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SUMMARY:Revisiting Radiocesium Retention in Japanese Cedar: Implications f
 or Post-Accident Forest Recovery
DTSTART;VALUE=DATE-TIME:20260519T093000Z
DTEND;VALUE=DATE-TIME:20260519T100000Z
DTSTAMP;VALUE=DATE-TIME:20260624T082630Z
UID:indico-contribution-3837@indico.tlabs.ac.za
DESCRIPTION:Speakers: Muyiwa Orosun (Institute of Environmental Radioactiv
 ity\, Fukushima University)\nThe long-term management of contaminated fore
 st landscapes depends not only on declining environmental inventories of r
 adiocesium (137Cs)\, but also on how this radionuclide is retained within 
 commercially important tree species. Japanese cedar (Cryptomeria japonica)
 \, which underpins much of Japan’s plantation forestry\, exhibits an unu
 sual internal distribution of 137Cs within wood (stem)\, marked by prefere
 ntial accumulation in heartwood rather than sapwood. This pattern challeng
 es conventional assumptions about radionuclide behavior in woody tissues a
 nd raises questions about the processes controlling internal redistributio
 n and retention. This study synthesizes current knowledge and ongoing work
 s on radial radiocesium dynamics in Japanese cedar\, focusing on anatomica
 l\, physiological\, and environmental factors that may drive these observa
 tions. Key uncertainties are identified\, and directions for future resear
 ch are outlined to improve predictive capability and inform risk-based dec
 isions on the utilization of forest timber in post-accident environments. 
 \n\nKeywords: Japanese cedar\, Radiocesium\, Forest ecosystems\, Fukushima
 .\n\nhttps://indico.tlabs.ac.za/event/139/contributions/3837/
LOCATION:NRF-iThemba LABS\, Old Faure Road\, Cape Town Auditorium
URL:https://indico.tlabs.ac.za/event/139/contributions/3837/
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