Distribution and mean residence time of natural radionuclides in the forest ecosystem

Shinji Sugihara, S. Osaki, T. Baba, Y. Tagawa, Y. Maeda, Y. Inokura

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Activity concentrations of radionuclides, 7Be 210Pb and 210Po, in precipitation (rain, throughfall and stemflow), wood and soil were determined by using gamma-ray and alpha-ray spectrometry to estimate the migration behavior of these radionuclides in the forest canopy. The activity ratios between output and input precipitations for the forest canopy were 0.53 of 7Be, 0.79 of 210Pb and 1.5 of 210Po for Pasania edulis forest. A dynamic model of the transport and fate of radionuclides in the forest ecosystem was constructed. Mean residence times of radionuclides were 56 days for 7Be, 765 days for 210Pb and 653 days for 210Po for Pasania edulis forest.

Original languageEnglish
Pages (from-to)549-554
Number of pages6
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume239
Issue number3
DOIs
Publication statusPublished - Jan 1 1999

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Radioisotopes
Ecosystems
Ecosystem
Alpha particles
Precipitation (meteorology)
Alpha Particles
Gamma rays
Rain
Spectrometry
Gamma Rays
Dynamic models
Wood
Spectrum Analysis
Soils
Soil
Forests

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

Cite this

Distribution and mean residence time of natural radionuclides in the forest ecosystem. / Sugihara, Shinji; Osaki, S.; Baba, T.; Tagawa, Y.; Maeda, Y.; Inokura, Y.

In: Journal of Radioanalytical and Nuclear Chemistry, Vol. 239, No. 3, 01.01.1999, p. 549-554.

Research output: Contribution to journalArticle

Sugihara, Shinji ; Osaki, S. ; Baba, T. ; Tagawa, Y. ; Maeda, Y. ; Inokura, Y. / Distribution and mean residence time of natural radionuclides in the forest ecosystem. In: Journal of Radioanalytical and Nuclear Chemistry. 1999 ; Vol. 239, No. 3. pp. 549-554.
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