{"created":"2023-05-15T13:38:49.041415+00:00","id":2849,"links":{},"metadata":{"_buckets":{"deposit":"1eabb8e6-f175-44a2-892d-4bfc3dcc8677"},"_deposit":{"created_by":11,"id":"2849","owners":[11],"pid":{"revision_id":0,"type":"depid","value":"2849"},"status":"published"},"_oai":{"id":"oai:repository.naro.go.jp:00002849","sets":["2:581:108","87:660:49"]},"author_link":["6998","485"],"item_10001_alternative_title_1":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Nitrous oxide (N2O) |Indirect N2O emission factor (EF5g) |Intensive precipitation| Nitrate| Leaching| Drainage ditch"}]},"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018-11","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"A","bibliographicPageEnd":"491","bibliographicPageStart":"480","bibliographicVolumeNumber":"242","bibliographic_titles":[{"bibliographic_title":"Environmental Pollution"},{"bibliographic_title":"Environmental Pollution","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Nitrogen (N)-enriched leaching water may act as a source of indirect N2O emission when it is discharged to agricultural drainage ditches. In this study, indirect N2O emissions from an agricultural drainage ditch mainly receiving interflow water were measured using the static chamber-gas chromatography technique during 2012–2015 in the central Sichuan Basin in southwestern China. We found the drainage ditch was a source of indirect N2O emissions contributing an inter-annual mean flux of 6.56 ± 1.12 μg N m−2 h−1 and a mean indirect N2O emission factor (EF5g) value of 0.03 ± 0.003%. The mean EF5g value from literature review was 0.51%, which was higher than the default EF5g value (0.25%) proposed by the Intergovernmental Panel on Climate Change (IPCC) in 2006. Our study demonstrated that, more in situ observations of N2O emissions as regards N leaching are required, to account for the large variation in EF5g values and to improve the accuracy and confidence of the default EF5g value. Indirect N2O emissions varied with season, higher emissions occurred in summer and autumn. These seasonal variations were related to drainage water NO3−-N concentration, temperature, and precipitation. Our results showed that intensive precipitation increased NO3−-N concentrations and N2O emissions, and when combined with warmer water temperatures, these may have increased the denitrification rate that led to the higher summer and autumn N2O emissions in the studied agricultural drainage ","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.envpol.2018.07.018","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"SC10201901040001"}]},{"subitem_relation_name":[{"subitem_relation_name_text":"NARO成果DBa"}]},{"subitem_relation_name":[{"subitem_relation_name_text":"author manuscript"}]},{"subitem_relation_name":[{"subitem_relation_name_text":"This is not the published version. Please cite only the published version. "}]},{"subitem_relation_name":[{"subitem_relation_name_text":"この論文は出版社版ではありません。引用の際には出版社版をご利用ください。"}]},{"subitem_relation_name":[{"subitem_relation_name_text":"Green open Access /This journal has an embargo period of 24 months."}]}]},"item_10001_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Environmental Pollution"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://dx.doi.org/10.1016/j.envpol.2018.07.018","subitem_relation_type_select":"DOI"}}]},"item_10001_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"The Author(s) "},{"subitem_rights":"2018 Published by Elsevier Ltd."}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0269-7491","subitem_source_identifier_type":"ISSN"}]},"item_10001_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"TIAN, Linlin"},{"creatorName":"TIAN, Linlin","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"6998","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"秋山, 博子"},{"creatorName":"アキヤマ, ヒロコ","creatorNameLang":"ja-Kana"},{"creatorName":"AKIYAMA, Hiroko","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"485","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"00354001","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=00354001"},{"nameIdentifier":"HirokoAkiyama","nameIdentifierScheme":"researchmap","nameIdentifierURI":"http://researchmap.jp/HirokoAkiyama"},{"nameIdentifier":"0000-0001-8821-5185","nameIdentifierScheme":"ORCID","nameIdentifierURI":"http://orcid.org/0000-0001-8821-5185"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-12-01"}],"displaytype":"detail","filename":"SC10201901040001_PostPrint-a.pdf","filesize":[{"value":"1.0 MB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"SC10201901040001_PostPrint","url":"https://repository.naro.go.jp/record/2849/files/SC10201901040001_PostPrint-a.pdf"},"version_id":"276beaf6-7cbe-471e-a774-0b56cd876d92"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Nitrous oxide (N2O)","subitem_subject_scheme":"Other"},{"subitem_subject":"Indirect N2O emission factor (EF5g)","subitem_subject_scheme":"Other"},{"subitem_subject":"Intensive precipitation","subitem_subject_scheme":"Other"},{"subitem_subject":"Nitrate","subitem_subject_scheme":"Other"},{"subitem_subject":"Leaching","subitem_subject_scheme":"Other"},{"subitem_subject":"Drainage ditch","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"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":"Indirect N2O emissions with seasonal variations from an agricultural drainage ditch mainly receiving interflow water","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Indirect N2O emissions with seasonal variations from an agricultural drainage ditch mainly receiving interflow water"},{"subitem_title":"Indirect N2O emissions with seasonal variations from an agricultural drainage ditch mainly receiving interflow water","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"11","path":["49","108"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-10-04"},"publish_date":"2019-10-04","publish_status":"0","recid":"2849","relation_version_is_last":true,"title":["Indirect N2O emissions with seasonal variations from an agricultural drainage ditch mainly receiving interflow water"],"weko_creator_id":"11","weko_shared_id":-1},"updated":"2023-05-15T16:03:50.205145+00:00"}