{"created":"2021-03-01T06:43:24.631059+00:00","id":25450,"links":{},"metadata":{"_buckets":{"deposit":"1dc13047-2c1e-4c6f-9dc8-1e7eafb4014c"},"_deposit":{"id":"25450","owners":[],"pid":{"revision_id":0,"type":"depid","value":"25450"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00025450","sets":["27:2466:2467:2557","9:504:2469:2558"]},"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"東京大学千葉演習林に生育したスギ5品種の成長と材質特性"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1994","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"28","bibliographicPageStart":"9","bibliographicVolumeNumber":"92","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":"The growth and wood properties of 5 sugi cultivars grown in the same stand and managed in the same way were examined. The sample cultivars were Hidarimaki-sugi, Tosaaka-sugi, Haara-sugi, Boka-sugi and Ji-sugi, and they were 31 years old and had been planted in the Tokyo University Forest in Chiba. The discs were taken from sample trees at fixed heights for stem analysis, and the specimens for green moisture content, basic density, compression test parallel to the grain and bending test were taken from the log at about 1.3 m above ground level. The specimens for compression test parallel to the grain and bending test were taken from both juvenile wood and mature wood. The test was done in a room of 65% relative humidity and 20℃. The results are summarised as follows; 1) Total volume growth was the greatest in Tosaaka-sugi, followed by Ji-sugi, Haara-sugi and the least in Hidarimaki-sugi. 2) The radial distribution of green moisture content was classified into four types. 3) The basic density was somewhat higher near the pith than in sapwood. 4) A good linear correlation was found between the specific gravity in air dry and compressive strength of both juvenile wood and mature wood for all cultivars, but a good correlation was not found betwenn Young's modulus in compression paralell to the grain, Young's modulus in bending, bending strength and specific gravity in air dry, either of juvenile wood or mature wood of cultivars. 5) A highly significant correlation was confirmed between Young's modulus and strength. 6) The strength properties in Boka-sugi showed lower values than those of the other 4 sugi cultivars and it was remarkable in Young's modulus. This was due to qualitative difference in the cell wall of tracheids. 7) Both the growth and the strength properties in Boka-sugi were not good. 8) For Hidarimaki-sugi the strength properties were good, but growth was not good. 9) Both the growth and the strength properties were good for Tosaaka-sugi, Ji-sugi and Haara-sugi.","subitem_description_type":"Abstract"},{"subitem_description":"スギの品種による材の基本的な性質の違いを調べるために，同じ環境で，同じ施業を受けたスギ5品種についてその成長と材質について検討した。試料は東京大学農学部付属千葉演習林の品種試験地に植栽されていた31年生のスギ5品種（ヒダリマキスギ，トサアカスギ，ハアラスギ，ボカスギ，ジスギ）である。心材の色は5品種とも赤色であった。各供試木から樹高別に樹幹解析用の円盤を採取した。また，胸高部位より生材含水率（容積密度），曲げ試験片及び縦圧縮試験片を採取した。曲げ試験片及び縦圧縮試験片は未成熟材部と成熟材部に分けて採取し，気乾状態で試験を行なった。得られた結果は次の通りである。1）材積成長量はトサアカスギが最大で，次にジスギ，ハアラスギ，ボカスギ，ヒダリマキスギの順であった。2）生材含水率の半径方向分布は大きく4つのタイプに分けられた。3）容積密度はいずれの品種においても，樹心部分が辺材部分よりも若干高い傾向を示した。4）縦圧縮強さと気乾密度との間には各品種とも成熟材，未成熟材で良い相関が見られたが，繊維方向のヤング率，曲げヤング率及び曲げ強さと気乾密度との間には各品種について，成熟材，未成熟材に分けても必ずしも良い相関は見られなかった。5）ヤング率と強さとの間には良い相関が見られた。6）ボカスギの強度，ヤング率は他の4品種のそれより小さい値を示した。特にヤング率の場合に顕著であった。これは，ボカスギの細胞壁の質的要因が関与しているものと思われた。7）ボカスギは強度的性質も成長も良くなかった。8）ヒダリマキスギは強度的性質は良好であったが，成長が良くなかった。9）トサアカスギ，ジスギ，ハアラスギは成長も強度的性質も優れていた。","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"54789","nameIdentifierScheme":"WEKO"}],"names":[{"name":"三城, 昭義"}]},{"nameIdentifiers":[{"nameIdentifier":"54790","nameIdentifierScheme":"WEKO"}],"names":[{"name":"金, 炳魯"}]},{"nameIdentifiers":[{"nameIdentifier":"54791","nameIdentifierScheme":"WEKO"}],"names":[{"name":"野崎, 隆俊"}]},{"nameIdentifiers":[{"nameIdentifier":"54792","nameIdentifierScheme":"WEKO"}],"names":[{"name":"岡野, 健"}]}]},"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":"Department of Applied Biological Chemistry. Faculty of Agriculture, Niigata University"},{"subitem_text_value":"Department of Wood Science and Technology, College of Agriculture, Chungbunk National University, Korea"},{"subitem_text_value":"Department of Forest Products, Faculty of Agriculture, The University of Tokyo"},{"subitem_text_value":"新潟大学農学部応用生物化学科"},{"subitem_text_value":"忠北大学校農科大学林産工学科"},{"subitem_text_value":"東京大学農学部林産学科"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"MISHIRO, Akiyoshi"}],"nameIdentifiers":[{"nameIdentifier":"54785","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"KIM, Boung Ro"}],"nameIdentifiers":[{"nameIdentifier":"54786","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"NOZAKI, Takatoshi"}],"nameIdentifiers":[{"nameIdentifier":"54787","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"OKANO, Takeshi"}],"nameIdentifiers":[{"nameIdentifier":"54788","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":"esrh092002.pdf","filesize":[{"value":"1.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"esrh092002.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/25450/files/esrh092002.pdf"},"version_id":"07b82e4c-7296-4b7b-a627-8b221e00359b"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Sugi","subitem_subject_scheme":"Other"},{"subitem_subject":"Cultivar","subitem_subject_scheme":"Other"},{"subitem_subject":"Strength properties","subitem_subject_scheme":"Other"},{"subitem_subject":"Juvenile wood","subitem_subject_scheme":"Other"},{"subitem_subject":"Mature wood","subitem_subject_scheme":"Other"},{"subitem_subject":"スギ","subitem_subject_scheme":"Other"},{"subitem_subject":"品種","subitem_subject_scheme":"Other"},{"subitem_subject":"強度的性質","subitem_subject_scheme":"Other"},{"subitem_subject":"未成熟材","subitem_subject_scheme":"Other"},{"subitem_subject":"成熟材","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":"Growth and Wood Properties of Five Sugi (Cryptomeria japonica D. Don) Cultivars Grown in the Tokyo University Forest in Chiba","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Growth and Wood Properties of Five Sugi (Cryptomeria japonica D. Don) Cultivars Grown in the Tokyo University Forest in Chiba"}]},"item_type_id":"4","owner":"1","path":["2558","2557"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-09-03"},"publish_date":"2014-09-03","publish_status":"0","recid":"25450","relation_version_is_last":true,"title":["Growth and Wood Properties of Five Sugi (Cryptomeria japonica D. Don) Cultivars Grown in the Tokyo University Forest in Chiba"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T04:03:41.173648+00:00"}