{"created":"2025-05-28T01:51:48.264012+00:00","id":2001311,"links":{},"metadata":{"_buckets":{"deposit":"6e6ff60d-43e4-470a-b059-4d2a9850ebbb"},"_deposit":{"created_by":121,"id":"2001311","owner":"121","owners":[121],"pid":{"revision_id":0,"type":"depid","value":"2001311"},"status":"published"},"_oai":{"id":"oai:repository.naro.go.jp:02001311","sets":["1706970004180:1","87:661:1727312983899:1727312636636:1748331365361"]},"author_link":["11282","11297","1884","1839","11307"],"item_12_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2008-03-31","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"138","bibliographicPageStart":"127","bibliographicVolumeNumber":"207","bibliographic_titles":[{"bibliographic_title":"農村工学研究所技報","bibliographic_titleLang":"ja"},{"bibliographic_title":"Technical report of the National Institute for Rural Engineering","bibliographic_titleLang":"en"}]}]},"item_12_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Groundwater is the only water source, including drinking water, in Miyako Island, and contamination of groundwater by nitrate-N has become a serious problem in recent years. Agriculture is the island’s key industry and agricultural activities are believed to have contributed to an increase in the concentration of nitrate-N of groundwater. For this reason, the development of the method for estimating the amounts of leached nitrate-N caused from agricultural activities is useful for proposing appropriate farming managements and the conservation of groundwater quality. In this study, the amounts of leached nitrate-N were estimated by the DNDC model using the cultivation data of each fi eld within the same groundwater basin. The estimated the amounts of leached nitrate-N related to agricultural activities were visualized by GIS over the entire groundwater basin. Compared to year 1977, the amounts of leached nitrate-N in the groundwater basin signifi cantly decreased in year 1994 and 2005, due to changes in the amounts of applied fertilizer and the types of crops. The concentration of nitrate-N of groundwater in the same groundwater basin also decreased as the amounts of leached nitrate-N decreased. Our results indicated that the estimation method shown here was able to capture the changes in the amounts of leached nitrate-N, at least for these 3 years, attributed to the changes in farming managements. The estimation method might, therefore, help to establish appropriate farming managements that contribute to the conservation of groundwater quality in the island.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_12_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.24514/0002001311","subitem_identifier_reg_type":"JaLC"}]},"item_12_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"独立行政法人農業食品産業技術総合研究機構農村工学研究所","subitem_publisher_language":"ja"},{"subitem_publisher":"National Agriculture and Food Research Organization, National Institute for Rural Engineering","subitem_publisher_language":"en"}]},"item_12_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-3289","subitem_source_identifier_type":"PISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"藤家, 里江","creatorNameLang":"ja"},{"creatorName":"フジイエ, リエ","creatorNameLang":"ja-Kana"},{"creatorName":"FUJIIE, Rie","creatorNameLang":"en"}],"familyNames":[{"familyName":"藤家","familyNameLang":"ja"},{"familyName":"フジイエ","familyNameLang":"ja-Kana"},{"familyName":"FUJIIE","familyNameLang":"en"}],"givenNames":[{"givenName":"里江","givenNameLang":"ja"},{"givenName":"リエ","givenNameLang":"ja-Kana"},{"givenName":"Rie","givenNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"11282","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中川, 陽子","creatorNameLang":"ja"},{"creatorName":"ナカガワ, ヨウコ","creatorNameLang":"ja-Kana"},{"creatorName":"NAKAGAWA, Yoko","creatorNameLang":"en"}],"familyNames":[{"familyName":"中川","familyNameLang":"ja"},{"familyName":"ナカガワ","familyNameLang":"ja-Kana"},{"familyName":"NAKAGAWA","familyNameLang":"en"}],"givenNames":[{"givenName":"陽子","givenNameLang":"ja"},{"givenName":"ヨウコ","givenNameLang":"ja-Kana"},{"givenName":"Yoko","givenNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"11297","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"SHIMA, Takeo","creatorNameLang":"en"},{"creatorName":"島, 武男","creatorNameLang":"ja"},{"creatorName":"シマ, タケオ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"SHIMA","familyNameLang":"en"},{"familyName":"島","familyNameLang":"ja"},{"familyName":"シマ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Takeo","givenNameLang":"en"},{"givenName":"武男","givenNameLang":"ja"},{"givenName":"タケオ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"1884","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"20414427","nameIdentifierScheme":"e-Rad_Researcher","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=20414427"},{"nameIdentifier":"t1125s","nameIdentifierScheme":"researchmap","nameIdentifierURI":"http://researchmap.jp/t1125s"}]},{"creatorNames":[{"creatorName":"SHIONO, Takahiro","creatorNameLang":"en"},{"creatorName":"塩野, 隆弘","creatorNameLang":"ja"},{"creatorName":"シオノ, タカヒロ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"SHIONO","familyNameLang":"en"},{"familyName":"塩野","familyNameLang":"ja"},{"familyName":"シオノ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Takahiro","givenNameLang":"en"},{"givenName":"隆弘","givenNameLang":"ja"},{"givenName":"タカヒロ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"1839","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"30343982","nameIdentifierScheme":"e-Rad_Researcher","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=30343982"},{"nameIdentifier":"siono","nameIdentifierScheme":"researchmap","nameIdentifierURI":"http://researchmap.jp/siono"}]},{"creatorNames":[{"creatorName":"凌, 祥之","creatorNameLang":"ja"},{"creatorName":"シノギ, ヨシユキ","creatorNameLang":"ja-Kana"},{"creatorName":"SHINOGI, Yoshiyuki","creatorNameLang":"en"}],"familyNames":[{"familyName":"凌","familyNameLang":"ja"},{"familyName":"シノギ","familyNameLang":"ja-Kana"},{"familyName":"SHINOGI","familyNameLang":"en"}],"givenNames":[{"givenName":"祥之","givenNameLang":"ja"},{"givenName":"ヨシユキ","givenNameLang":"ja-Kana"},{"givenName":"Yoshiyuki","givenNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"11307","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":"2025-05-30"}],"displaytype":"preview","filename":"TRNIRE207_p127-138.pdf","filesize":[{"value":"1.4 MB"}],"format":"application/pdf","license_note":"(c) 国立研究開発法人 農業・食品産業技術総合研究機構\nNational Agriculture and Food Research Organization, Japan","licensetype":"license_note","mimetype":"application/pdf","url":{"url":"https://repository.naro.go.jp/record/2001311/files/TRNIRE207_p127-138.pdf"},"version_id":"d30f7c24-e4e4-4591-b101-8dd7552dc268"}]},"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":"article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"宮古島地下水流域レベルの硝酸態窒素溶脱量の推定","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"宮古島地下水流域レベルの硝酸態窒素溶脱量の推定","subitem_title_language":"ja"},{"subitem_title":"Estimation of leached nitrate-nitrogen in groundwater basin, Miyako Island.","subitem_title_language":"en"}]},"item_type_id":"12","owner":"121","path":["1","1748331365361"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-05-30"},"publish_date":"2025-05-30","publish_status":"0","recid":"2001311","relation_version_is_last":true,"title":["宮古島地下水流域レベルの硝酸態窒素溶脱量の推定"],"weko_creator_id":"121","weko_shared_id":-1},"updated":"2025-05-29T04:16:12.417126+00:00"}