Foliar and root uptake of 134Cs, 85Sr and 65Zn in processing tomato plants (Lycopersicon esculentum Mill.)

被引：30

作者：

Brambilla, M ^{[1
]}

Fortunati, P ^{[1
]}

Carini, F ^{[1
]}

机构：

[1] Univ Cattolica Sacro Cuore, Dept Agr & Environm Chem, Fac Agr Sci, Sect Soil Chem, I-29100 Piacenza, Italy

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2002年 / 60卷 / 03期

关键词：

tomato; wet deposition; radionuclides; foliar absorption; root uptake; caesium; strontium; zinc;

D O I：

10.1016/S0265-931X(01)00109-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The results of an experimental study on the behaviour of Cs-134, Sr-85 and Zn-65 in processing tomato plants grown in peat substrate are presented. Plants were contaminated by wet deposition Of Cs-134, Sr-85 and Zn-65. either by sprinkling the above ground part at two phenological stages or by administering Cs-134, Sr-85 and Zn-65 to the soil, The plants contaminated at the second phenological stage intercepted 38.3% less than those contaminated at the first stage. although leaf area increased by more than double. Transfer coefficients from peat soil to ripe fruit for Cs-134 are significantly higher than those for Sr-85 and Zn-65. Leaf to fruit transfer coefficients for Cs-134 are one order of magnitude higher than for Zn-65 and two orders higher than for Sr-85. Only when deposition affects fruits. as at the second phenological stage. are transfer coefficients to fruits similar for the three radionuclides. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：351 / 363

页数：13

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