{"created":"2021-03-01T06:43:31.583402+00:00","id":25556,"links":{},"metadata":{"_buckets":{"deposit":"fa9cb386-ef95-4ceb-816a-261276151ee1"},"_deposit":{"id":"25556","owners":[],"pid":{"revision_id":0,"type":"depid","value":"25556"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00025556","sets":["27:2466:2467:2585","9:504:2469:2586"]},"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"A Case Study on Development for Individual Trees in Plantations of Cryptomeria japonica and Chamaecyparis obtusa"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1988","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"29","bibliographicPageStart":"9","bibliographicVolumeNumber":"78","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":"林分を構成する個個の立木について，それらの長期にわたっての時間的経過を，いくつかの事例について調べた。用いたデータは，千葉演習林における森林試験測定地の記録を整理した「林分成長資料」である。本文においては，同資料に紹介されている8個の試験地から6個を選び，それらのデータを林分a～fとして用いた。各林分に対して，数年おきに11～13回の調査が行われ，各時点における胸高直径（地上1.2m）が測定されたが，その大きさを目安として，各時点における個個の立木の順位を比較することができる。その結果は，若い年代において比較的上位であった立木が，最終の調査時点まで残存する可能性が高いことを示している。また最終調査時点における残存木の胸高直径は，相当広範囲に分布しているが，それを初期の調査時点における分布と比較すると，それぞれの上限値の差は非常に大きいが，他方下限値の差はきわめて小さく，10cm程度である。最初の調査時点に存在した立木について，それら1本1本の推移を図上に示したがこのような図から，林分の全体的な経過を容易に知ることができる。最終調査時点まで残存した立木について，最終と他の調査時点との間の胸高直径の相関係数を求めると次表のようである。","subitem_description_type":"Abstract"},{"subitem_description":"Development over a long time of individual trees, composing a stand, was examined in this paper. Data were collected in five plantations of Cryptomeria japonica and a plantation of Chamaecyparis obtusa. Inventory was practiced from eleven to thirteen times for each stand with the interval of several years, and diameters at breast height (1.20 m above ground) were measured at every time. The order of those individual trees can be compared by using their DBH. The results show that comparatively high-ranking trees in young ages have much possibility of living till final stage. DBH of living trees at final stage is distributed widely. In comparison with the range in young stage, the difference between the values of supremum is very large, however the difference between the values of infimum is very small. The values of coefficient of correlation between the final stage and each of former stages are shown as follows:","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"55387","nameIdentifierScheme":"WEKO"}],"names":[{"name":"MAEZAWA, Kanjiro"}]},{"nameIdentifiers":[{"nameIdentifier":"55388","nameIdentifierScheme":"WEKO"}],"names":[{"name":"HAGA, Toshiro"}]}]},"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":"東京大学農学部演習林本部"},{"subitem_text_value":"東京理科大学工学部"},{"subitem_text_value":"Administration Office of the University Forests, Faculty of Agriculture, University of Tokyo"},{"subitem_text_value":"Faculty of Engineering, Science University of Tokyo"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"前沢, 完次郎"}],"nameIdentifiers":[{"nameIdentifier":"55385","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"芳賀, 敏郎"}],"nameIdentifiers":[{"nameIdentifier":"55386","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":"esrh078002.pdf","filesize":[{"value":"1.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"esrh078002.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/25556/files/esrh078002.pdf"},"version_id":"338ee526-e9e2-447e-9ee2-05e631f1e658"}]},"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":"スギ，ヒノキ人工林における個個の立木の時間的経過事例","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"スギ，ヒノキ人工林における個個の立木の時間的経過事例"}]},"item_type_id":"4","owner":"1","path":["2586","2585"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-09-03"},"publish_date":"2014-09-03","publish_status":"0","recid":"25556","relation_version_is_last":true,"title":["スギ，ヒノキ人工林における個個の立木の時間的経過事例"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T04:59:46.764689+00:00"}