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有关放射性裂变产物在土壤中的迁移及作物对这些裂变产物吸收的研究工作已有许多报道,其结果表明,在这些过程中土壤有机质起着相当大的作用,在这些报道里多是用腐殖质或未分离的有机质进行试验的。本工作旨在研究土壤有机质单个组分对~(90)Sr、~(137)Cs的移动性及可给性的影响。将H~+型腐殖酸和富里酸的金属有机络合物加到焙烧过的土壤及石英砂中进行植物盆栽试验,然后测定植物对这些核素的吸收量。
Much research has been reported on the migration of radioactive fission products into soils and the uptake of these fission products by crops. The results show that soil organic matter plays a significant role in these processes, and in these reports mostly humic substances or Unseparated organic matter tested. The purpose of this work is to study the effects of individual components of soil organic matter on the mobility and availability of ~ (90) Sr and ~ (137) Cs. The H + -type humic acid and fulvic acid metal organic complexes were added to the calcined soil and quartz sand for potting experiments, and then measured the plant’s absorption of these nuclides.