{"created":"2021-03-01T06:43:23.598313+00:00","id":25434,"links":{},"metadata":{"_buckets":{"deposit":"7e088cdb-90d6-4ee5-9cf7-4b41cda56fc7"},"_deposit":{"id":"25434","owners":[],"pid":{"revision_id":0,"type":"depid","value":"25434"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00025434","sets":["27:2466:2467:2553","9:504:2469:2554"]},"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Estimation of Mast Year of Japanese Beech (Fagus japonica MAXIM.) by the Observation of Peduncle Scar"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1995","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"8","bibliographicPageStart":"1","bibliographicVolumeNumber":"94","bibliographic_titles":[{"bibliographic_title":"東京大学農学部演習林報告"}]}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"秩父山地のイヌブナ優占林分におけるイヌブナの豊作年を推定する目的で，1990年12月に同林分のイヌブナ17株22本の幹から採取した枝について，成長年次毎の果柄痕の有無を観察した。果柄痕は葉痕と相接して存在するので，葉痕を目安に果柄痕の有無を観察した。葉痕の確認できた枝数は年を遡るにつれて減少し，最近10年間では観察枝数の約68％の枝で追跡可能であった。各年次で葉痕の認められた枝数に対する果柄痕の確認できた枝数の割合（％）が高い年は，1982年，1984年および1988年であった。この結果を同じ林分で1984～1990年にシードトラップを用いて推定されたイヌブナの堅果落下量とを比較したところ，果柄痕の出現頻度の高い1984年と1988年のいずれもイヌブナの堅果豊作年と一致した。したがって，1982年も豊作年であったと推定された。以上の結果から，この方法は過去10年間についてはイヌブナの豊作年を推定する方法として有効であると考えられた。","subitem_description_type":"Abstract"},{"subitem_description":"In order to investigate the mast years of the stand dominated by Japanese beech (Fagus japonica MAXIM.) in the Chichibu Mountains, Central Japan, peduncle scars on the branches collected from 22 stems of Japanese beech were observed by a magnifying glass (×3.5). The peduncle scar is adjacent to the leaf scar, so the observation was made after ascertaining the presence of a leaf scar. The leaf scar is obscured with the age. However, it could be traced back to ten years in 68% of the total number of branches observed. The years showing a high appearance frequency of peduncle scars were 1982, 1984 and 1988. The latter two years coincided with the mast years of Japanese beech in the same stand estimated by using seed traps for seven years (1984-1990). Therefore, 1982 was also considered to be a mast year. As a consequence, this method is considered to be useful in the estimation of mast years of stands dominated by Japanese beech over a period of ten years.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"54705","nameIdentifierScheme":"WEKO"}],"names":[{"name":"KAJI, Mikio"}]},{"nameIdentifiers":[{"nameIdentifier":"54706","nameIdentifierScheme":"WEKO"}],"names":[{"name":"SAWADA, Haruo"}]}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学大学院農学生命科学研究科附属演習林"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00162451","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03716007","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"610","subitem_subject_scheme":"NDC"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"The Tokyo University Forests"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学農学部附属秩父演習林"},{"subitem_text_value":"東京大学農学部附属北海道演習林"},{"subitem_text_value":"University Forest at Chichibu, Faculty of Agriculture, The University of Tokyo"},{"subitem_text_value":"University Forest in Hokkaido, Faculty of Agriculture, The University of Tokyo"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"梶, 幹男"}],"nameIdentifiers":[{"nameIdentifier":"54703","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"澤田, 晴雄"}],"nameIdentifiers":[{"nameIdentifier":"54704","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-09"}],"displaytype":"detail","filename":"esrh094001.pdf","filesize":[{"value":"636.2 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"esrh094001.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/25434/files/esrh094001.pdf"},"version_id":"925050fc-2410-4473-b719-14f3a67cc5c6"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"秩父","subitem_subject_scheme":"Other"},{"subitem_subject":"イヌブナ","subitem_subject_scheme":"Other"},{"subitem_subject":"豊作年","subitem_subject_scheme":"Other"},{"subitem_subject":"果柄痕","subitem_subject_scheme":"Other"},{"subitem_subject":"堅果落下量","subitem_subject_scheme":"Other"},{"subitem_subject":"Chichibu","subitem_subject_scheme":"Other"},{"subitem_subject":"Japanese beech","subitem_subject_scheme":"Other"},{"subitem_subject":"Mast year","subitem_subject_scheme":"Other"},{"subitem_subject":"Peduncle scar","subitem_subject_scheme":"Other"},{"subitem_subject":"Amount of fallen nuts","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"果柄痕の観察によるイヌブナ堅果豊作年の推定","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"果柄痕の観察によるイヌブナ堅果豊作年の推定"}]},"item_type_id":"4","owner":"1","path":["2554","2553"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-09-03"},"publish_date":"2014-09-03","publish_status":"0","recid":"25434","relation_version_is_last":true,"title":["果柄痕の観察によるイヌブナ堅果豊作年の推定"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T04:03:41.644502+00:00"}