Research is fully in progress for radionuclide transport in the forest

  • Since April 2014, observation devices have been installed to a forest situated in Yamakiya district, Kawamata Town, Date City in order to analyze mechanism of radionuclide transport. As of June 2014, setting was completed and the observation process has been started.

    Observation Site


    Source : Ministry of Economy, Trade and Industry

  • State in the Forest

    Observation forest were set by constituting 3 devices as one unit and separately installed into 3 different areas for the total of 9 devices. Power is supplied through solar power generation system installed near the observation trees. 100 trees which are easily identified by colored tapes are used for the radiation level measurement.
  • A part of the Observation contents

    This forest is consisted by evergreen needle-leaved trees which are presumable to catch the fallouts caused by Fukushima Accident. With rains and fallen leaves, such fallouts gradually fall onto the land surface. The research is aimed to analyze such fallouts behavior on the land surface. Presently it is presumed that majority of fallouts are stayed on land surface, however some fallouts were observed to be caught by trees and re-joined to the cycle or others were flew into lower land, etc. By taking accurate measurement on such fallouts behaviors in the forest and modeling them, it enables to apply to future observations and also to any forests where a researcher does not actually go to the site.