Sanzharova N I, Fesenko S V, Aleksakhin R M, Abramova T N, Kuznetsov V K
Radiats Biol Radioecol. 1995 May-Jun;35(3):307-15.
Analysis of the dynamics of 137Cs content in the main kinds of plant and animal products obtained on the basis of a separate farm located at 40-50 km to the north from Chernobyl NPP has shown that in 1987-1991 the decrease of 137Cs transfer from soil to agricultural crops was on the average 2--4-fold, and for milk--6--7-fold during the pasture period and 10-fold--during stabling one. The half-life periods of decrease of 137Cs constant in the main kinds of plant production vary from 2.1 to 5.9 years; for milk this parameter equals to 1.4 years in the pasture period, and in the stabling one--2.8 years. The main contribution (67-80%) to the decrease of 137Cs transfer to plant products is made by biogeochemical processes causing decrease of mobility of 137Cs in soil; as for agrochemical countermeasures, these contribute 20--33%. Decrease of contamination of milk, on the contrary, is mainly due to realization of countermeasures--contribution of the latter reaches 60%.
对位于切尔诺贝利核电站以北40 - 50公里处一个独立农场的主要动植物产品中137Cs含量动态的分析表明，1987 - 1991年期间，土壤中137Cs向农作物的转移平均减少了2 - 4倍，而牛奶中的137Cs含量在放牧期减少了6 - 7倍，在圈养期减少了10倍。主要植物产品中137Cs含量减少的半衰期从2.1年到5.9年不等；牛奶中该参数在放牧期为1.4年，在圈养期为2.8年。导致土壤中137Cs迁移性降低的生物地球化学过程对137Cs向植物产品转移减少的贡献最大（67 - 80%）；至于农业化学对策，其贡献为20 - 33%。相反，牛奶污染的减少主要归因于对策的实施，后者的贡献达到60%。
