{"created":"2022-01-27T02:36:41.934844+00:00","id":2002720,"links":{},"metadata":{"_buckets":{"deposit":"f78f8512-8f69-4c08-af87-ce857038ac15"},"_deposit":{"id":"2002720","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2002720"},"status":"published"},"_oai":{"id":"oai:u-ryukyu.repo.nii.ac.jp:02002720","sets":["1642837622505:1642837905044:1642837920612","1642838403551:1642838407312"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_1551255647225":"沖縄本島北部における天然生常緑広葉樹林の A_0 層の有機物及び養分集積量について","subitem_1551255648112":"ja"},{"subitem_1551255647225":"Characteristics of Nutrient Accumulation in Forest Floor under Evergreen Broadleaved Forests in Okinawa Island","subitem_1551255648112":"en"}]},"item_1617186419668":{"attribute_name":"Creator","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"徐, 小牛","creatorNameLang":"ja"}]},{"creatorNames":[{"creatorName":"渡嘉敷, 義浩","creatorNameLang":"ja"}]},{"creatorNames":[{"creatorName":"榎木, 勉","creatorNameLang":"ja"}]},{"creatorNames":[{"creatorName":"平田, 永二","creatorNameLang":"ja"}]},{"creatorNames":[{"creatorName":"Xu, Xiaoniu","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Tokashiki, Yoshihiro","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Enoki, Tsutomu","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Hirata, Eiji","creatorNameLang":"en"}]}]},"item_1617186476635":{"attribute_name":"Access Rights","attribute_value_mlt":[{"subitem_1522299639480":"open access","subitem_1600958577026":"http://purl.org/coar/access_right/c_abf2"}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_1522299896455":"ja","subitem_1522300014469":"Other","subitem_1523261968819":"常緑広葉樹林"},{"subitem_1522299896455":"ja","subitem_1522300014469":"Other","subitem_1523261968819":"A_0層"},{"subitem_1522299896455":"ja","subitem_1522300014469":"Other","subitem_1523261968819":"有機炭素"},{"subitem_1522299896455":"ja","subitem_1522300014469":"Other","subitem_1523261968819":"養分集積量"},{"subitem_1522299896455":"ja","subitem_1522300014469":"Other","subitem_1523261968819":"土壌型"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"evergreen broadleaved forest"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"forest floor"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"organic carbon"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"nutrient accumulation"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"soil type"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"沖縄本島北部の天然生常緑広葉樹林における地表(A_0層)に集積する有機物および養分について,22プロットでリターを採取(1996年7月&acd;8月)して測定した結果,およそ次のことが明らかとなった。1. A_0層の有機物集積量は,12Mg ha^<-1>で,その内,有機炭素が6Mg ha^<-1>を占めた。2. A_0層中の養分集積量は, 全窒素が84.1&acd;258.5kg ha^<-1>, リンが1.7&acd;10.4kg ha^<-1>, カリウムが9.0&acd;37.0kg ha^<-1>, カルシウムが60.0&acd;230.3kg ha^<-1>, マグネシウムが15.0&acd;29.7kg ha^<-1>, ナトリウムが1.9&acd;15.9kg ha^<-1>, いおうが8.78&acd;20.1kg ha^<-1>, アルミニウムが17.8&acd;132.5kg ha^<-1>, 鉄が5.3&acd;77.0kg ha^<-1>, マンガンが2.0&acd;16.9kg ha^<-1>で,微量元素の銅,亜鉛,ほう素,モリブデン,コバルトは極めて少ないことがわかった。3. 各元素の集積量と有機物集積量の関係について検討した結果,炭素,窒素,リン,カリウム,カルシウム,マグネシウム,いおう,ナトリウム,アルミニウムおよび亜鉛の10元素に0.51&acd;0.94のかなり高い相関(P<0.05,t-test)が認められた。4. 土壌型は,有機物集積量及び養分集積量への影響が大きく,弱乾性黄色土(Y_c)よりも,乾性黄色土(Y_B)の方が多くなることが明らかとなった。","subitem_description_type":"Other"},{"subitem_description":"The accumulations of organic matter and nutrients in forest floor under natural evergreen broadleaved forests were studied at 22 sites in experimental field, University of the Ryukyus at Yona, Okinawa. The organic matter and total carbon accumulation in forest floor amounted 12.0 Mg(D.W.)・ha^<-1> and 6.1Mg・ha^<-1>, respectively. The inventory of the other nutrient elements were, N 84.1&acd;258.5kg・ha^<-1>, P 1.7&acd;10.4kg・ha^<-1>, K 9.0&acd;37.0kg・ha^<-1>, Ca 60.0&acd;230.3kg・ha^<-1>, Mg 15.0&acd;29.7kg・ha^<-1>, Na 1.9&acd;15.9kg・ha^<-1>, S 8.7&acd;20.1kg・ha^<-1>, Al 17.8&acd;132.5kg・ha^<-1>, Fe 5.3&acd;77.0kg・ha^<-1>, and Mn 2.0&acd;16.9kg・ha^<-1>, respectively. The amounts of other microelements such as Cu, Zn, Mo, Co and B accumulating in forest floor were very rather low. The nutrient accumulation in forest floor was, generally, significantly related to the forest floor mass, particularly for C, Mg, S and Ca (P<0.001,t-test), and for N (P<0.01), and for P, K, Zn, Na and Al (P<0.05). Within 15 nutrient elements, Al and Fe were primarily accumulated in the F. H. layer, N, Mg and Mn were, however, mainly accumulated in the foliage litter. The patterns of organic matter and nutrient accumulations in the forest floor evidently differed with soil types.","subitem_description_type":"Other"},{"subitem_description":"紀要論文","subitem_description_type":"Other"}]},"item_1617186643794":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_1522300295150":"ja","subitem_1522300316516":"琉球大学農学部"}]},"item_1617186702042":{"attribute_name":"Language","attribute_value_mlt":[{"subitem_1551255818386":"eng"}]},"item_1617186783814":{"attribute_name":"Identifier","attribute_value_mlt":[{"subitem_identifier_type":"HDL","subitem_identifier_uri":"http://hdl.handle.net/20.500.12000/3691"}]},"item_1617186920753":{"attribute_name":"Source Identifier","attribute_value_mlt":[{"subitem_1522646500366":"ISSN","subitem_1522646572813":"0370-4246"},{"subitem_1522646500366":"NCID","subitem_1522646572813":"AN00250548"}]},"item_1617186941041":{"attribute_name":"Source Title","attribute_value_mlt":[{"subitem_1522650068558":"ja","subitem_1522650091861":"琉球大学農学部学術報告"},{"subitem_1522650068558":"en","subitem_1522650091861":"The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus"}]},"item_1617187056579":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicIssueNumber":"45","bibliographicPageEnd":"193","bibliographicPageStart":"185"}]},"item_1617258105262":{"attribute_name":"Resource Type","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_1617265215918":{"attribute_name":"Version Type","attribute_value_mlt":[{"subitem_1522305645492":"VoR","subitem_1600292170262":"http://purl.org/coar/version/c_970fb48d4fbd8a85"}]},"item_1617605131499":{"attribute_name":"File","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","filename":"KJ00000161861.pdf","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://u-ryukyu.repo.nii.ac.jp/record/2002720/files/KJ00000161861.pdf"},"version_id":"7648f5e3-9698-4ca4-8e59-6cc2672c5dce"}]},"item_title":"沖縄本島北部における天然生常緑広葉樹林の A_0 層の有機物及び養分集積量について","item_type_id":"15","owner":"1","path":["1642837920612","1642838407312"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2008-02-14"},"publish_date":"2008-02-14","publish_status":"0","recid":"2002720","relation_version_is_last":true,"title":["沖縄本島北部における天然生常緑広葉樹林の A_0 層の有機物及び養分集積量について"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-02-14T21:40:06.367524+00:00"}