{"created":"2023-05-15T13:41:37.162826+00:00","id":6793,"links":{},"metadata":{"_buckets":{"deposit":"991a043c-16d6-42c7-8b91-18074565992a"},"_deposit":{"created_by":11,"id":"6793","owners":[11],"pid":{"revision_id":0,"type":"depid","value":"6793"},"status":"published"},"_oai":{"id":"oai:repository.naro.go.jp:00006793","sets":["1706970004180:1:420:555"]},"author_link":["2067"],"item_7_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-10-31","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"41","bibliographicPageStart":"35","bibliographicVolumeNumber":"8","bibliographic_titles":[{"bibliographic_title":"農研機構研究報告"},{"bibliographic_title":"Journal of the NARO Research and Development","bibliographic_titleLang":"en"}]}]},"item_7_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":" Grassland renovation, including plowing and potassium fertilization is a major remediation technique that is applied to grassland contaminated with radionuclides released during the Tokyo Electric Power Company’s Fukushima Daiichi nuclear power plant accident. There are many public pastures on mountains in the Tohoku region (northeastern Honshu, Japan). Many of them are too steep for mechanical grassland renovation. A renovation method using a radio-controlled crawler tractor was developed for grasslands with steep slopes of 15 - 30̊. This tractor can also be used for mowing the grass on riverbeds. It can be operated up to 100 m away and automatically stops when it goes out of radio range. Together with Matsuyama Plow Mfg. Co., Ltd., we developed a rotary tiller for this tractor. As a result, a series of grassland renovation tasks, such as sweeping up contaminated vegetation, fertilization, tillage, sowing, and soil packing has been made safe by remote work in combination with a commercialized flail mower, a broadcaster whose spraying performance has been confirmed, and a prototype roller. The developed rotary tiller is able to closely track the ground surface, can finely cultivate the soil, and the tilling blades are highly durable, even in stony soil. In our experimental trials, the air dose rate of grassland decreased by 70% compared to before renovation. The resulting reduction factors for radioactive cesium concentration of harvested forage were in the range of 1.3 - 2.7 compared with no renovation. On stony grasslands, the working efficiency may be significantly lower due to stones becoming wedged between the blades. In practical grassland renovation of four steep grasslands, the average working efficiency was 4.05 hr/10a.\n","subitem_description_type":"Abstract"},{"subitem_description":"　放射性セシウムに汚染された牧草地においては除染作業を兼ねた草地更新が進められた．しかし，機械作業が困難な傾斜地を永年草地として利用している場所では，作業機が転倒する危険性があるため，草地更新は困難であった．そこで，15 ～ 30°の急傾斜草地の草地更新作業を低重心の無線で操作する傾斜地用トラクタ（以下，「無線傾斜地トラクタ」という）で行う技術を開発した．無線傾斜地トラクタは河川敷の草刈りに利用されており，最大100 m 離れて操作でき，無線が届かないと自動停止する．装着できるロータリを松山株式会社と共同開発したことにより，製品化されているフレールモーア，散布性能を確認したブロードキャスタ，試作したローラと組み合わせて，前植生の刈払い，施肥，耕うん，播種，鎮圧の一連の草地更新作業が遠隔作業で安全に実施できるようになった．開発したロータリは地表の凹凸の追従性が高く，丁寧に耕うんができ，石礫に当たっても耕うん爪が折れにくい特徴を有する．実証試験において，草地の空間線量率は除染前の約70% に，翌年の牧草の放射性セシウム濃度は未除染の場合と比べて37 ～ 78% に低減した．\nその一方で，石礫が多い草地では，ロータリに石がつまることにより，作業効率が著しく低下する場合があった．4 箇所の実規模草地での一連の草地更新の作業時間は，10a 当たり4.05 時間であった．この作業体系は草地除染の事業にも採用され，栃木県，福島県，宮城県，岩手県の公共牧場などの急傾斜草地の除染に活用され，草地の利用再開に貢献した．全国には急傾斜が原因で十分な草地管理が行えず植生悪化や生産性低下に陥っている草地があり，この作業体系はこれらの草地の草地管理にも利用できる．","subitem_description_type":"Abstract"}]},"item_7_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"1章: 農耕地の除染と農業用水の放射性物質への対応 /総説\nChapter1: Decontamination of arable land and measures for radioactive substances in irrigation water /Review","subitem_description_type":"Other"}]},"item_7_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.24514/00006648","subitem_identifier_reg_type":"JaLC"}]},"item_7_link_24":{"attribute_name":"関連リンク","attribute_value_mlt":[{"subitem_link_text":"J-Stage https://doi.org/10.34503/naroj.2021.8_35","subitem_link_url":"https://doi.org/10.34503/naroj.2021.8_35"}]},"item_7_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"国立研究開発法人 農業・食品産業技術総合研究機構"},{"subitem_publisher":"National Agriculture and Food Research Organization, Japan (NARO)"}]},"item_7_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.34503/naroj.2021.8_35","subitem_relation_type_select":"DOI"}}]},"item_7_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"本文はJ-Stageよりご利用いただけます。"}]},{"subitem_relation_name":[{"subitem_relation_name_text":"This article full-text PDF is available at J-Stage."}]}]},"item_7_relation_18":{"attribute_name":"他の資源との関係","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"2022.2 J-Stageへ移管しました"}]},{"subitem_relation_name":[{"subitem_relation_name_text":"We changed the journal platform to J-Stage.　2022.2 -"}]}]},"item_7_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2434-9909","subitem_source_identifier_type":"ISSN"}]},"item_7_version_type_20":{"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":"栂村, 恭子"},{"creatorName":"トガムラ, ヤスコ","creatorNameLang":"ja-Kana"},{"creatorName":"TOGAMURA, Yasuko","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"2067","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"00355108","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=00355108"},{"nameIdentifier":"naro-ytoga","nameIdentifierScheme":"researchmap","nameIdentifierURI":"http://researchmap.jp/naro-ytoga"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_login","displaytype":"detail","filename":"10.24514-00006648_DOI_moved.pdf","filesize":[{"value":"208.3 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"10.24514-00006648_DOI_moved","url":"https://repository.naro.go.jp/record/6793/files/10.24514-00006648_DOI_moved.pdf"},"version_id":"1ea44c32-14af-48ef-9b30-f975494c9ce4"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"急傾斜草地","subitem_subject_scheme":"Other"},{"subitem_subject":"除染","subitem_subject_scheme":"Other"},{"subitem_subject":"草地更新","subitem_subject_scheme":"Other"},{"subitem_subject":"無線傾斜地トラクタ","subitem_subject_scheme":"Other"},{"subitem_subject":"radioactive caesium","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"radio-controlled tractor crawler tractor","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"remediation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"steep grassland","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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"無線操作による急傾斜草地の除染技術開発","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"無線操作による急傾斜草地の除染技術開発"},{"subitem_title":"Remediation of steep grasslands using a radio-controlled crawler tractor","subitem_title_language":"en"}]},"item_type_id":"7","owner":"11","path":["555"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-11-22"},"publish_date":"2021-11-22","publish_status":"0","recid":"6793","relation_version_is_last":true,"title":["無線操作による急傾斜草地の除染技術開発"],"weko_creator_id":"11","weko_shared_id":-1},"updated":"2023-12-19T03:27:31.512565+00:00"}