Published March 1999 | Version v1
Journal article Metadata-only

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

Creators

  • 1. Kyushu Univ., Fukuoka (Japan). Radioisotope Center
  • 2. Kyushu Univ., Fukuoka (Japan). Dept. of Chemistry
  • 3. Kyushu Univ., Sasaguri (Japan). Research Div. of University Forests

Description

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. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
239
Journal Issue
3
Journal Page Range
p. 549-554
ISSN
0236-5731
CODEN
JRNCDM

Conference

Title
Asia-pacific symposium on radiochemistry
Acronym
APSORC '97
Dates
6-9 Oct 1997
Place
Kumamoto (Japan)

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
30016128
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S54: ENVIRONMENTAL SCIENCES;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALPHA SPECTROSCOPY; BERYLLIUM 7; CANOPIES; FORESTS; GAMMA SPECTROSCOPY; LEAD 210; NATURAL RADIOACTIVITY; POLONIUM 210; RADIONUCLIDE MIGRATION; RAIN; SOILS; THROUGHFALL; WOOD
Descriptors DEC
ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; ATMOSPHERIC PRECIPITATIONS; BERYLLIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ENVIRONMENTAL TRANSPORT; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY NUCLEI; HYDROGEN COMPOUNDS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LEAD ISOTOPES; LIGHT NUCLEI; MASS TRANSFER; NANOSEC LIVING RADIOISOTOPES; NUCLEI; OXYGEN COMPOUNDS; POLONIUM ISOTOPES; RADIOACTIVITY; RADIOISOTOPES; RAIN WATER; SPECTROSCOPY; WATER; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
7 refs.