{"created":"2025-11-18T04:55:49.280862+00:00","id":2001287,"links":{},"metadata":{"_buckets":{"deposit":"8ba63430-12bf-4fa3-b783-36e6fd5d1f97"},"_deposit":{"created_by":19,"id":"2001287","owner":"19","owners":[19],"pid":{"revision_id":0,"type":"depid","value":"2001287"},"status":"published"},"_oai":{"id":"oai:iwate-u.repo.nii.ac.jp:02001287","sets":["1504:1510"]},"author_link":[],"item_16_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2024-11-30","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"7","bibliographicNumberOfPages":"8","bibliographicPageEnd":"197","bibliographicPageStart":"190","bibliographicVolumeNumber":"106","bibliographic_titles":[{"bibliographic_title":"日本森林学会誌","bibliographic_titleLang":"ja"},{"bibliographic_title":"Journal of the Japanese Forest Society","bibliographic_titleLang":"en"}]}]},"item_16_date_6":{"attribute_name":"登録日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2025-11-18","subitem_date_issued_type":"Created"}]},"item_16_description_11":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"国産漆の需要が高まっているが，ウルシ林からの漆液収量の最大化を目標とした造成・管理方法に関する研究はほとんどない。現在，ウルシ主産地の岩手県二戸市では原木本数で管理されているものの，単木の漆液収量は幹直径に依存するため，直径サイズのばらつきを考慮して管理する必要がある。また，密度効果によって本数が減少することも考慮する必要がある。本研究では，岩手県北部および青森県南部のウルシ林49林分のデータを用いて，Y-N理論に基づき直径サイズ分布予測モデルを構築した。このとき，Y-N曲線のパラメータA，B，ならびに植栽後のウルシ個体の残存率は上層高の関数と仮定し，さらにこの関数に植栽密度や地位指数が影響する可能性があると仮定した。地位指数は，林齢と上層高の関係から地位指数曲線を作成して求めた。予測されたサイズ分布に対し，ウルシ1本当たりのサイズ別漆液収量に関する先行研究のデータを代入することで林分当たりの漆液収量を推定した。植栽密度と地位指数を変えてシミュレーションを行い，植栽密度や地位指数，漆搔きをする適当な林齢について検討した。","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"Although the demand for domestic lacquer has recently increased, few studies have reported how to establish and manage a lacquer tree plantation for maximizing the yield of lacquer. Currently, lacquer tree resources are managed based on the number of trees. However, the size distribution in the stand rather than the number of trees should be used, as the yield of lacquer per tree depends strongly on trunk diameter. Furthermore, the survival ratio should be considered, as the species is shade-intolerant and shaded trees die easily due to density effects. Here, a prediction model for the diameter-size distribution based on Y-N theory was constructed using data from 49 lacquer tree stands in northern Iwate and southern Aomori. The parameters A and B of the Y-N curve, as well as the survival ratio after planting, were assumed to be a function of the overstory height of the stand (Hc). The effect of planting density (PD) and the site quality index (SI) were evaluated for these functions. SI was obtained from an SI curve based on the relationship between stand age and Hc. We estimated the yield of lacquer per stand by substituting the yield of lacquer per tree with respect to trunk diameter, which was previously reported for the predicted distribution. Then, the maximum yield of lacquer per stand was evaluated with different PDs and SIs.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_16_publisher_14":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"一般社団法人日本森林学会","subitem_publisher_language":"ja"},{"subitem_publisher":"The Japanese Forest Society","subitem_publisher_language":"en"}]},"item_16_relation_26":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.4005/jjfs.106.190","subitem_relation_type_select":"DOI"}}]},"item_16_rights_18":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International","subitem_rights_language":"en","subitem_rights_resource":"https://creativecommons.org/licenses/by-nc-nd/4.0/"}]},"item_16_source_id_25":{"attribute_name":"NCID","attribute_value_mlt":[{"subitem_source_identifier":"AA12003078","subitem_source_identifier_type":"NCID"}]},"item_16_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-398X","subitem_source_identifier_type":"EISSN"},{"subitem_source_identifier":"1349-8509","subitem_source_identifier_type":"PISSN"}]},"item_16_version_type_27":{"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_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":[{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"岩手大学","affiliationNameLang":"ja"},{"affiliationName":"Iwate University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"会田, 裕雅","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"AITA, Yuga","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"北海道大学","affiliationNameLang":"ja"},{"affiliationName":"Hokkaido University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"中村, 大","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"NAKAMURA, Masaru","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"岩手大学","affiliationNameLang":"ja"},{"affiliationName":"Iwate University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"真坂, 一彦","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"MASAKA, Kazuhiko","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"岩手大学","affiliationNameLang":"ja"},{"affiliationName":"Iwate University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"白旗, 学","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"SHIRAHATA, Manabu","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"岩手大学","affiliationNameLang":"ja"},{"affiliationName":"Iwate University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"松木, 佐和子","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"MATSUKI, Sawako","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"岩手大学","affiliationNameLang":"ja"},{"affiliationName":"Iwate University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"山崎, 遥","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"YAMAZAKI, Haruka","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"岩手大学","affiliationNameLang":"ja"},{"affiliationName":"Iwate University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"浅瀬石 育吹","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"ASEISHI, Ibuki","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2025-11-18"}],"filename":"jjfs-v106n7p190-197.pdf","filesize":[{"value":"1.5 MB"}],"format":"application/pdf","url":{"label":"jjfs-v106n7p190-197.pdf","objectType":"fulltext","url":"https://iwate-u.repo.nii.ac.jp/record/2001287/files/jjfs-v106n7p190-197.pdf"},"version_id":"acfd3977-35e8-4a08-bfc2-7d55a9e29dab"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"上層高","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"残存率","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"地位指数","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"植栽密度","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"予測モデル","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"overstory height","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"survival ratio","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"site quality","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"planting density","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"prediction model","subitem_subject_language":"en","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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Y-N理論を用いたウルシ林のサイズ分布予測と林分当たり最大漆液収量の推定","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Y-N理論を用いたウルシ林のサイズ分布予測と林分当たり最大漆液収量の推定","subitem_title_language":"ja"}]},"item_type_id":"16","owner":"19","path":["1510"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-11-18"},"publish_date":"2025-11-18","publish_status":"0","recid":"2001287","relation_version_is_last":true,"title":["Y-N理論を用いたウルシ林のサイズ分布予測と林分当たり最大漆液収量の推定"],"weko_creator_id":"19","weko_shared_id":-1},"updated":"2025-11-18T05:57:52.365390+00:00"}