{"created":"2023-07-25T11:06:34.530725+00:00","id":10022,"links":{},"metadata":{"_buckets":{"deposit":"bb570d4a-933c-48f7-a94e-69d1b46c10fa"},"_deposit":{"created_by":17,"id":"10022","owners":[17],"pid":{"revision_id":0,"type":"depid","value":"10022"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00010022","sets":[]},"author_link":["18032","17867","18033","17869","18031","17868"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2014-09","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"231","bibliographicPageStart":"218","bibliographicVolumeNumber":"8","bibliographic_titles":[{"bibliographic_title":"Polar science"},{"bibliographic_title":"Polar science","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"To investigate the dynamics and environmental drivers of CO2 flux through the winter snowpack in a dwarf bamboo ecosystem (Hokkaido, northeast Japan), we constructed an automated sampling system to measured CO2 concentrations at five different levels in the snowpack, from the base to the upper snow surface. Using a gas diffusion approach, we estimated an average apparent soil CO2 flux of 0.26 μmol m-2 s-1 during the snow season (December-April); temporally, the CO2 flux increased until mid-snow season, but showed no clear trend thereafter; late-season snow-melting events resulted in rapid decreases in apparent CO2 flux values. Air temperature and subnivean CO2 flux exhibited a positive linear relationship. After eliminating the effects of wind pumping, we estimated the actual soil CO2 flux (0.41 μmol m-2 s-1) to be 54% larger than the apparent flux. This study provides new constraints on snow-season carbon emissions in a dwarf bamboo ecosystem in northeast Asia.","subitem_description_type":"Abstract"}]},"item_10001_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"ササが優先している北海道利尻島（日本の北東部）の観測点で、冬期に積雪を通じて放出されるCO2フラックスの動態とその支配要因を研究するため、積雪内のCO2濃度を自動的に測定するシステムを設置した。積雪内のCO2濃度は、地表面から積雪表面までの五つの高さで計測した。ガス拡散法を用いて、積雪期（12月～4月）の平均的な見かけの土壌CO2フラックスは0.26 μmol m-2 s-1であると評価された。CO2フラックスは、積雪期の中ごろ一時的に増加したが、その後は明確な傾向を示さなかった。冬の終わりの融雪イベントは、見かけ上のCO2フラックスの急激な減少を示した。また、みかけの土壌 CO2フラックスは気温と正の直線関係を示した。風ポンピングの影響を取り除くことにより、見かけのフラックスよりも54％大きい、実際の土壌CO2フラックス（0.41 μmol m-2 s-1）が推定された。この研究は、北東アジア域のササが主要な要素である生態系からの、冬季積雪期の炭素排出に関する新たな制約を提供している。 ","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"国立極地研究所"}]},"item_10001_relation_12":{"attribute_name":"論文ID（NAID）","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"110009821618","subitem_relation_type_select":"NAID"}}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"10.1016/j.polar.2014.04.003"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1016/j.polar.2014.04.003","subitem_relation_type_select":"DOI"}}]},"item_10001_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12240481","subitem_source_identifier_type":"NCID"}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"18739652","subitem_source_identifier_type":"ISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Zhua, Chunmao"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakayama, Momoko"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Inoue, Hisayuki Yoshikawa"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Zhua, Chunmao","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakayama, Momoko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Inoue, Hisayuki Yoshikawa","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Carbon_cycle","subitem_subject_scheme":"Other"},{"subitem_subject":"Snowpack","subitem_subject_scheme":"Other"},{"subitem_subject":"CO2_flux","subitem_subject_scheme":"Other"},{"subitem_subject":"Concentration-gradient_approach","subitem_subject_scheme":"Other"},{"subitem_subject":"Wind_pumping","subitem_subject_scheme":"Other"},{"subitem_subject":"Carbon_cycle","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Snowpack","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"CO2_flux","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Concentration-gradient_approach","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Wind_pumping","subitem_subject_language":"en","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":"Continuous measurement of CO2 flux through the snowpack in a dwarf bamboo ecosystem on Rishiri Island, Hokkaido, Japan","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Continuous measurement of CO2 flux through the snowpack in a dwarf bamboo ecosystem on Rishiri Island, Hokkaido, Japan"},{"subitem_title":"Continuous measurement of CO2 flux through the snowpack in a dwarf bamboo ecosystem on Rishiri Island, Hokkaido, Japan","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"17","path":["1332"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-10-09"},"publish_date":"2014-10-09","publish_status":"0","recid":"10022","relation_version_is_last":true,"title":["Continuous measurement of CO2 flux through the snowpack in a dwarf bamboo ecosystem on Rishiri Island, Hokkaido, Japan"],"weko_creator_id":"17","weko_shared_id":-1},"updated":"2023-07-25T16:22:17.322763+00:00"}