{"created":"2021-03-01T06:43:21.890796+00:00","id":25408,"links":{},"metadata":{"_buckets":{"deposit":"f4e22c96-f50f-4198-be21-2d344f85f288"},"_deposit":{"id":"25408","owners":[],"pid":{"revision_id":0,"type":"depid","value":"25408"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00025408","sets":["27:2466:2467:2545","9:504:2469:2546"]},"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Input and Output Flux of Inorganic Nutrients in Decomposing Leaf Litter of Japanese Cedar"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1997","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"133","bibliographicPageStart":"117","bibliographicVolumeNumber":"98","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":"スギ落葉の分解にともなう無機成分の溶出パターンについて検討をおこなった。新鮮落葉を入れたポットを林床におき，5年間にわたって落葉から流出する無機成分の分析を行った。いずれの成分にも溶出パターンには季節変化があり分解が活発に進行する夏期に溶出量が多い傾向があった。Caは最初の1年間に溶出が特に多く5年間の全溶出量のおよそ55％がこの期間に失われた。その後はほぼ一定の割合で溶出が続いた。MgはCaと同様のパターンを示し，最初の1年間で73％が流出したが，それ以降の流出量はごく僅かであった。CaとMgのこのような違いはスギ落葉に含まれる両成分量の差によるものと考えられた。Kはごく初期に大部分が溶出し，それ以降の溶出は僅かであった。Kの溶出パターンは分解にともなうものではなく，むしろ溶脱によるものと考えられた。Pも分解初期の夏期に増大する傾向を示した。Pの溶出はほとんどが落葉の分解の中期（F層に相当する）段階に限られ，それ以降は流入量が流出量を上回ることが多かった。Na，Feについてははっきりした傾向を示さなかった。Cl－，SO2－4は分解の初期は流入量が流出量を上回ったがそれ以降は明確な傾向を示さなかった。","subitem_description_type":"Abstract"},{"subitem_description":"The pattern of release of some inorganic nutrients from decomposing Japanese Cedar (Cryptomeria japonica D. Don) leaf litter was studied for 5 years by comparing the amount of nutrients in the throughfall and water flowing out from the litter put on the forest floor of the same tree species. Loss of nutrients was generally higher in the summer. About 55% of calcium was lost in the first year, which corresponded to the L and F1 stage of decomposition. Elution of calcium continued without much fluctuation until the end of the experiment. The elution pattern of magnesium was similar to that of calcium, but the initial loss from the litter was much higher. About 73% was lost in the first year. The difference was suggested to be due to the difference of the amount of calcium and magnesium in the litter. Most of the potassium was lost at a very early period, suggesting that the loss was related to leaching rather than decomposition. On the other hand, phosphorus was lost mainly in the summer, suggesting that its loss was closely related to decomposition. Most of the phosphorus was lost during the F1 and F2 stages of decomposition. Other nutrients, such as sodium, iron, sulfur and chlorine, did not show any distinct pattern of release.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"54545","nameIdentifierScheme":"WEKO"}],"names":[{"name":"HARUTA, Yasuji"}]},{"nameIdentifiers":[{"nameIdentifier":"54546","nameIdentifierScheme":"WEKO"}],"names":[{"name":"NIOH, Ichio"}]}]},"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":"東京大学農学部附属演習林愛知演習林"},{"subitem_text_value":"静岡大学農学部応用生物化学科"},{"subitem_text_value":"University Forest in Aichi, Faculty of Aagriculture, The University of Tokyo"},{"subitem_text_value":"Department of Applied Biological Chemistry, Faculty of Agriculture, Shizuoka University"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"春田, 泰次"}],"nameIdentifiers":[{"nameIdentifier":"54543","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"仁王, 以智夫"}],"nameIdentifiers":[{"nameIdentifier":"54544","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":"esrh098005.pdf","filesize":[{"value":"860.1 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"esrh098005.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/25408/files/esrh098005.pdf"},"version_id":"0e9b1af6-3d02-4042-8385-62e21db0a870"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"スギ","subitem_subject_scheme":"Other"},{"subitem_subject":"落葉分解","subitem_subject_scheme":"Other"},{"subitem_subject":"流入成分","subitem_subject_scheme":"Other"},{"subitem_subject":"流出成分","subitem_subject_scheme":"Other"},{"subitem_subject":"Japanese Cedar","subitem_subject_scheme":"Other"},{"subitem_subject":"Litter decomposition","subitem_subject_scheme":"Other"},{"subitem_subject":"Components of influx","subitem_subject_scheme":"Other"},{"subitem_subject":"Components of outflow","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":"スギ落葉の分解にともなう無機成分の流入と流出","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"スギ落葉の分解にともなう無機成分の流入と流出"}]},"item_type_id":"4","owner":"1","path":["2546","2545"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-09-03"},"publish_date":"2014-09-03","publish_status":"0","recid":"25408","relation_version_is_last":true,"title":["スギ落葉の分解にともなう無機成分の流入と流出"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T04:03:40.931717+00:00"}