{"created":"2023-05-15T15:18:02.642509+00:00","id":4324,"links":{},"metadata":{"_buckets":{"deposit":"04c7ba3e-9d7d-4435-9cdf-1d142bb13253"},"_deposit":{"created_by":12,"id":"4324","owners":[12],"pid":{"revision_id":0,"type":"depid","value":"4324"},"status":"published"},"_oai":{"id":"oai:obihiro.repo.nii.ac.jp:00004324","sets":["74:75:320"]},"author_link":["223","108"],"control_number":"4324","item_5_alternative_title_1":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Age and growth of three Quercus dentata canopy trees blown down by wind in 2016 in the Obihiro High School Reserved Forest"}]},"item_5_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"46","bibliographicPageStart":"40","bibliographicVolumeNumber":"39","bibliographic_titles":[{"bibliographic_title":"帯広畜産大学学術研究報告"},{"bibliographic_title":"Research bulletin of Obihiro University","bibliographic_titleLang":"en"}]}]},"item_5_description_19":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_5_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"2016年に帯広農業高校保護林内で、近接して生育するカシワ林冠木3 本が強風で倒れた。この風倒木の幹から円盤を採集することで、樹齢と半径方向の生長、さらに高さ8 m までの樹高生長を調べた。高さ0.3 m 位置で円盤を採集することができたのは、このうち2 本であり、年輪数はいずれも171 本で一致した．一方、残る1 本の倒木でえた高さ1.5 m 位置での円盤の年輪数は、これら2 本の倒木より4 本少なかった。高さ0.3 m 位置で円盤を採集することができた倒木が示した樹高生長は、高さ0.3 m から 4 m まで40 cm/ 年をこえていて、残る1 本の倒木が示した樹高生長は、高さ1.5 m から4 m まで26 cm/ 年あった。さらに、いずれの個体も、高さ4 m から8m までの樹高生長は20 cm/ 年を越えていた。この樹高成長速度を考慮すると、3 本の倒木はほぼ同時に旺盛な樹高生長を開始したといえる。また、樹高成長速度の大きさから、樹高成長を開始した当時、これら3 本は明るい光環境下にあったものと考えられる。3 本がほぼ同時に旺盛な樹高生長を開始したことから、これらの倒木が生育していた近傍に、もしこの場所に森林が成立していたのなら若木の生育を促す森林への攪乱が、森林が成立していなかったのなら森林への遷移を阻止する行為の最後にあたるものが、171 年前より少し前にあったものと推測される。0.3 ｍ位置の年輪には、42 年目と57 年目に、2 本の倒木とも大きな傷害を受けた跡があった。このことから、林内には複数の幹に大きな傷害をあたえる出来事が、樹高生長を開始した後におきた事がわかる。","subitem_description_type":"Abstract"},{"subitem_description":"Three canopy trees of Quercus dentata were blown down by the strong wind of a typhoon in 2016 in the Obihiro Agricultural High School Reserved Forest. The stem disks sampled at several heights from these trees were examined for their age and radial and height growth. The number of tree rings was 171 at 0.3 m height of two trees from which disks were able to be sampled at this height. The number was fewer by 4 for the remaining tree at the height of 1.5 m. The initial height growth of the two trees from 0.3 m to 4 m in height was as large as 40 cm/year and that of the other tree from 0.3 m to 4 m in height was 26 cm/year. These results indicate that the trees simultaneously started their upper growth, and that some natural event that allowed these trees to grow rigorously had occurred just before 171 years ago. Both disks at 0.3m height had large scars at the 42th and 57th rings from the center of each disk.","subitem_description_type":"Abstract"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"帯広畜産大学"}]},"item_5_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"帯広畜産大学"}]},"item_5_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13485261","subitem_source_identifier_type":"ISSN"}]},"item_5_subject_21":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"653","subitem_subject_scheme":"NDC"}]},"item_5_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Konno, Yasuo","creatorNameLang":"en"},{"creatorName":"紺野, 康夫","creatorNameLang":"ja"}],"familyNames":[{},{}],"givenNames":[{},{}],"nameIdentifiers":[{},{},{},{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Sato, Masatoshi","creatorNameLang":"en"},{"creatorName":"佐藤, 雅俊","creatorNameLang":"ja"}],"familyNames":[{},{}],"givenNames":[{},{}],"nameIdentifiers":[{},{},{},{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-03-06"}],"displaytype":"detail","filename":"05 39 konno.pdf","filesize":[{"value":"468.9 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"full text","url":"https://obihiro.repo.nii.ac.jp/record/4324/files/05 39 konno.pdf"},"version_id":"d876141b-b256-4ead-8ff9-7dba25822f42"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"樹齢","subitem_subject_scheme":"Other"},{"subitem_subject":"直径生長","subitem_subject_scheme":"Other"},{"subitem_subject":"樹高生長","subitem_subject_scheme":"Other"},{"subitem_subject":"林歴","subitem_subject_scheme":"Other"},{"subitem_subject":"開拓","subitem_subject_scheme":"Other"},{"subitem_subject":"tree age","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"radial growth","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"height growth","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"forest history","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"reclamation","subitem_subject_language":"en","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":"帯広農業高校保護林において2016 年に発生した3本のカシワ風倒木の齢と生長履歴","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"帯広農業高校保護林において2016 年に発生した3本のカシワ風倒木の齢と生長履歴","subitem_title_language":"ja"}]},"item_type_id":"5","owner":"12","path":["320"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2019-03-06"},"publish_date":"2019-03-06","publish_status":"0","recid":"4324","relation_version_is_last":true,"title":["帯広農業高校保護林において2016 年に発生した3本のカシワ風倒木の齢と生長履歴"],"weko_creator_id":"12","weko_shared_id":-1},"updated":"2024-02-29T04:48:49.297740+00:00"}