{"created":"2024-04-05T04:29:47.136496+00:00","id":2000287,"links":{},"metadata":{"_buckets":{"deposit":"a5cf2ac4-6250-4619-b7f1-aacc1a0d1dbf"},"_deposit":{"created_by":11,"id":"2000287","owners":[11],"pid":{"revision_id":0,"type":"depid","value":"2000287"},"status":"published"},"_oai":{"id":"oai:uuair.repo.nii.ac.jp:02000287","sets":["716:726:542:1712214591028"]},"author_link":[],"item_5_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2024-03-30","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"60","bibliographicPageEnd":"6","bibliographicPageStart":"1","bibliographic_titles":[{"bibliographic_title":"宇都宮大学農学部演習林報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of the Utsunomiya University Forests","bibliographic_titleLang":"en"}]}]},"item_5_description_19":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"text","subitem_description_type":"Other"}]},"item_5_description_24":{"attribute_name":"WEKOアイテムタイプ","attribute_value_mlt":[{"subitem_description":"紀要論文 / Departmental Bulletin Paper","subitem_description_type":"Other"}]},"item_5_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The stress-wave velocity of trees, dynamic Youngʼs modulus of logs, and bending properties of lumber were examined in Abies firma trees, which might be regarded as valuable species for producing lumber for wooden frame construction systems. Naturallygrown A. firma trees in a Pinus plantation were used in the present study. The mean values of the stress-wave velocity of stems was 3.05 km/s. Dynamic Youngʼs modulus of logs ranged from 5.79 to 10.09 GPa. The logs collected from 1.2 to 3.2 m above ground showed higher dynamic Youngʼs modulus value than those collected from 3.2 to 7.2 m above ground. Mean values of modulus of elasticity and modulus of rupture (MOR) in static bending of lumber were 7.16 GPa and 47.7 MPa, respectively. In addition, preliminary estimated 5% lower tolerance limits with a 75% confidence level of the MOR was 35.1 MPa, suggesting that the lumber for wooden frame construction system can be produced from this species. A high correlation coefficient was not found between stem diameter and stress-wave velocity of the tree. Significant differences among trees were found in dynamic Youngʼs modulus. Based on the results, lumber with high Youngʼs modulus for wooden frame-construction systems can be obtained by conducting tree breeding for wood quality in this species.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"本研究では，枠組壁工法用部材生産のために，天然に生育したモミ（Abies firma）の立木の応力波伝播速度，丸太の動的ヤング率および板材の曲げ物性を調査した．立木の応力波伝播速度の平均値は，3.05 km/s であった．また，丸太の動的ヤング率は，5.79 ～ 10.09 GPa の範囲を示した．また，地上高1.2 ～ 3.2 m において得られた丸太の動的ヤング率は，地上高3.2 ～ 7.2 m 以上で得られた丸太と比較して高い値を示した．板材の平均曲げヤング率および曲げ強さは，7.16 GPa および47.7 MPa であった．また，予備的に求めたMOR の信頼水準75% の95% 下限許容限界値は35.1MPa であり，十分な強度性能を持つ板材が生産できる可能性が示唆された．立木の応力波伝播速度と幹直径の間には，高い相関関係は認められなかったが，丸太の動的ヤング率には個体間で有意な差が認められた．このことから，モミにおいては，材質育種によって，ヤング率の高い枠組工法用部材の生産が可能であることが示唆された．","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_5_heading_23":{"attribute_name":"見出し","attribute_value_mlt":[{"subitem_heading_headline":"論文","subitem_heading_language":"ja"},{"subitem_heading_headline":"Article","subitem_heading_language":"en"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇都宮大学農学部附属演習林","subitem_publisher_language":"ja"}]},"item_5_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0286-8733","subitem_source_identifier_type":"PISSN"}]},"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_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"石栗, 太","creatorNameLang":"ja"},{"creatorName":"イシグリ, フトシ","creatorNameLang":"ja-Kana"},{"creatorName":"ISHIGURI, Futoshi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"根津, 郁実","creatorNameLang":"ja"},{"creatorName":"ネヅ, イクミ","creatorNameLang":"ja-Kana"},{"creatorName":"NEZU, Ikumi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"大島, 潤一","creatorNameLang":"ja"},{"creatorName":"オオシマ, ジュンイチ","creatorNameLang":"ja-Kana"},{"creatorName":"OHSHIMA, Jyunichi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"飯塚, 和也","creatorNameLang":"ja"},{"creatorName":"イイヅカ, カズヤ","creatorNameLang":"ja-Kana"},{"creatorName":"IIZUKA, Kazuya","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"横田, 信三","creatorNameLang":"ja"},{"creatorName":"ヨコタ, シンソウ","creatorNameLang":"ja-Kana"},{"creatorName":"YOKOTA, Shinso","creatorNameLang":"en"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2024-04-09"}],"displaytype":"detail","filename":"60_01_01-06.pdf","format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"本文","url":"https://uuair.repo.nii.ac.jp/record/2000287/files/60_01_01-06.pdf"},"version_id":"1ea279c2-c634-470e-9da4-be7a9254f95d"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Abies firma","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"wooden frame-construction system","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"dynamic Youngʼs modulus","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"tree breeding","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"モミ","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"枠組壁工法","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"動的ヤング率","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"林木育種","subitem_subject_language":"ja","subitem_subject_scheme":"Other"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Possibilities of tree breeding for wood quality of Abies firma to produce wooden frame-construction lumber","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Possibilities of tree breeding for wood quality of Abies firma to produce wooden frame-construction lumber","subitem_title_language":"en"},{"subitem_title":"モミ（Abies firma）における材質育種および枠組壁工法用部材生産の可能性","subitem_title_language":"ja"}]},"item_type_id":"5","owner":"11","path":["1712214591028"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-04-09"},"publish_date":"2024-04-09","publish_status":"0","recid":"2000287","relation_version_is_last":true,"title":["Possibilities of tree breeding for wood quality of Abies firma to produce wooden frame-construction lumber"],"weko_creator_id":"11","weko_shared_id":-1},"updated":"2024-04-09T01:22:29.171552+00:00"}