{"created":"2023-07-25T09:05:02.102068+00:00","id":3001,"links":{},"metadata":{"_buckets":{"deposit":"2079907f-bf62-4807-98e0-c44c75734a97"},"_deposit":{"created_by":3,"id":"3001","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"3001"},"status":"published"},"_oai":{"id":"oai:toyama.repo.nii.ac.jp:00003001","sets":["496:497:498:499"]},"author_link":["10023","10025","10022","10026","10024"],"item_2_alternative_title_19":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Distribution of C_3 and C_4 Plants and Changes in Plant and Soil Carbon Isotope Ratios with Altitude in the Kirigamine Grassland, Japan"}]},"item_2_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2004-08","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"254","bibliographicPageStart":"243","bibliographicVolumeNumber":"50","bibliographic_titles":[{"bibliographic_title":"日本草地学会誌:Journal of Japanese Society of Grassland Science"}]}]},"item_2_description_15":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_2_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The aim of this study was to clarify how temperature underlines the proportion of C_3 and C_4 grasses along an alitudinal gradient in the Kirigamine grassland of central Japan. We investigated the altitudinal patterns of C_3 and C_4 plants in the Kirigamine grassland (1,500 to 1,920m a. s. l.), and analyzed its relationship to temperature, topography and soil carbon and nitrogen contents based on field survey data of 1992 to 1995. The C_4-grass percentage (measured as % of total grass coverage or biomass) decreased and the C_3-grass percentage increased with altitude, indicating the existence of a transition between C_3 and C_4 grasses in the grassland. Seasonal changes in the proportion of C_4 and C_3 grasses of the C_3-C_4 transition indicated that there was a shift of productive activities from C_3 to C_4 grasses with increasing temperature. The significant correlation between percentage of C_4 and C_3 grasses and temperature-related factors suggests that temperature is of primary importance in determining the proportions of C_4 and C_3 grasses along the altitudinal gradient. Precipitation, soil C and N contents, and topographical factors (slope inclination and aspect) showed less influence on the transition in the grassland. On the other hand, the C_3-C_4 balance point (C_3 and C_4 grasses each constituting 50% coverage) in the Kirigamine grassland had a mean August (the warmest month) minimum temperature of 13℃, which was in rough agreement with the balance point in other temperate regions but higher than that of tropical regions. This suggests that C_4 plants require warmer summer for distribution to higher latitudes. We measured carbon isotope ratios (δ^<13>C) of vegetation and found that the values decreased with increasing altitude, and indicating the transition from C_4 to C_3 grasses with increasing altitude as well. Moreover, we clarify the changes in altitudinal pattern of C_3 and C_4 plants in past vegetation of the Kirgamine grassland, based on the changes in carbon isotope ratios of present vegetation and soil organic matter with increasing altitude. The δ^<13>C value of soil organic carbon at the 1660-m site was -18.2‰, while the present vegetation δ^<13>C value was -18.6‰, suggesting a similar C_3/C_4 ratio in the past (recorded in soil δ^<13>C value) as at the present at this site. However, at the 1715-m and 1830-m sites, the soil δ^<13>C values were -19.5‰ and -21.2‰, whereas the present vegetation δ^<13>C values were -22.3‰ and -26.1‰, respectively. These results strongly suggest that a greater proportion of C_4 plants occupied the communities at the higher altitudes in the past.\n 本研究はC_3とC_4イネ科草本の構成割合の標高に伴う分布と温度要因との対応関係を明らかにすることを目的とし,霧ケ峰草原(1,500～1,920m)におけるC_3とC_4植物の標高分布パターンと温度・地形・土壌炭素および窒素含有量など環境要因との関係解析を行った。その結果,構成割合は標高が高くなるにつれてC_4優占からC_3優占へと変化することが明らかとなった。さらに,C_3とC_4植物の移行帯では,春から夏にかけてC_3優占からC_4優占に変化することから,温度上昇にともなって構成割合が変化することも明らかになった。そして標高に伴う構成割合の変化と環境要因との関係解析の結果,温度関連因子と有意な相関関係が得られたが,その他の環境要因については有意な相関が得られなかった。このことからC_3とC_4イネ科草本の構成割合の標高に伴う分布の違いは温度が第一の要因であると考えられる。また,標高に伴う現存植生の炭素安定同位体比(δ^<13>C)および土壌炭素安定同位体比の変化から霧ケ峰草原における過去のC_3とC_4植物の標高に伴う構成割合の変化は現在と異なり,C_4植物が現在よりも高標高まで分布していたことが示唆された。　　","subitem_description_type":"Abstract"}]},"item_2_description_40":{"attribute_name":"資源タイプ(DSpace)","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_2_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"10023","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"9000003189106","nameIdentifierScheme":"CiNii ID","nameIdentifierURI":"http://ci.nii.ac.jp/nrid/9000003189106"}],"names":[{"name":"Nishimura, Noboru"}]}]},"item_2_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"日本草地学会"},{"subitem_publisher":"日本草地学会"}]},"item_2_rights_13":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"rights: 本文データは日本草地学会の許諾に基づき、CiNiiから複製したものである"}]},"item_2_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00194108","subitem_source_identifier_type":"NCID"}]},"item_2_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"04475933","subitem_source_identifier_type":"ISSN"}]},"item_2_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":"莫,  文紅"}],"nameIdentifiers":[{"nameIdentifier":"10022","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"西村,  格"}],"nameIdentifiers":[{"nameIdentifier":"10023","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"9000003189106","nameIdentifierScheme":"CiNii ID","nameIdentifierURI":"http://ci.nii.ac.jp/nrid/9000003189106"}]},{"creatorNames":[{"creatorName":"曽我,  有紀子"}],"nameIdentifiers":[{"nameIdentifier":"10024","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山田,  恭子"}],"nameIdentifiers":[{"nameIdentifier":"10025","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"米山,  忠克"}],"nameIdentifiers":[{"nameIdentifier":"10026","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":"2016-02-15"}],"displaytype":"detail","filename":"日本草地学会誌04-243.pdf","filesize":[{"value":"1.4 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"日本草地学会誌04-243.pdf","url":"https://toyama.repo.nii.ac.jp/record/3001/files/日本草地学会誌04-243.pdf"},"version_id":"67b3b9e9-e207-4758-8fde-146aeefbbad4"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"温度","subitem_subject_scheme":"Other"},{"subitem_subject":"過去植生","subitem_subject_scheme":"Other"},{"subitem_subject":"霧ケ峰草原","subitem_subject_scheme":"Other"},{"subitem_subject":"C_3とC_4植物","subitem_subject_scheme":"Other"},{"subitem_subject":"炭素安定同位体比","subitem_subject_scheme":"Other"},{"subitem_subject":"標高分布パターン","subitem_subject_scheme":"Other"},{"subitem_subject":"Altitudinal pattern","subitem_subject_scheme":"Other"},{"subitem_subject":"C_3 and C_4 plants","subitem_subject_scheme":"Other"},{"subitem_subject":"Carbon isotope ratio","subitem_subject_scheme":"Other"},{"subitem_subject":"Kirigamine grassland","subitem_subject_scheme":"Other"},{"subitem_subject":"Past vegetation","subitem_subject_scheme":"Other"},{"subitem_subject":"Temperature","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":"霧ケ峰草原におけるC_3とC_4植物の分布および標高に伴う植物と土壌の炭素安定同位体比の変化.","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"霧ケ峰草原におけるC_3とC_4植物の分布および標高に伴う植物と土壌の炭素安定同位体比の変化."}]},"item_type_id":"2","owner":"3","path":["499"],"pubdate":{"attribute_name":"公開日","attribute_value":"2008-02-07"},"publish_date":"2008-02-07","publish_status":"0","recid":"3001","relation_version_is_last":true,"title":["霧ケ峰草原におけるC_3とC_4植物の分布および標高に伴う植物と土壌の炭素安定同位体比の変化."],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-07-25T12:18:49.856829+00:00"}