{"created":"2021-03-01T06:43:10.098500+00:00","id":25226,"links":{},"metadata":{"_buckets":{"deposit":"bdf4b997-e75e-4fea-8e97-e2efb740da4f"},"_deposit":{"id":"25226","owners":[],"pid":{"revision_id":0,"type":"depid","value":"25226"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00025226","sets":["27:2466:2467:2479","9:504:2469:2480"]},"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Regeneration of Betula maximowicziana more than 20 years after soil scarification at low-elevation zones in the University of Tokyo Hokkaido Forest"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2014-06-25","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"55","bibliographicPageStart":"41","bibliographicVolumeNumber":"131","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":"We investigated the regeneration of Betula maximowicziana in scarified sites established more than 20 years ago in low-elevation zones in central Hokkaido, Japan. Three transects were established at each site and 3-m radius circular plots were located on each transect at 10-m intervals. We measured the diameter at breast height (DBH) of forest trees >1.3 m tall, and subsequently established two 10-m2 quadrats at each site in which we measured DBH and height of all trees. The relationship between DBH and height of B. maximowicziana was determined using an exponential equation. The height of B. maximowicziana trees that had regenerated within the circular plots was estimated based on the relationship between DBH and tree height. Finally, we calculated D2H [DBH2 × height] for each plot. The circular plots contained 36 tree species and the tree density at each site ranged from 1,957 to 4,480 trees/ha. Generalized linear mixed models showed that Betula platyphylla had a negative effect on regeneration of Betula maximowicziana,whereas Abies sachalinensis had a positive effect. Betula maximowicziana was superior in number, DBH, and height to other tree species; thus, we suggest that B. maximowicziana would be the dominant tree species on scarified sites and would occupy the majority of the canopy. Scarification in low-elevation zones may be an effective method for promoting regeneration of B. maximowicziana.","subitem_description_type":"Abstract"}]},"item_4_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"論文","subitem_description_type":"Other"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"53367","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Takigawa, Hiroyuki"}]},{"nameIdentifiers":[{"nameIdentifier":"53368","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Matsui, Masaki"}]},{"nameIdentifiers":[{"nameIdentifier":"53369","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Nakagawa, Yuji"}]},{"nameIdentifiers":[{"nameIdentifier":"53370","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Goto, Susumu"}]}]},"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_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"The University of Tokyo Forests"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学大学院農学生命科学研究科附属演習林教育研究センター"},{"subitem_text_value":"東京大学大学院農学生命科学研究科附属演習林生態水文学研究所"},{"subitem_text_value":"東京大学大学院農学生命科学研究科附属演習林北海道演習林"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"滝川, 寛之"}],"nameIdentifiers":[{"nameIdentifier":"53363","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松井, 理生"}],"nameIdentifiers":[{"nameIdentifier":"53364","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中川, 雄治"}],"nameIdentifiers":[{"nameIdentifier":"53365","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"後藤, 晋"}],"nameIdentifiers":[{"nameIdentifier":"53366","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":"esrh131003.pdf","filesize":[{"value":"2.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"esrh131003.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/25226/files/esrh131003.pdf"},"version_id":"8b4d7944-9e46-4e24-a933-386b943e1cf3"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Betula maximowicziana","subitem_subject_scheme":"Other"},{"subitem_subject":"regeneration","subitem_subject_scheme":"Other"},{"subitem_subject":"scarification","subitem_subject_scheme":"Other"},{"subitem_subject":"D2H","subitem_subject_scheme":"Other"},{"subitem_subject":"generalized linear mixed model","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":"東京大学北海道演習林において20年以上が経過した低標高域の地がき地におけるウダイカンバの更新状況","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"東京大学北海道演習林において20年以上が経過した低標高域の地がき地におけるウダイカンバの更新状況"}]},"item_type_id":"4","owner":"1","path":["2480","2479"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-06-30"},"publish_date":"2014-06-30","publish_status":"0","recid":"25226","relation_version_is_last":true,"title":["東京大学北海道演習林において20年以上が経過した低標高域の地がき地におけるウダイカンバの更新状況"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T04:00:18.276852+00:00"}