采用不同方式将（８９）Ｓｒ引入茶树－土壤系统．结果表明，由茶树地上部引入的（８９）Ｓｒ在茶树叶中的浓度比由土壤引入的高得多；在同一引入处理中，老叶中的（８９）Ｓｒ浓度要比嫩梢高．（８９）Ｓｒ在不同方法引入处理的茶树叶中的消长规律不同：由地上部引入（８９）Ｓｒ的，其在老叶、嫩梢中的浓度随时间延长而减少；由土壤引入的，嫩梢中的（８９）Ｓｒ浓度起初随时间延长而增高，在达到某一值后便缓慢降低，而老叶中的（８９）Ｓｒ浓度起初增加较快，一定时间后便逐渐趋缓并达一饱和值。还确定了嫩梢、老叶对（８９）Ｓｒ的ＣＦ（浓集系数）值． Different ways were adopted to introduce (89) Sr into the tea-soil system. The results showed that the concentration of (89) Sr introduced from tea shoots was significantly higher in tea leaves than that in soil, and the concentration of (89) Sr in old leaves was higher than that in shoots. (89) The law of the growth and decline of Sr in tea leaves treated by different methods was different: the concentration of Sr in the old leaves and young shoots decreased with time after the introduction of (89) Sr from aboveground; The (89) Sr concentration in the shoots increased initially with increasing time and then slowly decreased after reaching a certain value. However, the (89) Sr concentration in the old leaves initially increased rapidly and gradually decreased after a certain period of time Saturation value. The CF (Concentration Coefficient) value of (89) Sr was also determined for young shoots and old leaves.