Abstract: The forms,contents and distribution of Cu,Zn in some orchard soils in Shandong Province were studied.The results showed that the contents of total Cu,Zn in orchard soils were higher than in other agricultural soils.Distribution of the elements varied with soil and form.For Cu,the distributions of different forms of the element showed a similar trend:residual>organically bound>precipitate>exchangeable in brown soil and cinnamon soil and residual>precipitate>organically bound>exchangeable in Chao soil and Shajiang black soil.But the distribution of different forms of Zn element was in the trend of residual>precipitate>organically bound>exchangeable in the four soils.Based on the physical and chemical properties of soils and the contents of total Cu,Zn in the soils studied,it is learned that the distribution of different forms of Cu,Zn elements in some soils is related to the properties of soils.With pH increasing,the contents of exchangeable Cu,Zn decreased in some orchard soils.And the contents of some forms of Cu,Zn are related to the contents of total Cu,Zn.Significant positive correlation existed between precipitate Cu and total Cu with correlation coefficient being 0.824.And so was the relationship between residual Zn and total Zn and its correlation coefficient was 0.993.

Key words: Cu, Zn, chemical forms, soil contamination, orchard soils