【摘要】 本文通过对五种有毒金属 (Pb ,Hg ,As,Cd ,Cr)被土壤吸附后分配系数及形态变化的测定 ,对它们在土壤中的量变和质变规律进行了探讨 ,从而为推论其吸附机理和防止地下水及农作物污染[1,2 ] 等方面提供了科学依据。更多还原

【Abstract】 In this paper,the assignment coefficients and formation variable of five toxic elements (such as Pb,Hg,As,Cd and Cr) in soil have been determined.The variable regularity in soil has been discussed.A scientific reference has been provided in this paper.On the basis of this reference,we can infer five elements absorption mechanism,and prevent the deep-water and the crops from pollution.更多还原