{"created":"2021-03-01T06:17:56.644474+00:00","id":11073,"links":{},"metadata":{"_buckets":{"deposit":"8c61197c-67ba-4f4e-bead-971f925447f1"},"_deposit":{"id":"11073","owners":[],"pid":{"revision_id":0,"type":"depid","value":"11073"},"status":"published"},"_oai":{"id":"oai:nagoya.repo.nii.ac.jp:00011073","sets":["643:1199:1200"]},"author_link":["33561","33562"],"item_1618209983323":{"attribute_name":"助成情報","attribute_value_mlt":[{"subitem_award_numbers":{"subitem_award_number":"62560146","subitem_award_uri":"https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-62560146"},"subitem_award_titles":[{"subitem_award_title":"林木個体レベルのガス交換機能特性に関する基礎的研究","subitem_award_title_language":"ja"}],"subitem_funder_identifiers":{"subitem_funder_identifier":"https://doi.org/10.13039/501100001691","subitem_funder_identifier_type":"Crossref Funder"},"subitem_funder_names":[{"subitem_funder_name":"日本学術振興会","subitem_funder_name_language":"ja"}]}]},"item_19_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1989-03","bibliographicIssueDateType":"Issued"}}]},"item_19_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"(1)実験方法 a.実験林木 名古屋大学構内に植栽されている13年生のヒノキ人工林(立木密度15000本ha^<-1>)のうち、樹高4.9m、地上高1.0mでの幹直径6.1cm、幹材積8.2dm^3(1988年6月現在)の林木を測定木とした。 b.二酸化炭素交換速度の測定 測定木の地上部を、光合成有効波長域で約90%の光透過率を持つ、厚さ0.2mmのポリ塩化ビニルフィルム製の同化箱(〓5.0m^3)で被った。同化箱の内部を外気温度に同調させた状態で、二酸化炭素交換速度を通気法により赤外線ガス分析器(IR21、横河電機)で測定した。通気速度は、最大で117m^3h^<-1>であったが、夜間呼吸速度の測定時には、夏季60m^3h^<-1>、冬季15m^3h^<-1>とした。 c.樹幹成長量の測定 毎月一度、測定木の樹幹周囲長を50cm間隔で非破壊的に測定し、測定木の幹材積成長量を計算した。また同時に、同化箱内に蓄積しているリタ-を回収し、測定木の枯死量の推定値とした。 (2)結果 a.呼吸速度 単木地上部呼吸速度R_T〔gCO_2tree^<-1>h^<-1>〕と同化箱内温度T〔C^0〕との関係は、以下に示す指数関係で良く近似された。 R_T=Roexp(K・T) (Ro、Kは月ごとに定まる係数) 上式から計算される呼吸速度の温度係数(=exp(10・K))は、冬季に高く(2.5〜3.0)、夏季に低い(1.4〜2.5)傾向であった。 b.光合成速度 地上部純生産速度に地上部呼吸速度を加えた、総光合成速度Pg(gCO_2tree^<-1>d^<-1>)と日積算照度I(Klxhd^<-1>)との間には、以下に示す双曲線関係が認められた。 (A,Bは月ごとに定まる係数)","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_19_description_5":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"科学研究費補助金 研究種目:一般研究(C) 課題番号:62560146 研究代表者:萩原 秋男 研究期間:1987-1988年度","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_19_identifier_60":{"attribute_name":"URI","attribute_value_mlt":[{"subitem_identifier_type":"HDL","subitem_identifier_uri":"http://hdl.handle.net/2237/12934"}]},"item_19_relation_40":{"attribute_name":"シリーズ","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"科学研究費補助金;一般研究(C);62560146"}]}]},"item_19_select_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_19_text_14":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_text_value":"application/pdf"}]},"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":"萩原, 秋男","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"33561","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"穂積, 和夫","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"33562","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":"2018-02-20"}],"displaytype":"detail","filename":"62560146.pdf","filesize":[{"value":"5.0 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gas-exchange","subitem_subject_scheme":"Other"},{"subitem_subject":"Photosynthesis","subitem_subject_scheme":"Other"},{"subitem_subject":"Temperature","subitem_subject_scheme":"Other"},{"subitem_subject":"Field","subitem_subject_scheme":"Other"},{"subitem_subject":"Illuminance","subitem_subject_scheme":"Other"},{"subitem_subject":"単木","subitem_subject_scheme":"Other"},{"subitem_subject":"Forest-tree","subitem_subject_scheme":"Other"},{"subitem_subject":"Respiration","subitem_subject_scheme":"Other"},{"subitem_subject":"林木個体","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":"research 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