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Frontiers of Environmental Science & Engineering

ISSN 2095-2201

ISSN 2095-221X(Online)

CN 10-1013/X

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Front. Environ. Sci. Eng.    2015, Vol. 9 Issue (2) : 298-309    https://doi.org/10.1007/s11783-014-0639-z
RESEARCH ARTICLE
Driving mechanism and boundary control of urban sprawl
Dongmei JIANG1,2, Xiaoshun LI1,2(), Futian QU2, Mingyan LI3, Shaoliang ZHANG1, Yunlong GONG1, Xiaoping SHI2, Xin CHEN1
1. School of Environment and Spatial Informatics, China University of Mining & Technology, Xuzhou 221116, China
2. College of Public Administration, Nanjing Agricultural University, Nanjing 210095, China
3. Institute of Economics, Zhejiang Academy of Social Sciences, Hangzhou 310025, China
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Abstract

Since the reform and opening-up, China’s economy has achieved remarkable development and so does the urbanization. However, there is an unavoidable contradiction between urban sprawl and the protection of arable land and the environment. By redefining the urban sprawl boundary, this paper is to provide a solution for the conflict above on the China’s urbanization context. The ideal boundary, moderate boundary and limit boundary are defined for urban sprawl in space. Taking Nanjing city as a case, the three urban sprawl boundaries are estimated in this paper based on the calculation of agricultural land resources value in Nanjing. The results show that 1) the integrated value of agricultural (cultivated) land resources in Nanjing is 1.55 × 107 CNY·hm−2, the economic value accounts for only 8.74% of the integrated value, while 91.26% of the integrated value has not revealed itself due to the existing institutional arrangements, policy distortions, and imperfect land market; 2) it is difficult to define the ideal and moderate boundaries due to the relatively low price of North Nanjing. In South Nanjing the land price is expensive and the ideal, moderate and limit boundaries are expanded to Jiangning, Qixia, and Yuhuatai; 3) the city scale of South Nanjing should be limited within 5.82 × 104 hm2, which is roughly the same as the designated size of 5.81 × 104 hm2 in the urban planning. It is suggested that the rational scope of urban expansion should be controlled within the moderate boundary.

Keywords urban sprawl      rational expansion      driving forces      boundary control      Nanjing     
Corresponding Author(s): Xiaoshun LI   
Online First Date: 18 February 2014    Issue Date: 13 February 2015
 Cite this article:   
Dongmei JIANG,Xiaoshun LI,Futian QU, et al. Driving mechanism and boundary control of urban sprawl[J]. Front. Environ. Sci. Eng., 2015, 9(2): 298-309.
 URL:  
https://academic.hep.com.cn/fese/EN/10.1007/s11783-014-0639-z
https://academic.hep.com.cn/fese/EN/Y2015/V9/I2/298
Fig.1  Land markets, government policy and urban sprawl
Fig.2  Land value and urban growth in China
cultivated land value specific meaning quantitative methods or models
economic value the income from its food production income approach
social security value its life security, pension security, unemployment insurance, food security and it can absorb the rural labor force substitution method
ecological value clean air and beautify environment, soil conservation, maintaining biodiversity, degradation of waste and other functions comparison method
Tab.1  Components of cultivated land value
land and real estate transaction types eight districts in South Nanjing Pukou Jiangning Liuhe total
house rented 2971 125 275 230 3601
house sale 854 82 227 140 1303
commercial housing development 549 16 13 2 580
land sell and transfer 233 30 130 290 683
land expropriation 111 10 65 186
total 4718 263 710 662 6353
Tab.2  Type and location of sample parcels in Nanjinga)
Fig.3  Distribution of samples in Nanjing
value structure value size /(106?Yuan·hm−2) proportion of every value /%
economic value 1.35 8.74
social value living security value 10.83 6.15 70.08 39.77
employment security value 2.51 16.25
food security value 2.17 14.06
ecological value 3.27 21.18
total 15.45 100.00
Tab.3  Value of agricultural (cultivated) land resources in Nanjing in 2007a)
Fig.4  Three sprawl boundaries in Nanjing
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