Abstract:Taking the basic farmland of Shandong Province as the study target, heavy metal contents in 1989 and 2009 of the soils were measured and compared. The results indicated that the contents of total Cu, Zn and Pb in 28.78%, 5.26% and 8.00% of the samples were respectively higher than the 2nd standards of the Soil Environmental Quality Standards (GB15618-1995). The content of total Pb changed most which were increased by 5.81 times in cinnamon soil while total Cd changed least which only increased by 1.33 times in brown soil. The change ranges of total Zn, Cu, Pb and Cd were in an order of cinnamon soil>fluvo-aquic soil>brown soil. The contents of available Cu and Zn were increased by 1.22-1.70 times and 11.50-16.60 times respectively. The accumulation rates of heavy metals were in an order of cinnamon soil≈fluvo-aquic soil>brown soil. The accumulation rates and annual change rates of Cu, Zn and Pb were higher than those of paddy soil in Tai Lake region but that of Cd inversely.