{"created":"2021-03-01T06:43:11.909682+00:00","id":25254,"links":{},"metadata":{"_buckets":{"deposit":"ef26e5df-471b-4608-9884-b7de27553034"},"_deposit":{"id":"25254","owners":[],"pid":{"revision_id":0,"type":"depid","value":"25254"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00025254","sets":["27:2466:2467:2495","9:504:2469:2496"]},"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Potential habitat estimation of Salix hukaoana in macro scale and changes in distribution in Quaternary Period"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-07-25","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"51","bibliographicPageStart":"33","bibliographicVolumeNumber":"123","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":"絶滅危惧植物ユビソヤナギの保全方法の検討資料とするため，ユビソヤナギの潜在生育域を推定し，その結果を踏査により検証した。推定は東北地方から中部地方にかけての地域において，気候，地形，地質などの環境要因に基づきGIS を用いておこなった。また，過去の生育域を地史的な気候変動との関係から推定し，現在の分布への影響を考察した。ユビソヤナギの既知生育地は，温量指数60.1 ～ 85.5，積雪深80cm 以上，TPI 値－3 ～ 0，河床勾配0.1％～ 6.3％，集水域に占める花崗岩系と第三紀層の合計地質割合61.7％以上の範囲内に分布していたため，これらの条件が対象地域内の河川において重なる範囲を潜在生育区間と推定した。その結果248区間が選択され，既知生育地のほとんどはこれらの区間に含まれていた。このうち54 区間を踏査し，新たに7 区間にユビソヤナギの生育を確認した。このことから，本推定の確からしさが証明された。また，ユビソヤナギの過去の生育可能域は，最終氷期最盛期（約20,000 年前）には日本海側の丘陵地2 ヶ所ほどに，縄文海進期（約6,000 年前）には脊梁山脈沿いの狭い地域に限定されていたと推定された。なお，これらの地域から離れた場所には，先に推定された潜在生育区間であっても現在ユビソヤナギの生育は認められなかった。ユビソヤナギの潜在生育区間は，温度や積雪，地形，地質などの制限により非常に限定的であり，個体群の維持や分布地の拡大は容易ではない。同時に，その地質地形的特徴から，治山・砂防ダム，貯水ダムが作られやすいと考えられた。そのため，未知のユビソヤナギの生育地を早急に発見し，現在分布している河川において適切な保全対策をとることが緊急の課題であると考えられた。","subitem_description_type":"Abstract"},{"subitem_description":"Based on five environmental factors, the potential habitat of the endangered species Salix hukaoana in the area between Tohoku and Chubu, Japan, was estimated using a geographic information system (GIS). Past S. hukaoana habitat was also estimated in relation to historical climate change. The known distribution of S. hukaoana encompasses the following range of environments: warmth index 60.1–85.5, snow depth >80 cm, topographic position index (TPI) －3 to 0, and the proportion of granitic rocks and Tertiary layer in the watershed >61.7%. Consequently, 248 potential habitats along rivers were identified from areas where these ranges overlapped. After exploring 54 potential habitats, we discovered seven additional habitats. The distribution of S. hukaoana was restricted to two hilly terrain on the Sea of Japan side in the last glacial epoch, and to a narrow area along Ou mountain chain (part of the Chugoku range) in the Hypsithermal period. The strict limitation placed on its habitat by environment parameters inhibits the maintenance and expansion of S. hukaoana populations. Since its potential habitat is in areas that favour dam construction, the conservation of this species is threatened. Consequently, it is imperative that we identify unknown habitats and conserve them immediately.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"53592","nameIdentifierScheme":"WEKO"}],"names":[{"name":"SASHIMURA, Naoko"}]},{"nameIdentifiers":[{"nameIdentifier":"53593","nameIdentifierScheme":"WEKO"}],"names":[{"name":"IKEDA, Akihiko"}]},{"nameIdentifiers":[{"nameIdentifier":"53594","nameIdentifierScheme":"WEKO"}],"names":[{"name":"IDE, Yuji"}]}]},"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":"東京大学大学院農学生命科学研究科"},{"subitem_text_value":"品川区まちづくり事業部道路公園課"},{"subitem_text_value":"Graduate School of Agricultural and Life Sciences, University of Tokyo"},{"subitem_text_value":"Roads and Park Sec. of City Development Dep., Shinagawa City Office"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"指村, 奈穂子"}],"nameIdentifiers":[{"nameIdentifier":"53589","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"池田, 明彦"}],"nameIdentifiers":[{"nameIdentifier":"53590","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"井出, 雄二"}],"nameIdentifiers":[{"nameIdentifier":"53591","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":"ersh123003.pdf","filesize":[{"value":"1.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ersh123003.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/25254/files/ersh123003.pdf"},"version_id":"02a3310b-3e5b-4e46-8c29-12a8848be43d"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"ユビソヤナギ","subitem_subject_scheme":"Other"},{"subitem_subject":"潜在生育域","subitem_subject_scheme":"Other"},{"subitem_subject":"分布変遷","subitem_subject_scheme":"Other"},{"subitem_subject":"新産地","subitem_subject_scheme":"Other"},{"subitem_subject":"広域スケール","subitem_subject_scheme":"Other"},{"subitem_subject":"Salix hukaoana","subitem_subject_scheme":"Other"},{"subitem_subject":"potential habitat","subitem_subject_scheme":"Other"},{"subitem_subject":"distribution change","subitem_subject_scheme":"Other"},{"subitem_subject":"new locality, macro scale","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":"ユビソヤナギの広域的な潜在生育域推定及び分布変遷に関する考察","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ユビソヤナギの広域的な潜在生育域推定及び分布変遷に関する考察"}]},"item_type_id":"4","owner":"1","path":["2496","2495"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-07-17"},"publish_date":"2012-07-17","publish_status":"0","recid":"25254","relation_version_is_last":true,"title":["ユビソヤナギの広域的な潜在生育域推定及び分布変遷に関する考察"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T03:59:32.744032+00:00"}