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Growth Type and Functional Trajectories: An Empirical Study of Urban Expansion in Nanjing, China
- Source :
- PLoS ONE, PLoS ONE, Vol 11, Iss 2, p e0148389 (2016)
- Publication Year :
- 2016
- Publisher :
- Public Library of Science, 2016.
-
Abstract
- Drawing upon the Landsat satellite images of Nanjing from 1985, 1995, 2001, 2007, and 2013, this paper integrates the convex hull analysis and common edge analysis at double scales, and develops a comprehensive matrix analysis to distinguish the different types of urban land expansion. The results show that Nanjing experienced rapid urban expansion, dominated by a mix of residential and manufacturing land from 1985 to 2013, which in turn has promoted Nanjing's shift from a compact mononuclear city to a polycentric one. Spatial patterns of three specific types of growth, namely infilling, extension, and enclave were quite different in four consecutive periods. These patterns result primarily from the existing topographic constraints, as well as government-oriented urban planning and policies. By intersecting the function maps, we also reveal the functional evolution of newly-developed urban land. Moreover, both self-enhancing and mutual promotion of the newly developed functions are surveyed over the last decade. Our study confirms that the integration of a multi-scale method and multi-perspective analysis, such as the spatiotemporal patterns and functional evolution, helps us to better understand the rapid urban growth in China.
- Subjects :
- Economics
0211 other engineering and technologies
lcsh:Medicine
Social Sciences
Transportation
02 engineering and technology
Empirical Research
Urban Environments
Geographical Locations
Empirical research
Land Use
Microeconomics
Economic geography
lcsh:Science
Geographic Areas
Urban Renewal
Multidisciplinary
Geography
Ecology
05 social sciences
021107 urban & regional planning
Terrestrial Environments
Urban Economics
Urban ecology
Engineering and Technology
050703 geography
Research Article
Urban Areas
China
Asia
Evolutionary Processes
Airports
0507 social and economic geography
Human Geography
Urban planning
Urbanization
Urban Ecology
Evolutionary Biology
Land use
lcsh:R
Ecology and Environmental Sciences
Biology and Life Sciences
Urban economics
People and Places
Spatial ecology
Earth Sciences
lcsh:Q
Subjects
Details
- Language :
- English
- ISSN :
- 19326203
- Volume :
- 11
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- PLoS ONE
- Accession number :
- edsair.doi.dedup.....df305bb7ae5cbc8b5f6f0c5d88a7d104