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

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 fro...

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Bibliographic Details
Published in:ISPRS international journal of geo-information 2018-07, Vol.7 (7), p.241
Main Authors: Chang, Shouzhi, Jiang, Qigang, Wang, Zongming, Xu, Sujuan, Jia, Mingming
Format: Article
Language:English
Subjects:
Area
breakpoint method
Case studies
Changchun
Direction
Economic development
Entropy
Habitat selection
Land use
landscape metric
Methods
Policies
Policy and planning
Population
Regularization
Remote sensing
Rural areas
Sustainability
Topography
Urban areas
urban fringe
Urban planning
Urbanization
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Summary: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.
ISSN:2220-9964
2220-9964
DOI:10.3390/ijgi7070241