using GIS)
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Abstract

An urban fringe area, depicted as a typical ecotone, is a region where both social and environmental problems are concentrated. Identifying and evaluating the spatial–temporal characteristics of urban fringe areas is significant for future development. On the basis of the land use data extracted from remote sensing data, the Shannon diversity index (SHDI) of each unit can be calculated, and identifying the urban fringe area by the breakpoint method is reliable. By using the rapidly growing Changchun as example, this study identifies the urban fringe of Changchun in 1995, 2005, and 2015 by applying the breakpoint method. The expansion amount, change mode, direction of expansion, landscape, and influence factors are evaluated. Policy and planning are the main factors influencing the development direction of the Changchun fringe area. The urban fringe area of Changchun City is extended to the east, southeast, and north. From 1995 to 2005, the outlying expansion was the dominant type. The main change mode was the infilling type due to the reduction of available land, from 2005 to 2015. In accordance with the landscape metrics, the landscape within the urban fringe transformed from fragmentation to regularization. The development of the urban fringe also transformed from a disorderly to an orderly manner. View Full-Text
Keywords: urban fringe; landscape metric; remote sensing; breakpoint method; Changchun urban fringe; landscape metric; remote sensing; breakpoint method; Changchun
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Chang, S.; Jiang, Q.; Wang, Z.; Xu, S.; Jia, M. Extraction and Spatial–Temporal Evolution of Urban Fringes: A Case Study of Changchun in Jilin Province, China. ISPRS Int. J. Geo-Inf. 2018, 7, 241.

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