Next Article in Journal
A Spatio-Temporal Bayesian Model for Estimating the Effects of Land Use Change on Urban Heat Island
Previous Article in Journal
Dynamic 3D Simulation of Flood Risk Based on the Integration of Spatio-Temporal GIS and Hydrodynamic Models
Open AccessArticle

Simulating Uneven Urban Spatial Expansion under Various Land Protection Strategies: Case Study on Southern Jiangsu Urban Agglomeration

by Pingxing Li 1,2 and Hui Cao 1,2,*
1
Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
2
Key Laboratory of Watershed Geographical Sciences, Chinese Academy of Sciences, Nanjing 210008, China
*
Author to whom correspondence should be addressed.
ISPRS Int. J. Geo-Inf. 2019, 8(11), 521; https://doi.org/10.3390/ijgi8110521
Received: 20 September 2019 / Revised: 12 November 2019 / Accepted: 13 November 2019 / Published: 19 November 2019
Urban spatial expansion (USE) is an uneven process affected by both natural and human factors, and land use regulation policy is of significance. To indicate the potential effects of different policies at a regional scale and then improving them under the context of increasing emphasis on land protection, we take Southern Jiangsu Urban Agglomeration (SJUA) in eastern China as a case study. Based on USE simulation with a minimum cumulative resistance (MCR) model under four scenarios related with arable and ecological land protection, we analyze the spatial differentiation of newly added urban construction lands and examine the changes of urban system with fractal analysis. Results indicate the allocations of newly added urban construction land differs by scenarios as well as total expanding amounts, and larger cities tend to grow faster. The share of the four largest cities (Suzhou, Nanjing(S), Wuxi, and Changzhou) were mostly higher than 40%. Accordingly, the final area of all cities was linearly corrected with their extant sizes in 2010. However, the differentiated allocations of newly added urban lands related to both increasing expanding amounts and different scenarios caused differences in the said linear relationships and also influenced urban rank-size in different degrees. It is concluded that the MCR model is feasible for simulating regional scale urban expansion and land protection strategies do not induce dramatic changes to the basic structures of regional urban system, but they are slightly different as land protection strategies change. The spatial distribution of protected lands affect the differentiation of both the predicted expanding amount of different cities and the regional urban systems significantly. It is of importance to optimize the spatial distribution of protected lands to regulate regional scale USE patterns and also urban systems properly. View Full-Text
Keywords: uneven urban spatial expansion; land protection strategy; multi-scenario simulation; fractal structure; Southern Jiangsu Urban Agglomeration (SJUA) uneven urban spatial expansion; land protection strategy; multi-scenario simulation; fractal structure; Southern Jiangsu Urban Agglomeration (SJUA)
Show Figures

Figure 1

MDPI and ACS Style

Li, P.; Cao, H. Simulating Uneven Urban Spatial Expansion under Various Land Protection Strategies: Case Study on Southern Jiangsu Urban Agglomeration. ISPRS Int. J. Geo-Inf. 2019, 8, 521.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop