{"created":"2023-07-25T08:10:28.206968+00:00","id":10377,"links":{},"metadata":{"_buckets":{"deposit":"38215056-a1e9-4362-8a22-d9bce7e15aa9"},"_deposit":{"created_by":18,"id":"10377","owners":[18],"pid":{"revision_id":0,"type":"depid","value":"10377"},"status":"published"},"_oai":{"id":"oai:ir.kagoshima-u.ac.jp:00010377","sets":["228:265:5441","43:194:6019"]},"author_link":["121440","121441","121442"],"item_7_biblio_info_5":{"attribute_name":"収録雑誌名","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2006-12-01","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"36","bibliographicPageStart":"29","bibliographicVolumeNumber":"34","bibliographic_titles":[{"bibliographic_title":"鹿児島大学農学部演習林研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Research bulletin of the Kagoshima University forests","bibliographic_titleLang":"en"}]}]},"item_7_date_6":{"attribute_name":"作成日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2006-12-01","subitem_date_issued_type":"Issued"}]},"item_7_description_4":{"attribute_name":"要約(Abstract)","attribute_value_mlt":[{"subitem_description":"The flanks of Mount Sakurajima are widely and thickly covered with volcanic ash after a long period of volcanic activity. As a result，much sediment was generated from the flanks and flowed out due to debris flows and mud flows occurred in the rivers located around Mount Sakurajima. In this paper，we investigated the gully erosion process and the temporal change in sediment yield from gully erosion based on field surveys and interpretation of aerial photographs，as well as the effects of the temporal change in volcanic activity on sediment yield from gully erosion in the Saido River basin in Mount Sakurajima. The results are as follows:   (1) The gullies were extensively distributed on the slopes covered with volcanic ash in the Saido River basin. The density and scale of the gullies，as well as the proportion of gully erosion area in the basin area of the Saido River basin became considerably larger over time. The proportion of gully erosion area in the basin area reached about 50 % in 2000.   (2) The average annual sediment yield from gully erosion，average specific annual sediment yield from gully erosion， and average annual sediment yield from gully erosion divided by average annual rainfall reached a peak between 1984 and 1991，and subsequently declined with the temporal decrease in volcanic ash. The average annual sediment yield and average specific annual sediment yield between 1984 and 1991 were about 61,500 ㎥ and about 43,000 ㎥/k㎡，the largest annual values for the period of 1978 to 2000.","subitem_description_language":"en","subitem_description_type":"Other"},{"subitem_description":"桜島の山腹斜面は，長期にわたる噴火活動の影響を受けて，火山灰に広く，分厚く覆われている。この結果，桜島の山腹斜面からは侵食によって多量の土砂が生産され，土石流・泥流によって多量の土砂が流出している。本論では，桜島の北側に位置する西道川流域を対象として，現地調査および空中写真判読の結果に基づき，ガリー侵食過程およびガリー侵食による生産土砂量の経年変化について検討した。さらに，噴火活動の経年変化がガリー侵食による生産土砂量のそれに及ぼす影響についても検討した。得られた結果は以下の通りである。　(1) 西道川流域の火山灰に厚く被覆された斜面では，広範囲にガリーが刻まれていた。ガリーの密度および規模だけでなく，流域面積に占めるガリー面積の割合も経年的に非常に大きな増加を示した。流域面積に占めるガリ一面積の割合は，2000年時点、で約50%に達した。　(2) ガリー侵食による年平均での生産土砂量および比生産土砂量，さらに雨量1mmあたりのガリー侵食による年平均での生産土砂量は，1984～1991年の期間に最大となり，その後噴火活動の衰退に伴って経年的に減少した。本論で解析対象とした1978～2000年の期間において，生産土砂量の最大値を示した1984～1991年の期間のガリー侵食による年平均での生産土砂量および比生産土砂量は，それぞれ約61,500㎥，約43,000㎥/k㎡であった。","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_7_publisher_23":{"attribute_name":"公開者・出版者","attribute_value_mlt":[{"subitem_publisher":"鹿児島大学","subitem_publisher_language":"ja"},{"subitem_publisher":"Kagoshima University","subitem_publisher_language":"en"}]},"item_7_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13449362","subitem_source_identifier_type":"PISSN"}]},"item_7_source_id_9":{"attribute_name":"NII書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN10592752","subitem_source_identifier_type":"NCID"}]},"item_7_subject_15":{"attribute_name":"NDC","attribute_value_mlt":[{"subitem_subject":"094","subitem_subject_scheme":"NDC"}]},"item_7_version_type_14":{"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":"TERAMOTO, Yukiyoshi","creatorNameLang":"en"},{"creatorName":"寺本, 行芳","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"121440","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"SHIMOKAWA, Etsuro","creatorNameLang":"en"},{"creatorName":"下川, 悦郎","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"121441","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"JITOUSONO, Takashi","creatorNameLang":"en"},{"creatorName":"地頭薗, 隆","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"121442","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":"2016-10-28"}],"displaytype":"detail","filename":"4_teramoto4.pdf","filesize":[{"value":"902.0 kB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"label":"4_teramoto4.pdf","objectType":"fulltext","url":"https://ir.kagoshima-u.ac.jp/record/10377/files/4_teramoto4.pdf"},"version_id":"fc2d834e-9078-46e7-8b60-8bd647de9a8e"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"桜島","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"西道川流域","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"噴火活動","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"ガリー侵食過程","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"ガリー侵食による生産土砂量","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"Mount Sakurajima","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Saido River basin","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"volcanic activity","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"gully erosion process","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"sediment yield from gully erosion","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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Temporal change in sediment yield from gully erosion on the flank of the Saido River basin on Mount Sakurajima","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Temporal change in sediment yield from gully erosion on the flank of the Saido River basin on Mount Sakurajima","subitem_title_language":"en"},{"subitem_title":"桜島の西道川流域の火山灰被覆斜面におけるガリー侵食による生産土砂量の経年変化","subitem_title_language":"ja"}]},"item_type_id":"7","owner":"18","path":["5441","6019"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2012-03-16"},"publish_date":"2012-03-16","publish_status":"0","recid":"10377","relation_version_is_last":true,"title":["Temporal change in sediment yield from gully erosion on the flank of the Saido River basin on Mount Sakurajima"],"weko_creator_id":"18","weko_shared_id":-1},"updated":"2024-05-02T07:46:36.460830+00:00"}