{"_buckets": {"deposit": "4a835189-269e-4c94-893c-45e928f6227e"}, "_deposit": {"id": "2002756", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2002756"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02002756", "sets": ["1642837919706", "1642838407312"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "日本の林業生産の特質に関する研究(生物生産学科)", "subitem_1551255648112": "ja"}, {"subitem_1551255647225": "Studies on the Characteristics of Forestry Production in Japan (Department of Bioproduction)", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "篠原, 武夫", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "アフェルディ, ダデボ マーク", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "福仲, 憲", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "Shinohara, Takeo", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Dadebo, Mark A.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Fukunaka, Ken", "creatorNameLang": "en"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186609386": {"attribute_name": "Subject", "attribute_value_mlt": [{"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "森林資源"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "小規模林業"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "用材自給率の低下"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "スギ"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "ヒノキ"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "森林組合"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "forest resources"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "small-scale forestry"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "industrial wood self-sufficiency decline"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Sugi (Cryptomeria japonica)"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Hinoki (Chamaecyparis obtusa)"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "forestry cooperatives"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "日本は木材需要の大部分を外材に依存している。この論文は近年の日本の林業生産の特質を森林資源と林家,木材生産,人工造林の面から明らかにしている。日本の森林面積は2,521万haで,国土面積の67%を占め,天然林は1,352万ha,人工林は1,033万haである。日本は広大な人工林を有し,森林資源は充実しつつあるが,年々の木材生産及び人工造林は減少している。林業生産活動の低下は(1)スギ,ヒノキ等から成る人工林の大部分が35年生以下のまだ伐期に達していない若齢林であること,(2)山元立木価格の低下,(3)林家の林地所有規模が零細であること,(4)林業労働力の減少・高齢化,(5)素材生産業者(伐木業者)の減少,(6)造林適地の減少,(7)丘陵の多い林地の地形等に起因している。林業生産を活発にするためには木材自給率を高めることが,非常に大切である。", "subitem_description_type": "Other"}, {"subitem_description": "Japan depends mostly on imported wood to meet domestic demand which continues to increase. This paper describes the characteristics of forestry production by studying current status of forest resources and forestry household, trends in timber production and forest plantation. The total forest covers about 25.2 million hectares, about 67 percent of total land area. Natural forest area is about 13.52 million hectares and artificial forests cover about 10.33 million hectares. Japan has a large forest plantation and forest resources are increasing substantially, but annual timber production and forest plantation area have decreased. The decrease in forestry production activity is due to (1) most of total plantation forest area covered by Sugi, Hinoki, and other species are under 35 years and not matured for cutting, (2) decreasing log prices at roadside, (3) forestry households own forest lands which are small-scale, (4) decreasing number and ageing forestry workers, (5) decrease in the number of loggers, (6) decrease in plantable land area, (7) the hilly topography of forest lands, etc. Increase in domestic wood self-sufficiency is very important in order to make forestry production active.", "subitem_description_type": "Other"}, {"subitem_description": "紀要論文", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "琉球大学農学部"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "eng"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/3727"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "0370-4246"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN00250548"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "琉球大学農学部学術報告"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus"}]}, "item_1617187056579": {"attribute_name": "Bibliographic Information", "attribute_value_mlt": [{"bibliographicIssueNumber": "43", "bibliographicPageEnd": "54", "bibliographicPageStart": "43"}]}, "item_1617258105262": {"attribute_name": "Resource Type", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_1617265215918": {"attribute_name": "Version Type", "attribute_value_mlt": [{"subitem_1522305645492": "VoR", "subitem_1600292170262": "http://purl.org/coar/version/c_970fb48d4fbd8a85"}]}, "item_1617605131499": {"attribute_name": "File", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "KJ00000161798.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2002756/files/KJ00000161798.pdf"}, "version_id": "c4bd614e-20b3-4cf7-80e2-0fa095f64dc3"}]}, "item_title": "日本の林業生産の特質に関する研究(生物生産学科)", "item_type_id": "15", "owner": "1", "path": ["1642837919706", "1642838407312"], "permalink_uri": "http://hdl.handle.net/20.500.12000/3727", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-02-14"}, "publish_date": "2008-02-14", "publish_status": "0", "recid": "2002756", "relation": {}, "relation_version_is_last": true, "title": ["日本の林業生産の特質に関する研究(生物生産学科)"], "weko_shared_id": -1}