閉鎖型生態系実験施設を用いた物質循環閉鎖居住実験

抄録

     In Rokkasho-village, Aomori-prefecture, Japan, where a spent nuclear fuel reprocessing plant situated as a core part of nuclear fuel cycle has been developed, Institute for Environmental Sciences (IES), mainly conducting researches on impact of the plant on the environment and the public, has been established since 1990. IES developed unique experimental facilities named “Closed Ecology Experiment Facilities (CEEF)” from 1994 to 1999. This article outlined the CEEF and habitation experiments conducted using the facilities from 2005 to 2007, and problems that occurred during the course of the experiments. CEEF was renamed “Ecology Experiment Facilities (EEF)” in 2016. At present, a part of the EEF, “Plant Experiment Facility (PEF)” is used for obtaining experimental data necessary to modelling transfer of a radiocarbon, ¹⁴C discharged from the reprocessing plant to crops. The PEF is used for exposure of experimental plants to ¹³CO₂ in place of ¹⁴CO₂ and growing the plants under controlled environment.