{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390283659867419520.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.4005/jjfs.102.38"}},{"identifier":{"@type":"URI","@value":"https://agriknowledge.affrc.go.jp/RN/2030932026"}},{"identifier":{"@type":"NDL_BIB_ID","@value":"030329659"}},{"identifier":{"@type":"URI","@value":"http://id.ndl.go.jp/bib/030329659"}},{"identifier":{"@type":"URI","@value":"https://ndlsearch.ndl.go.jp/books/R000000004-I030329659"}},{"identifier":{"@type":"URI","@value":"https://www.jstage.jst.go.jp/article/jjfs/102/1/102_38/_pdf"}},{"identifier":{"@type":"NAID","@value":"130007825399"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@language":"en","@value":"The Examination of Cost-effective Weeding Schedules Using Monte Carlo Simulation:"},{"@language":"ja","@value":"モンテカルロシミュレーションによるコスト対効果に優れた下刈りスケジュールの検討"},{"@value":"モンテカルロシミュレーションによるコスト対効果に優れた下刈りスケジュールの検討 : 鹿児島大学附属高隈演習林のスギ林分を事例として"},{"@language":"ja-Kana","@value":"モンテカルロシミュレーション ニ ヨル コスト タイ コウカ ニ スグレタ シタガリ スケジュール ノ ケントウ : カゴシマ ダイガク フゾク コウクマ エンシュウリン ノ スギバヤシ ブン オ ジレイ ト シテ"}],"dcterms:alternative":[{"@language":"en","@value":"A Case Study of the Sugi (<i>Cryptomeria japonica</i>) Stand in Takakuma Experimental Forest of Kagoshima University"},{"@language":"ja","@value":"―鹿児島大学附属高隈演習林のスギ林分を事例として―"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"<p>This study identified the cost-effective weeding schedules for reducing weeding cost. First, we used a Monte Carlo method to simulate 7-year-old sugi (<i>Cryptomeria Japonica</i>) mean height and cumulative weeding operation time under different combinations of weeding timing and frequency from 0 to 6 times after planting. Then, we calculated operation time per sugi mean height to express cost-effectiveness. Moreover, to evaluate the stability of the cost-effectiveness, we calculated coefficient of variation for sugi mean height, cumulative operation time and operation time per sugi height. Each coefficient of variation was lower when weeding frequency was equal to or more than three times. The operation time per sugi height decreased when weeding was conducted in the first or second year after planting. We conclude that the three-treatment weeding frequency including the first- or second-year weeding is more effective weeding for the reduction of weeding costs.</p>"},{"@language":"ja","@value":"<p>コスト対効果に優れた下刈りスケジュールを明らかにするため，モンテカルロ法によるシミュレーションを行った。全64通りの下刈りスケジュールにおいて，下刈り終了時のスギ林分樹高と下刈りの累積作業時間を推定した。また，下刈り作業のコスト対効果の高さを表現するため，単位樹高成長当たりの作業時間を算出した。確実な下刈りの効果が確保されるか検証するため，スギ林分樹高・累積作業時間・単位樹高成長当たりの作業時間の変動係数を計算した。その結果，それぞれの変動係数は下刈り回数が3 回以上で小さくなる傾向がみられ，植栽後1，2 年目に下刈りを実施するスケジュールで単位樹高成長当たりの作業時間は小さくなった。以上のことから，下刈り回数は3 回以上で，かつ植栽後早い時期（1 年目または2 年目）に下刈りを実施するスケジュールで，コスト対効果が高くなることが示唆された。</p>"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410001205706021253","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000409472296"},{"@type":"NRID","@value":"9000408635688"},{"@type":"NRID","@value":"9000409763006"},{"@type":"NRID","@value":"9000392053648"},{"@type":"NRID","@value":"9000329018205"},{"@type":"NRID","@value":"9000347221137"},{"@type":"NRID","@value":"9000412211395"},{"@type":"NRID","@value":"9000392053656"},{"@type":"NRID","@value":"9000409763246"},{"@type":"NRID","@value":"9000329017876"},{"@type":"NRID","@value":"9000397688323"},{"@type":"NRID","@value":"9000329018191"},{"@type":"NRID","@value":"9000396146259"},{"@type":"NRID","@value":"9000402465458"},{"@type":"NRID","@value":"9000402465442"},{"@type":"NRID","@value":"9000409763239"},{"@type":"NRID","@value":"9000283888547"},{"@type":"NRID","@value":"9000392053695"},{"@type":"NRID","@value":"9000410463118"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/kfukumoto"}],"foaf:name":[{"@language":"en","@value":"Fukumoto Keiko"},{"@language":"ja","@value":"福本 桂子"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Forestry and Forest Products Research Institute, Forest Research and Management Organization"},{"@language":"ja","@value":"国立研究開発法人森林研究・整備機構森林総合研究所"}]},{"@id":"https://cir.nii.ac.jp/crid/1420001326217611520","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"10753717"},{"@type":"NRID","@value":"1000010753717"},{"@type":"NRID","@value":"9000020195136"},{"@type":"NRID","@value":"9000408635689"},{"@type":"NRID","@value":"9000402912800"},{"@type":"NRID","@value":"9000392053645"},{"@type":"NRID","@value":"9000410631889"},{"@type":"NRID","@value":"9000392053654"},{"@type":"NRID","@value":"9000018787472"},{"@type":"NRID","@value":"9000409186288"},{"@type":"NRID","@value":"9000399215471"},{"@type":"NRID","@value":"9000311522207"},{"@type":"NRID","@value":"9000311522214"},{"@type":"NRID","@value":"9000392053696"},{"@type":"NRID","@value":"9000410463116"},{"@type":"NRID","@value":"9000396146447"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/OtaTetsuji"}],"foaf:name":[{"@language":"en","@value":"Ota Tetsuji"},{"@language":"ja","@value":"太田 徹志"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Institute of Decision Science for a Sustainable Society, Kyushu University"},{"@language":"ja","@value":"九州大学持続可能な社会のための決断科学センター"}]},{"@id":"https://cir.nii.ac.jp/crid/1420564276169223680","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"00274522"},{"@type":"NRID","@value":"1000000274522"},{"@type":"KAKEN_RESEARCHERS","@value":"60390712"},{"@type":"NRID","@value":"1000060390712"},{"@type":"ORCID","@value":"0000-0001-8461-3696"},{"@type":"CINII_AUTHOR_ID","@value":"DA17963593"},{"@type":"URI","@value":"https://ci.nii.ac.jp/author/DA17963593#entity"},{"@type":"URI","@value":"https://viaf.org/viaf/NII%7CDA17963593"},{"@type":"NRID","@value":"9000020194877"},{"@type":"NRID","@value":"9000283883893"},{"@type":"NRID","@value":"9000408635690"},{"@type":"NRID","@value":"9000006910269"},{"@type":"NRID","@value":"9000258398183"},{"@type":"NRID","@value":"9000017388047"},{"@type":"NRID","@value":"9000392050287"},{"@type":"NRID","@value":"9000258480393"},{"@type":"NRID","@value":"9000021677344"},{"@type":"NRID","@value":"9000409186289"},{"@type":"NRID","@value":"9000408635701"},{"@type":"NRID","@value":"9000399215470"},{"@type":"NRID","@value":"9000283886903"},{"@type":"NRID","@value":"9000387906908"},{"@type":"NRID","@value":"9000241965567"},{"@type":"NRID","@value":"9000283788897"},{"@type":"NRID","@value":"9000392765024"},{"@type":"NRID","@value":"9000311522213"},{"@type":"NRID","@value":"9000410463119"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/read0148591"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/nobuyamizoue"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/ryunosuke_tateno"}],"foaf:name":[{"@language":"en","@value":"Mizoue Nobuya"},{"@language":"ja","@value":"溝上 展也"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"九州大学大学院農学研究院"},{"@language":"en","@value":"Faculty of Agriculture, Kyushu University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410283659867419521","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000408635691"}],"foaf:name":[{"@language":"en","@value":"Yoshida Shigejiro"},{"@language":"ja","@value":"吉田 茂二郎"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"九州大学大学院農学研究院"},{"@language":"en","@value":"Faculty of Agriculture, Kyushu University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410283659867419526","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000408635692"}],"foaf:name":[{"@language":"en","@value":"Teraoka Yukio"},{"@language":"ja","@value":"寺岡 行雄"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"鹿児島大学農水産獣医学域農学系"},{"@language":"en","@value":"Faculty of Agriculture, Kagoshima 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Jpn. For. Soc."},{"@language":"ja","@value":"日林誌"},{"@language":"en","@value":"Journal of Japanese Forest Research"}],"dc:publisher":[{"@language":"en","@value":"The Japanese Forest Society"},{"@language":"ja","@value":"一般社団法人 日本森林学会"}],"prism:publicationDate":"2020-02-01","prism:volume":"102","prism:number":"1","prism:startingPage":"38","prism:endingPage":"43"},"reviewed":"false","url":[{"@id":"https://agriknowledge.affrc.go.jp/RN/2030932026"},{"@id":"http://id.ndl.go.jp/bib/030329659"},{"@id":"https://ndlsearch.ndl.go.jp/books/R000000004-I030329659"},{"@id":"https://www.jstage.jst.go.jp/article/jjfs/102/1/102_38/_pdf"},{"@id":"https://agriknowledge.affrc.go.jp/RN/2010932026"}],"availableAt":"2020-02-01","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=weeding","dc:title":"weeding"},{"@id":"https://cir.nii.ac.jp/all?q=low-cost%20silviculture","dc:title":"low-cost silviculture"},{"@id":"https://cir.nii.ac.jp/all?q=Monte%20Carlo%20method","dc:title":"Monte Carlo method"},{"@id":"https://cir.nii.ac.jp/all?q=simulation","dc:title":"simulation"},{"@id":"https://cir.nii.ac.jp/all?q=%E4%B8%8B%E5%88%88%E3%82%8A","dc:title":"下刈り"},{"@id":"https://cir.nii.ac.jp/all?q=%E4%BD%8E%E3%82%B3%E3%82%B9%E3%83%88%E9%80%A0%E6%9E%97","dc:title":"低コスト造林"},{"@id":"https://cir.nii.ac.jp/all?q=%E3%83%A2%E3%83%B3%E3%83%86%E3%82%AB%E3%83%AB%E3%83%AD%E6%B3%95","dc:title":"モンテカルロ法"},{"@id":"https://cir.nii.ac.jp/all?q=%E3%82%B7%E3%83%9F%E3%83%A5%E3%83%AC%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3","dc:title":"シミュレーション"}],"project":[{"@id":"https://cir.nii.ac.jp/crid/1040000781993106048","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"18H02244"},{"@type":"JGN","@value":"JP18H02244"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18H02244/"}],"notation":[{"@language":"ja","@value":"地上レーザ・スキャナのための森林計測学の新しい理論の構築"},{"@language":"en","@value":"Construction of a new theory of forest measurement for terrestrial laser scanning"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360572092504828672","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The effect of weeding frequency and schedule on weeding operation time: a simulation study on a sugi (Cryptomeria japonica) plantation in Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699995839745536","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The effect of weeding frequency and timing on the height growth of young sugi (<i>Cryptomeria japonica</i>) in southwestern Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1363388845161522304","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Critical period of interspecific competition for northern conifers associated with herbaceous vegetation"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679433845504","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"スギ植栽木の成長と下刈り対象木の競合状態との関係"},{"@language":"en","@value":"The relationship between replanted tree height growth and state of competition with weeds in replanted Sugi (Cryptomeria japonica) forests"}]}],"dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:2007722117"},{"@type":"IRDB","@value":"oai:irdb.nii.ac.jp:03420:0004817612"},{"@type":"NDL_SEARCH","@value":"oai:ndlsearch.ndl.go.jp:R000000004-I030329659"},{"@type":"CROSSREF","@value":"10.4005/jjfs.102.38"},{"@type":"CIA","@value":"130007825399"},{"@type":"KAKEN","@value":"PRODUCT-22952053"},{"@type":"OPENAIRE","@value":"doi_dedup___::4d488c85b65f0f8154c3f79aed39df6e"}]}