Using .sup.239+240Pu atmospheric deposition and a simplified mass-balance model to re-estimate the soil erosion rate: a case study of Liaodong Bay in China

By using the mass balance model of .sup.137Cs and introducing .sup.239+240Pu atmospheric deposition, a simplified mass balance model of .sup.239+240Pu was developed and the soil erosion rate was re-estimated. The results indicated that the reference inventory of .sup.239+240Pu was estimated to be 88...

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Published inJournal of radioanalytical and nuclear chemistry Vol. 307; no. 1; p. 599
Main Authors Zhang, Ke-xin, Pan, Shao-ming, Xu, Yi-hong, Cao, Li-guo, Hao, Yong-pei, Wu, Meng-meng, Xu, Wei, Ren, Shan
Format Journal Article
LanguageEnglish
Published Springer 01.01.2016
Subjects
Analysis
Case studies
Soil erosion
Tracers (Biology)
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Summary:By using the mass balance model of .sup.137Cs and introducing .sup.239+240Pu atmospheric deposition, a simplified mass balance model of .sup.239+240Pu was developed and the soil erosion rate was re-estimated. The results indicated that the reference inventory of .sup.239+240Pu was estimated to be 88.4 Bq/m.sup.2 in Liaodong Bay. In addition, the atomic ratios of .sup.240Pu/.sup.239Pu in all core samples were approximately 0.18, which indicated that the major source of Pu was the global fallout. Statistical analysis of the erosion rates derived from the model demonstrates that the .sup.239+240Pu atmospheric deposition is a feasible way to estimate the soil erosion rate and further improve tracer technique to assess the soil erosion rate.
ISSN:0236-5731
DOI:10.1007/s10967-015-4208-0