摘要
Studying the process and characteristics of urban land change in different phases of urbanization and different economic development is much important for understanding urban land change and management at a macro level.Taking the example of Jiangsu Province,the present paper studied the correlation between urban land change process and socioeconomic development from 1981 to 2003 on the basis of statistical data.The results showed the following three aspects.First,urban land area has changed periodically and the research duration can be divided into two periods:from 1981 to 1994 and from 1995 to 2003.In each period,the changing trend is the same,i.e.slow at first and then quick.Studying from the comprehensive change status,the characteristic of fluctuant change is significant with three acute change pinnacles in 1988,1991 and 2002 which were corresponded to turning point years of economic development phases of Jiangsu Province respectively.Second,the synchronization between urban land change and urbanization level change is not strict.With the evolution of urbanization phases,the change pace of urbanization level increased remarkably,but urban land change rate did not increase significantly accordingly.Third,the area of urban land has exponentially increased with the increase of per capita GDP.In different economic development levels classified by per capital GDP,land resource cost for economic development is different,respectively 29.01 hm2,26.34 hm2,26.22 hm2,and 11.14 hm2 for the increase of 100 million RMB GDP when the per capita GDP is under 1000,1000–2000,2000–5000 and over 5000 RMB.
