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Heavy Metal in Agriculture Soils in Nanhai City

Liao Jinfeng  
Heavy metal may be harmful to crops when its content in soils goes beyond the normal level.In this paper,discussion on content of Cu,Pb,Zn,Cd,Cr,Ni in agriculture soils in Nanhai city was presented.The content of heavy metal in agriculture soils is controlled by a series of factors such as irrigation of field with waste water,soil parent material,soil property,etc.The content of heavey metal in the southern and eastern regions of Nanhai city is more higher than in the northern and western part.
【CateGory Index】: S155.4:O614
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