{"created":"2023-12-27T06:58:45.443725+00:00","id":2008743,"links":{},"metadata":{"_buckets":{"deposit":"b99f5950-eb13-4e46-9e8e-b416c7a00966"},"_deposit":{"created_by":17,"id":"2008743","owners":[17],"pid":{"revision_id":0,"type":"depid","value":"2008743"},"status":"published"},"_oai":{"id":"oai:nagoya.repo.nii.ac.jp:02008743","sets":["879:1183:2103:1703659440327"]},"author_link":[],"control_number":"2008743","item_1615768549627":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_9_alternative_title_19":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Changes and characteristics of paleo-vegetation in the Ishikari district of Hokkaido since 100,000 years ago","subitem_alternative_title_language":"en"}]},"item_9_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2023-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"31","bibliographicPageStart":"15","bibliographicVolumeNumber":"7","bibliographic_titles":[{"bibliographic_title":"名古屋大学年代測定研究","bibliographic_titleLang":"ja"},{"bibliographic_title":"The Nagoya University bulletin of chronological research","bibliographic_titleLang":"en"}]}]},"item_9_description_4":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"On the basis of the composition of spores and pollen, columnar section, modern forest vegetation, and the results of soil survey at seven survey sites in the Ishikari district of Hokkaido, the authors examined and discussed the flow from paleo-vegetation to modern forest vegetation, factors of the formation of forest vegetation, and the continuity of forest vegetation. In Nakayamatoge Pass, located more than 600 m above sea level in the western part of Ishikari district, Hokkaido, warm-temperate tree species including Fagus japonica, Fagus crenata, Cryptomeria japonica, Tsuga and Metasequoia glyptostroboides appeared in the Middle Tertiary Miocene, 13 million years ago. At the present time, evergreen conifer trees including Picea and Abies, and deciduous broadleaf trees such as Quercus, Betula, Alnus, Ulmus, Juglans mandschurica, Carpinus, and Corylus are observed. During the Middle Tertiary Miocene, in addition to warm-temperate tree species aforementioned, evergreen conifer trees and deciduous broadleaf trees as predecessor species of the present modern forest vegetation appeared. 　As for the formation and transition of paleo-vegetation and modern forest vegetation, the samples obtained at the 7 survey sites that were dated up to 888 calAD, the most recent values obtained by 14C dating in the Ishikari district, indicate that forest vegetation until around 2 million years ago was spread over tephra deposits that appeared as a result of volcanic activities and led to a diverse modern forest vegetation with wind-dispersed tree species joined by bird and beast dispersal tree species from the perspective of seed dispersal patterns.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"北海道石狩地方における著者らが行った7箇所のボーリング調査地点の花粉・胞子組成図、柱状図、現生森林植生、土性調査結果をもとに古植生から現生森林植生への流れ、森林植生の成立の要因、森林植生の連続性を考察した。石狩地方西部の海抜600m余の中山峠は1300万年前にはイヌブナ、ブナをはじめスギ、ツガ属、メタセコイアなどの暖温帯性の樹種が出現し、現在も見られるトウヒ属、モミ属の常緑針葉樹、コナラ属、カバノキ属、ハンノキ属、ニレ属、オニグルミ、クマシデ属、ハシバミ属といった落葉広葉樹の種属も出現した。第三紀中期中新世の1300万年前は上述した暖温帯性の樹種がみられたほか、同時にこれ以降現在の森林植生に繋がる常緑針葉樹、落葉広葉樹も出現した。古植生や現生森林植生の成立や推移についてみると、石狩地方における最も新しい14C年代測定値888calADまでの7箇所のボーリング調査地点の試料から、200万年前以降の森林植生は火山活動に伴い出現したテフラ堆積地に広がり、種子分散様式から風力散布樹種に鳥獣散布樹種が加わり多様な現在の現生森林植生に至ったと考えられた。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_9_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.18999/nagubc.7.15","subitem_identifier_reg_type":"JaLC"}]},"item_9_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"名古屋大学宇宙地球環境研究所年代測定研究部","subitem_publisher_language":"ja"},{"subitem_publisher":"Division for Chronological Research, Institute for Space‒Earth Environmental Research, Nagoya University","subitem_publisher_language":"en"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"星野, フサ","creatorNameLang":"ja"},{"creatorName":"Hoshino, Fusa","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"春木, 雅寛","creatorNameLang":"ja"},{"creatorName":"Haruki, Masahiro","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"南, 雅代","creatorNameLang":"ja"},{"creatorName":"Minami, Masayo","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"北川, 浩之","creatorNameLang":"ja"},{"creatorName":"Kitagawa, Hiroyuki","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"中村, 俊夫","creatorNameLang":"ja"},{"creatorName":"Nakamura, Toshio","creatorNameLang":"en"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-01-05"}],"displaytype":"detail","filename":"015-031_2022.pdf","filesize":[{"value":"4.8 MB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://nagoya.repo.nii.ac.jp/record/2008743/files/015-031_2022.pdf"},"version_id":"6d305a8d-a1e1-4888-b571-f2760ed5ca0f"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"AMS14C dating","subitem_subject_scheme":"Other"},{"subitem_subject":"pollen analysis","subitem_subject_scheme":"Other"},{"subitem_subject":"forest vegetation","subitem_subject_scheme":"Other"},{"subitem_subject":"Ishikari district","subitem_subject_scheme":"Other"},{"subitem_subject":"paleo-vegetation","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":"北海道石狩地方の10万年前以降の古植生とその推移","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"北海道石狩地方の10万年前以降の古植生とその推移","subitem_title_language":"ja"}]},"item_type_id":"40001","owner":"17","path":["1703659440327"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-01-05"},"publish_date":"2024-01-05","publish_status":"0","recid":"2008743","relation_version_is_last":true,"title":["北海道石狩地方の10万年前以降の古植生とその推移"],"weko_creator_id":"17","weko_shared_id":-1},"updated":"2024-01-09T00:54:23.615799+00:00"}