Background data of 8 heavy metals in agricultural soils classified according to soil basic categories and limited within a suburban district were studied.
以县区为单位，以土属为单元，对农业土壤中8种重金属元素背景值进行研究。
Background data of 8 heavy metals in agricultural soils classified according to soil basic categories and limited within a suburban district were studied.
以县区为单位，以土属为单元，对农业土壤中8种重金属元素背景值进行研究。
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