{"created":"2023-06-19T12:44:11.507736+00:00","id":3595,"links":{},"metadata":{"_buckets":{"deposit":"d69c2969-bfe4-45bc-982d-c7ed2cfcde5a"},"_deposit":{"created_by":3,"id":"3595","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"3595"},"status":"published"},"_oai":{"id":"oai:tokyo-metro-u.repo.nii.ac.jp:00003595","sets":["521:600:602:603:611"]},"author_link":["10320","10314","10318","10322","10316","10323","10315","10319","10317","10321"],"item_3_alternative_title_19":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Development of a New Land Management Practice for Coral Conservation in Okinawa, Japan : 2. Optimization of the “Winged Bean Band”"}]},"item_3_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2015-01-31","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"8","bibliographicPageEnd":"97","bibliographicPageStart":"91","bibliographic_titles":[{"bibliographic_title":"観光科学研究"}]}]},"item_3_creator_3":{"attribute_name":"著者別名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Ikazaki, Kenta"}],"nameIdentifiers":[{"nameIdentifier":"10319","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Omae, Hide"}],"nameIdentifiers":[{"nameIdentifier":"10320","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nagumo, Fujio"}],"nameIdentifiers":[{"nameIdentifier":"10321","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Iwai, Kaeko"}],"nameIdentifiers":[{"nameIdentifier":"10322","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kosaki, Takashi"}],"nameIdentifiers":[{"nameIdentifier":"10323","nameIdentifierScheme":"WEKO"}]}]},"item_3_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"沖縄では赤土汚染によるサンゴの被害が収束しておらず，その対策は依然として喫緊の課題である。前報（伊ヶ崎ら 2013）では，サトウキビ畑における新たな赤土流出抑制技術として｢シカクマメバンド｣を開発し，その有効性を実証した。ただし，畑のつぶれ地（サトウキビを栽植できない部分）の割合を左右するバンド（サトウキビを植え付ける際に畑に残す帯状のシカクマメの栽植部分）の最適幅の検討が課題として残された。そこで本研究では，（独）国際農林水産業研究センター熱帯・島嶼研究拠点（沖縄県石垣市）での圃場試験を通して，前報の幅（2m）とその半分の幅（1m）のバンドによる赤土流出抑制効果の違いを検証した。得られた結果は以下の通りである。1. 前報では「シカクマメバンド」により赤土流出が94％抑制されたが，シカクマメが畑の地表面を概ね被覆する時期までに大きな降雨イベントがあった場合や，台風によりシカクマメの植物体が被害を受けた場合には，「シカクマメバンド」の赤土流出抑制効果は低下し得る。2. バンド幅の違い（1mと2m）による赤土流出抑制効果の違いは見られないことから，バンドは幅1 m でも十分に赤土流出を抑制できる。以上のことから，仮にサトウキビ畑の斜度を3%程度と仮定すると，「シカクマメバンド」で高い赤土流出抑制効果と最小限のつぶれ地を両立するには，サトウキビを植え付ける際に約70m 間隔で幅1m のバンドを設定すれば良いことが示された。","subitem_description_type":"Abstract"},{"subitem_description":"In Okinawa, corals are being damaged by bleaching, feeding by crown-of-thorns starfish (Acanthaster planci (L.)), and habitat degradation from seawater pollution and all of which are closely related to the water-eroded soil materials from the cultivated fields (especially sugarcane fields). In the previous study, we developed the “winged bean band (WBB)” to control water erosion in the fields and verified its effectiveness. The objective of this study was to optimize the WBB, that is, to secure the effectiveness of the water erosion control and, at the same time, to minimize the land where the winged bean (Psophocarpus tetragonolobus (L.) D.C.) is left as a band and the sugarcane cannot be planted (the cost for the famers). Field experiment conducted at the Tropical Agriculture Research Front, Japan International Research Center for Agricultural Sciences (JIRCAS) from March 2013 to March 2014 revealed that the high effectiveness of water erosion control and low cost for farmers can be achieved when the width of the winged bean band is 1 m and they are established at the interval of more than 9.5m, depending on the steepness of the field (when the slope of the field is 2%, 3%, 4%, 5%, 6%, then the interval should be 244m, 74m, 26m, 15m, 9.5m, respectively). In the future study, we will investigate if the WBB can improve farm income, which is critical to the practicality for the farmers in Okinawa.","subitem_description_type":"Abstract"}]},"item_3_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"首都大学東京 大学院 都市環境科学研究科 観光科学域"}]},"item_3_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12343826","subitem_source_identifier_type":"NCID"}]},"item_3_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"18824498","subitem_source_identifier_type":"ISSN"}]},"item_3_version_type_16":{"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":[{"creatorNames":[{"creatorName":"伊ヶ崎, 健大"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"大前, 英"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"南雲, 不二男"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"岩井, 香泳子"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小﨑, 隆"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-08-04"}],"displaytype":"detail","filename":"20010-008-010.pdf","filesize":[{"value":"693.2 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"20010-008-010.pdf","url":"https://tokyo-metro-u.repo.nii.ac.jp/record/3595/files/20010-008-010.pdf"},"version_id":"21bd08cd-fd7b-4163-9578-f4bc7c1071c2"}]},"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":"沖縄における陸域での新たなサンゴ保全技術の開発 : 第2報「シカクマメバンド」の最適化","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"沖縄における陸域での新たなサンゴ保全技術の開発 : 第2報「シカクマメバンド」の最適化"}]},"item_type_id":"3","owner":"3","path":["611"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-27"},"publish_date":"2015-03-27","publish_status":"0","recid":"3595","relation_version_is_last":true,"title":["沖縄における陸域での新たなサンゴ保全技術の開発 : 第2報「シカクマメバンド」の最適化"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-06-19T18:11:20.061192+00:00"}