Geochemical Characteristics of Soil in Alluvial Plain of the Yellow River in Shandong Province

On the basis of collecting one surface soil sample in per 1km 2,collecting one analysis sample in per 4km 2,and collecting one analysis sample in per 16km2,geochemical survey of soil in the Yellow River alluvial plain is carried out.54 indicators are tested,such as Ag,As,Au,B,Ba,Be,Bi,Br,C,Cd,Ce,Cl,Co,Cr,Cu,Fa,etc.On the basis of statistics of geochemical parameters of soil in surface and deep part,differences are analyzed comparing with simliar parameters in other areas.Contrasting the variation of gochemical content values between soil in surface and deep part,it is regarded that the contents of most indicators in surface soil inherited the characteristics of soil parent material,and human activities can only effect it a little.But some indicators,such as Corg,N,Se,S,P,Br,Hg have been concentrated significantly in surface soil.It reflects that the role of surface and factors and human activities have a significant effect on the distribution of these indicators.