Long-term cycling of 137Cs in Pinus Kesiya at Wat Chan Thailand

被引：0
|
作者：
Itthipoonthanakorn, T. [1 ]
Shaw, G. [2 ]
机构：
[1] Off Atoms Peace, 16 Vibhavadi Rangsit Rd, Bangkok 10900, Thailand
[2] Univ Nottingham, Sch Biosci, Loughborough LE12 5RD, England
来源：
INTERNATIONAL NUCLEAR SCIENCE AND TECHNOLOGY CONFERENCE | 2019年 / 1285卷
关键词：
DEPOSITION; FALLOUT; CS;
D O I：
10.1088/1742-6596/1285/1/012018
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Surface soil and above-ground parts of Pinus kesiya (Three-needled pine) were collected at Wat Chan pine forest to study cycling of Cs-137. Cs-137 derived from nuclear weapons tests up to 1963 was found to have accumulated at a shallow depth (<5 cm) in the forest soil. Calculated total deposition of Cs-137 was in the range of previous studies and could be used as a reference for nuclear test deposition of Cs-137 fallout in northern Thailand and nearby locations. Potassium in soil does not appear to be a good indicator for long-term radiocaesium cycling. Finally, 'available' stable caesium (Cs-133) in the soil was found to be an appropriate indicator for studying uptake of Cs-137 by Pinus kesiya at Wat Chan.
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页数：6
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