JOURNAL OF NATURAL RESOURCES ›› 2018, Vol. 33 ›› Issue (2): 219-232.doi: 10.11849/zrzyxb.20161373

• Resource Economics • Previous Articles     Next Articles

Decoupling Relationship between Urban Expansion and Economic Growth and Its Spatial Heterogeneity in the Yangtze Economic Belt

HUANG Mu-yi1, YUE Wen-ze2, HE Xiang1   

  1. 1. School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China;
    2. Department of Land Resources Management, Zhejiang University, Hangzhou 360058, China
  • Received:2016-12-12 Revised:2017-02-24 Online:2018-02-23 Published:2018-02-23
  • Supported by:
    Key Project of National Social Science Foundation, No. 14AZD124Philosophy and Social Sciences Planning Project of Anhui Province, No. AHSKQ2016D23Key Project of Excellent Young Scholars in Universities of Anhui Province, No. 2013SQRL047ZDSpecial Project for Protection of Huizhou Style Buildings of Financial Department of Anhui Province and Department of Housing and Urban-Rural Development of Anhui Province, No. HPZX2013-01. ]

Abstract: The decoupling relationship between construction land expansion and economic growth and its heterogeneity during 2000-2013 in the Yangtze Economic Belt (YEB) are analyzed at the prefecture-level administrative units based on GIS platform, Exploratory Spatial Data Analysis (ESDA) method and decoupling model. The results indicate that: 1) In recent 15 years, the construction land expansion and the economic growth in the YEB had distinctive stages and regional characteristics. Hot spot analysis shows that the hot spots of construction land growth were diffusive and cold spots of construction land growth gradually shrank. However, the evolution pattern of hot spots and cold spots of economic growth was not in step with the evolution pattern of construction land. 2) During 2000-2013, the coupling relationship between construction land expansion and economic growth in the YEB experienced from the processes of “negative decoupling and weak decoupling” to “weak decoupling” and “weak decoupling and coupling”. According to the calculation, the cities with “negative decoupling” accounted for 12.15% of all cites in the Yangtze River Delta during 2010-2013, decreasing 17.76% compared to the stage from 2000 to 2005. Meanwhile, the cities with “weak decoupling” and “strong decoupling” account for 65.42% of all cites in the Yangtze River Delta during 2010-2013, rising 11.22% compared to the stage from 2000 to 2005. On the whole, the decoupling degree between construction land expansion and economic growth in the YEB improved in recent 15 years. 3) Spatial heterogeneity analysis of decoupling degree indicates that the decoupling relationship between urban expansion and economic growth in the YEB presented weak spatial autocorrelation in all stages. Generally, the decoupling degree of city clusters in the Yangtze River Delta was gradually increasing, better than the decoupling degree of city clusters along the middle reaches of the Yangtze River and city clusters of Chengdu-Chongqing and Yunnan-Guizhou. The evolution mechanism of decoupling degree was closely connected with urban industrial structure, land use efficiency and land use mode.

Key words: decoupling model, economic growth, spatial heterogeneity, the Yangtze Economic Belt, urban expansion

CLC Number: 

  • F062.1