【摘要】 研究了（８９）Ｓｒ在陆地作物菜豆中的积累动态及对水体的影响。结果表明，土壤中的（８９）Ｓｒ较迅速地向菜豆转移，其比活度与时间成指数正相关，而土壤中（８９）Ｓｒ的比活度与深度呈指数负相关。通过雨水淋溶和渗漏，土壤中的（８９）Ｓｒ约５％进入水体；水体内各组分的分配为池水较低，底泥较高；而水生生物中金鱼藻较低，鱼和螺蛳中最高，表现了鱼和螺蛳对水体中的（８９）Ｓｒ有较大的浓集作用。更多还原

【Abstract】 The accumulative dynamic of 89Sr in the kidney bean and its effect on the waters were studied. It is shown that 89Sr would tyansfer to kidney beau rapidly and the accumulation of 89Sr in the kidney beau follows a positive exponential relation with time, but follows a negative exponentical relation with depth of the soil. After the soil was leached and seeped by rain, the 89Sr would enter into waters for 5% and be distributed to each component of waters. The specific activity of 89Sr was low in the waters and honewort, high in the bottom mud, and highest in the fish and snail,showing that fish and snail can strongly concentrate 89Sr in waters.更多还原