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The influence of iron-humus compounds on ~(90)Sr fixation in soil

机译:铁 - 腐殖质化合物对土壤〜(90)SR固定的影响

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The relationship between the content of iron-organic compounds in soil and the soil capacity for ~(90)Sr fixation has been studied. The distribution of Fe, Al, and ~(90)Sr by organic matter fractions of different soil types has been analyzed. It is shown that the larger part of iron-humus compounds and adsorbed ~(90)Sr in soddy-podzolic soil are concentrated in the fraction of fulvic acids. In peat soil, more than 70 percent ~(90)Sr is fixed in the fraction of nonhydrolyzable residue (humin fraction); the content of iron-humus compounds in this fraction does not exceed 20 percent of their total amount in the soil.
机译:研究了土壤中铁 - 有机化合物含量与土壤容量之间的关系,研究了〜(90)SR固定。 分析了通过不同土壤类型的有机质部分的Fe,Al和〜(90)Sr的分布。 结果表明,在富含豆荚中的铁 - 腐殖质化合物和吸附的〜(90)Sr的较大部分浓缩在富甲酸的级分中。 在泥炭土壤中,超过70%〜(90)SR在不可溶液残留物(疏水级分)的一部分中固定; 该级分中的铁腐殖质化合物的含量不超过其土壤总量的20%。

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