The Spatial Differential Features of Construction Land Changes in China
Wang Wengang,Pang Xiaoxiao,Song Yuxiang,Li Ruzi (College of Urban and Environmental Science,Northeast Normal University,Changchun 130024,China)
This paper adopts coefficient of variation,the Theil index and spatial autocorrelation to explore the the regional difference and the spatial correlation of regional land use changes in China during 2002—2008.Results show that:(1)there is a overall decreasing trend on regional land use changes in China during 2002—2008,but the regional differences are still relatively obvious.(2)the scale expansion of construction land in China appears the obvious spatial dual structure,with "H-H" clusters in eastern region and "L-L" clusters in western region.Conclusions are as follows: the land use degree in China is on the top of "inverted U curve",and still in a high pressure.Therefore,the government should formulate regional land supply policies scientifically according to the regional difference and the spatial correlation of regional land use changes.
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