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研究了60Co 在菜豆-土壤系统中的迁移、消长与分配动态. 结果表明:(1)60Co 由表土进入系统后即在系统中发生迁移,菜豆主要经根吸收60Co,然后向其各部位转移和分配. 根中60Co 放射活度显著高于植株其它部位.(2)土壤中60Co 活度由表层至底层呈单项指数负相关.90% 以上集中表层6cm 之内. (3)60Co 在菜豆-土壤系统中活度的动态变化规律由多项指数描述
The results showed that: (1) 60Co migrated from the topsoil into the system and absorbed mainly through the roots of 60Co, and then transferred to various parts of the soils and soils (2) The 60Co activity in the soil from the surface to the bottom was a single exponential negative correlation, more than 90% of the concentrated surface within 6cm. (3) 60Co in the bean - soil Dynamic changes in the activity of the system by a number of index described