{"created":"2023-07-25T08:04:54.408981+00:00","id":3205,"links":{},"metadata":{"_buckets":{"deposit":"360e2002-ef6b-4902-a2e6-ea68f715635a"},"_deposit":{"created_by":18,"id":"3205","owners":[18],"pid":{"revision_id":0,"type":"depid","value":"3205"},"status":"published"},"_oai":{"id":"oai:ir.kagoshima-u.ac.jp:00003205","sets":["228:260:5592","31:32:33:34"]},"author_link":["108254","108255"],"item_6_biblio_info_5":{"attribute_name":"収録雑誌名","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1996-01-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"20","bibliographicPageStart":"1","bibliographicVolumeNumber":"17","bibliographic_titles":[{"bibliographic_title":"南太平洋研究","bibliographic_titleLang":"ja"},{"bibliographic_title":"South Pacific Study","bibliographic_titleLang":"en"}]}]},"item_6_date_6":{"attribute_name":"作成日","attribute_value_mlt":[{"subitem_date_issued_datetime":"1996-01-01","subitem_date_issued_type":"Issued"}]},"item_6_description_4":{"attribute_name":"要約(Abstract)","attribute_value_mlt":[{"subitem_description":"Changes in the physical and chemical properties of the surface layers of soil of a slash-and-burn swidden\n(garden) in a tropical and ever-humid climate region in northwest Malaita Island, Solomon Islands, were investigated.\nSoil samples were obtained from the same site nearly spanning the entire swidden cycle and from an almost\nadjacent long fallow forest. The fallow period in the swidden cycle was slightly more than ten years. The soil there\nwas found to be acidic. The changes in physical properties suggest that slight soil compaction of the surface layers\noccurred during the fallow, and that the soil became softer, and more permeable with increasing fallow length. The\nchanges in the content of organic carbon seem to parallel this change. Both organic carbon and total nitrogen in\nthe topsoil had the lowest value in the middle of the fallow period. The surface layers accumulated much organic\nmatter during the long fallow period. The levels of available phosphorus, exchangeable calcium, magnesium,\npotassium, and sodium, base saturation percentage and pH of the topsoil were lowest during the fallow period. On\nthe other hand, effective cation exchange capacity was high in the middle of the fallow period owing to a high\nvalue of exchange acidity. Exchangeable calcium was noticeably abundant in both the topsoil and the 15 20cm soil\nlayer in the long fallow forest. After burning the plant debris, no rise of pH value measured in de-ionized water\nwas recognized.\nFrom the preceding results, it can be concluded that some properties of the topsoil in fallows far less than ten\nyears after garden abandonment are less favorable for swiddening even when the beneficial effects of heating and\nadding ash are taken into account. Furthermore, the present investigation suggests that the ecological characteristics\nof swiddening in an ever-humid region are substantially different from those in a region with humid and\ndistinctly dry seasons.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_6_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_6_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"09160752","subitem_source_identifier_type":"PISSN"}]},"item_6_source_id_9":{"attribute_name":"NII書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN10088628","subitem_source_identifier_type":"NCID"}]},"item_6_subject_15":{"attribute_name":"NDC","attribute_value_mlt":[{"subitem_subject":"613","subitem_subject_scheme":"NDC"}]},"item_6_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":"Nakano, Kazutaka","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"108254","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Miyauchi, Nobufumi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"108255","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":"2016-10-27"}],"displaytype":"detail","filename":"nakano.pdf","filesize":[{"value":"136.7 kB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"label":"nakano.pdf","objectType":"fulltext","url":"https://ir.kagoshima-u.ac.jp/record/3205/files/nakano.pdf"},"version_id":"d52a5d2b-9fb1-46a3-91f8-7085aca8c74e"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Soil properties","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Swidden cycle","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Malaita Island","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Solomon Islands","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":"Changes in Physical and Chemical Properties of Surface Soil in a Swidden and Subsequent Fallow in a Northwestern Region of Malaita Island, Solomon Islands","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Changes in Physical and Chemical Properties of Surface Soil in a Swidden and Subsequent Fallow in a Northwestern Region of Malaita Island, Solomon Islands","subitem_title_language":"en"}]},"item_type_id":"6","owner":"18","path":["5592","34"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2010-10-07"},"publish_date":"2010-10-07","publish_status":"0","recid":"3205","relation_version_is_last":true,"title":["Changes in Physical and Chemical Properties of Surface Soil in a Swidden and Subsequent Fallow in a Northwestern Region of Malaita Island, Solomon Islands"],"weko_creator_id":"18","weko_shared_id":-1},"updated":"2024-02-26T00:35:23.470101+00:00"}