Study on Correlation between Arable Land Area Changes and Economic Growth in Tangshan City

Based on the statistical data in Tangshan City during 1978-2007,Selecting arable land area and GDP per capita as indices,the change processes and correlation between arable land area and economic growth were analyzed.The results showed that the economic growth of Tangsham City since 1978 was very rapid.The arable land reduced gradually and the arable land area showed a logarithmic decreasing trend with the increasing of per capita GDP.Based on this,some proposals were put forward for strengthening the management of arable land resources continuously,especially the management of construction occupation on arable land.