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  1. 紀要論文
  2. 琉球大学農学部学術報告
  3. 43号
  1. 部局別インデックス
  2. 農学部

日本の林業生産の特質に関する研究(生物生産学科)

http://hdl.handle.net/20.500.12000/3727
http://hdl.handle.net/20.500.12000/3727
80dcc916-9c65-466b-9a0f-0168750b8caa
名前 / ファイル ライセンス アクション
KJ00000161798.pdf KJ00000161798.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2008-02-14
タイトル
タイトル 日本の林業生産の特質に関する研究(生物生産学科)
言語 ja
作成者 篠原, 武夫

× 篠原, 武夫

ja 篠原, 武夫

アフェルディ, ダデボ マーク

× アフェルディ, ダデボ マーク

ja アフェルディ, ダデボ マーク

福仲, 憲

× 福仲, 憲

ja 福仲, 憲

Shinohara, Takeo

× Shinohara, Takeo

en Shinohara, Takeo

Dadebo, Mark A.

× Dadebo, Mark A.

en Dadebo, Mark A.

Fukunaka, Ken

× Fukunaka, Ken

en Fukunaka, Ken

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
主題
言語 ja
主題Scheme Other
主題 森林資源
言語 ja
主題Scheme Other
主題 小規模林業
言語 ja
主題Scheme Other
主題 用材自給率の低下
言語 ja
主題Scheme Other
主題 スギ
言語 ja
主題Scheme Other
主題 ヒノキ
言語 ja
主題Scheme Other
主題 森林組合
内容記述
内容記述タイプ Other
内容記述 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。
内容記述タイプ Other
内容記述 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.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学農学部
言語
言語 eng
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/3727
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0370-4246
収録物識別子タイプ NCID
収録物識別子 AN00250548
収録物名
言語 ja
収録物名 琉球大学農学部学術報告
書誌情報
号 43, p. 43-54
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