{"created":"2023-05-15T14:52:39.422615+00:00","id":71893,"links":{},"metadata":{"_buckets":{"deposit":"75aeb0a2-2d78-4ec7-896a-a590fee77dde"},"_deposit":{"created_by":1,"id":"71893","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"71893"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00071893","sets":["10:28"]},"author_link":["708040","708041","708039","708038"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2015-12-18","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Radiocesium and potassium-40 concentrations in two types of trees have been measured following the accident at Fukushima Daiichi Nuclear Power Plants (FDNPP) by collecting leaf samples several times a year from 2011 to 2014. We previously found that for herbaceous plants, K measurement could not be used as analogue of Cs although Cs is known to have a similar chemical reactivity to that o f K, because their distributions in plant tissues were different. However, it was not clear whether other higher plant species, such as trees, would similarly show different Cs and K fates or not.\nThe sampling was carried out in Chiba, 220 km south of FDNPP. Two deciduous tree species, Someiyoshino cherry (Cerasus × yedoensis (Matsum.) A.V.Vassil. ‘Somei-yoshino’) and Japanese chestnut (Castanea crenata) were used in this study. Plant samples were washed with tap water to remove dust from the surface and then they were oven-dried to a constant weight at 80˚C in an electric oven for at least 2 d. Each sample was pulverized and mixed well, and transferred to a 100-mL plastic container.\nRadioactivity concentration in each sample was measured by a Ge detector system (Seiko EG&G). The Cs-137 concentration decreased with time for both tree leaves, while K concentration was almost constant. For the Japanese chestnut tree, both Cs-137 and K increase was observed every spring and then the concentration decreased when season changed. The results implied that Cs and K behaviors were different in different tree species.\nThis work has been partially supported by the Agency for Natural Resources and Energy, the Ministry of Economy, Trade and Industry (METI), Japan.","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"PACIFICHEM 2015","subitem_description_type":"Other"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Tagami, Keiko"}],"nameIdentifiers":[{"nameIdentifier":"708038","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Uchida, Shigeo"}],"nameIdentifiers":[{"nameIdentifier":"708039","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"田上 恵子","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"708040","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"内田 滋夫","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"708041","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"Seasonal change of radiocesium and potassium concentrations in Someiyoshino cherry and Japanese chestnut trees observed after Fukushima nuclear accident","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Seasonal change of radiocesium and potassium concentrations in Someiyoshino cherry and Japanese chestnut trees observed after Fukushima nuclear accident"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-12-21"},"publish_date":"2015-12-21","publish_status":"0","recid":"71893","relation_version_is_last":true,"title":["Seasonal change of radiocesium and potassium concentrations in Someiyoshino cherry and Japanese chestnut trees observed after Fukushima nuclear accident"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T19:46:12.811870+00:00"}