{"created":"2023-05-15T15:16:04.703037+00:00","id":1827,"links":{},"metadata":{"_buckets":{"deposit":"de45dcad-a348-4414-9c91-b3229f5c1aff"},"_deposit":{"created_by":12,"id":"1827","owners":[12],"pid":{"revision_id":0,"type":"depid","value":"1827"},"status":"published"},"_oai":{"id":"oai:obihiro.repo.nii.ac.jp:00001827","sets":["74:75:87"]},"author_link":["4118","274","116","103"],"item_5_alternative_title_1":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"森林リター分解物を添加・培養した土壌における低分子脂肪族カルボン酸","subitem_alternative_title_language":"ja"}]},"item_5_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2006-10","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"67","bibliographicPageStart":"59","bibliographicVolumeNumber":"27","bibliographic_titles":[{"bibliographic_title":"帯広畜産大学学術研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Research bulletin of Obihiro University","bibliographic_titleLang":"en"}]}]},"item_5_description_19":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_5_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The effects of the addition of decomposing forest litter, collected from Podzolic soil organic layers (Oi, Oe and Oa) and Brown Forest soil Oe layers, on the amounts and composition of low molecular weight aliphatic carboxylic acids (LACAs) in soils were investigated by incubation experiments for 4 weeks. The total amounts of LACAs were greater at the beginning of incubation (384 to 1155 μmol kg-1), but decreased abruptly after 1 week, becoming relatively stable for a period of 1 to 4 weeks (299 to 377 μmol kg-1). The average amounts (without 0 weeks) of LACAs, especially acetic acid and citric acid, in soils incubated with forest litter under moderately moist conditions, were smaller than in the blank soil. Larger amounts of LACAs, especially formic acid, succinic acid, and citric acid, accumulated in soils incubated with forest litter under slightly wet conditions than in the blank soil. Changes in soil microflora and their activities induced by the differences in soil moisture conditions and incorporated decomposing forest litter can affect the balance of LACAs between production and decomposition in soils. Two types of decomposing forest litter collected from two Brown Forest soils, which are under almost the same vegetation and climatic conditions, but are from distinctly different parent materials, had nearly similar effects on the dynamics of LACAs. Three types of decomposing forest litter obtained from three layers of the Podzolic soil, which are substantially different in their decomposition degree, induced several changes in the composition of LACAs. The findings in the present study led to the conclusion that the decomposing forest litter derived from the vegetation present, the soil moisture conditions, and accompanying changes in soil microflora greatly influence the amounts and composition of LACAs in forest soils\nポドゾル性土の0i層，0e層および0a層，母材が異なる2種類の褐色森林土の0e層から採取した森林リター分解物を土壌に添加し，水分含量を最大容水量の60%(適潤条件)および80%(加湿条件)に調整して4週間の培養を行った。森林リター分解物の種類や水分条件などが低分子脂肪族カルボン酸(LACA)の量と組成に及ぼす影響を調べた。LACA総量は培養開始時に極めて高く(384～1155μmol kg-1)，1週間後には急激に減少した。培養1～4週間の間は，LACA総量の変動が比較的小さかった(299～377μmol kg-1)。培養開始時を除く期間中におけるLACA量の平均値は，とくに酢酸とクエン酸について，森林リター分解物を添加し適潤条件で培養した土壌において，リター無添加土壌よりも低かった。一方，加湿条件で培養した場合には，リターを添加した土壌でギ酸，コハク酸およびクエン酸が増加した。土壌水分条件と添加した森林リター分解物の違いは土壌微生物相とその活性に変化を引き起こし，土壌中におけるLACAの生産と分解の平衡状態に影響を及ぼした。母材が異なる2種類の褐色森林土は，植生および気候条件がほぼ同一であり，これらの0e層から採取したリター分解物が培養土壌中のLACAの量および組成に及ぼす影響に違いは認められなかった。一方，ポドゾル性土0層から採取した分解程度が異なる3種類のリター分解物は，培養土壌中のLACA組成に影響を及ぼした。本研究の結果より，森林リター分解物の分解程度，土壌水分条件，それらの違いに起因する土壌微生物のフローラと活性は，森林土壌における低分子脂肪族カルボン酸の量と組成に重要な影響を及ぼしていることが明らかとなった。","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Obihiro University of Agriculture and Veterinary Medicine","subitem_publisher_language":"en"}]},"item_5_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Obihiro University of Agriculture and Veterinary Medicine","subitem_rights_language":"en"}]},"item_5_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11877585","subitem_source_identifier_type":"NCID"}]},"item_5_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13485261","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_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Tani, Masayuki","creatorNameLang":"en"},{"creatorName":"谷, 昌幸","creatorNameLang":"ja"}],"familyNames":[{},{}],"givenNames":[{},{}],"nameIdentifiers":[{},{},{},{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Koike, Masanori","creatorNameLang":"en"},{"creatorName":"小池, 正徳","creatorNameLang":"ja"}],"familyNames":[{},{}],"givenNames":[{},{}],"nameIdentifiers":[{},{},{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Kuramochi, Katsuhisa","creatorNameLang":"en"},{"creatorName":"倉持, 勝久","creatorNameLang":"ja"}],"familyNames":[{},{}],"givenNames":[{},{}],"nameIdentifiers":[{},{},{},{}]},{"creatorNames":[{"creatorName":"Higashi, Teruo","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2018-01-30"}],"displaytype":"detail","filename":"Low.pdf","filesize":[{"value":"825.7 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"Low.pdf","url":"https://obihiro.repo.nii.ac.jp/record/1827/files/Low.pdf"},"version_id":"2cbeee42-03b4-4588-9662-7b6342662bc3"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"decomposing forest litter","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"forest soils","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"incubation experiment","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"low-molecular-weight aliphatic carboxylicacid (LACA)","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"soil microflora","subitem_subject_language":"en","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":"Low-molecular-weight aliphatic carboxylic acids in soils incubated with decomposing forest litter","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Low-molecular-weight aliphatic carboxylic acids in soils incubated with decomposing forest litter","subitem_title_language":"en"}]},"item_type_id":"5","owner":"12","path":["87"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2006-11-21"},"publish_date":"2006-11-21","publish_status":"0","recid":"1827","relation_version_is_last":true,"title":["Low-molecular-weight aliphatic carboxylic acids in soils incubated with decomposing forest litter"],"weko_creator_id":"12","weko_shared_id":-1},"updated":"2024-04-23T01:14:37.752509+00:00"}