Abstract:

As the vector of regional development,utilization status of land resources has close relationship with the level of social economic development.Data of land use,GDP,fixed assets investment,primary industry,secondary industry and tertiary industry in recent 10 years in Jiangsu Province were used to figure out the land use gravity and economy gravity center in every year and quantitatively express the shift route of land use and economy gravity center.On the basis of the result,the difference of utilization status of land use and spatial difference of social economic development in regions of Jiangsu Province was analyzed.Influencing factors of dynamic migration about land and economic factors were also analyzed and the relation between land use and economy gravity center was revealed.Results showed that:gravity center of farmland moved to northwest during 1997~2006 while the one of traffic and residential land moved to west during 1997~2001 and southeast during 2001~2006.Totally,gravity center of GDP moved to southeast in the past 10 years while the primary industry moved to northwest,secondary industry and tertiary industry moved to southeast,but the change of fixed assets investment gravity center showed irregularity.The shift route of land use gravity center corresponded with the present situation of land use of Jiangsu Province.And the shift route of economy gravity center showed that the region discrepancy in Jiangsu Province was extended.The gravity center of GDP,secondary industry and tertiary industry will move to the south Jiangsu in the coming years,but the speed will be decelerated,and the shift will strengthen in longitude and the shift trend of land use gravity center will also be reinforced.〖