{"created":"2023-05-15T14:39:21.659334+00:00","id":54063,"links":{},"metadata":{"_buckets":{"deposit":"58634d1a-4162-45b7-91ec-e7e98d6256e7"},"_deposit":{"created_by":1,"id":"54063","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"54063"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00054063","sets":["2"]},"author_link":["551880","551881","551883","551882"],"item_10003_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2008-09","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"340","bibliographicPageStart":"337","bibliographic_titles":[{"bibliographic_title":"From Headwaters to the Ocean : Hydrological Changes and Watershed Management"}]}]},"item_10003_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Due to the application of phosphatic fertilizers to agricultural fields, river concentrations of uranium (U) may increase since any excess amounts of their irrigation water are returned to rivers. The U and thorium (Th) concentration ratio is of interest to check for possible U addition from agricultural fields. Thus water samples at the upper stream, the middle part (usually surrounded by agricultural fields), and the lower stream from each of 44 major Japanese rivers were collected and their U and Th concentrations were measured by inductively coupled plasma mass spectrometry. The geometric means of U/Th ratios in the upper stream, the middle part, and the lower stream were 1.38, 2.01 and 2.18 respectively. The results suggested possible U addition from the agricultural fields.","subitem_description_type":"Abstract"}]},"item_10003_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"CRC Press"}]},"item_10003_relation_10":{"attribute_name":"ISBN","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"978-0-4154-7279","subitem_relation_type_select":"ISBN"}}]},"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":"551880","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Uchida, Shigeo"}],"nameIdentifiers":[{"nameIdentifier":"551881","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"田上 恵子","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"551882","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"内田 滋夫","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"551883","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 paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"Thorium and uranium concentrations in 44 Japanese river waters -Possible uranium addition from agricultural fields to river waters-","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Thorium and uranium concentrations in 44 Japanese river waters -Possible uranium addition from agricultural fields to river waters-"}]},"item_type_id":"10003","owner":"1","path":["2"],"pubdate":{"attribute_name":"公開日","attribute_value":"2008-10-23"},"publish_date":"2008-10-23","publish_status":"0","recid":"54063","relation_version_is_last":true,"title":["Thorium and uranium concentrations in 44 Japanese river waters -Possible uranium addition from agricultural fields to river waters-"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:05:18.979758+00:00"}