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  1. 紀要論文
  2. 琉球大学農学部学術報告
  3. 44号
  1. 部局別インデックス
  2. 農学部

沖縄における天然生常緑広葉樹林のリター現存量について

http://hdl.handle.net/20.500.12000/3720
http://hdl.handle.net/20.500.12000/3720
a73d8570-ed52-4857-9c32-ed6862f9fbf7
名前 / ファイル ライセンス アクション
KJ00000161841.pdf KJ00000161841.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 沖縄における天然生常緑広葉樹林のリター現存量について
言語 ja
作成者 徐, 小牛

× 徐, 小牛

ja 徐, 小牛

平田, 永二

× 平田, 永二

ja 平田, 永二

山盛, 直

× 山盛, 直

ja 山盛, 直

Xu, Xiaoniu

× Xu, Xiaoniu

en Xu, Xiaoniu

Hirata, Eiji

× Hirata, Eiji

en Hirata, Eiji

Yamamori, Naoshi

× Yamamori, Naoshi

en Yamamori, Naoshi

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 リター
言語 ja
主題Scheme Other
主題 常緑広葉樹林
言語 ja
主題Scheme Other
主題 林分成長因子
言語 ja
主題Scheme Other
主題 立地
内容記述
内容記述タイプ Other
内容記述 本調査は, 沖縄の天然生常緑広葉樹林のリターの現存量について, 22箇所で調査を行い, 地形, 土壌型及び林分構造との関係を検討したものである。調査の結果を要約すると, およそ次の通りである。1.天然生常緑広葉樹林のリター現存量は約12ton/haで, リュウキュウマツ林の17ton/ha(今回, 5箇所で調査)に比べるとやや少ない。また, 暖帯地方のナラ, カシ林とはほぼ近似した値を示すが, 冷温地方のブナ林と比較すると, その約40%程度である。2.全リター量の内, 葉リター, 枝リター, 幹リター及び(F+H)層の占める割合は, それぞれ36%, 22%, 20%及び22%となっていて, 葉リターが最も多く, それ以外は殆ど類似している。3.リター現存量は, 土壌型と密接な関係を示し, 土壌の乾燥したY_B型で多く, 土壌水分の比較的多いY_C型では少なくなる傾向がある。4.リター現存量と林分構造との関係をみると, 平均直径, ha当たり本数及び断面積とは比較的高い相関が認められるが, そのほかの因子とははっきりした傾向を示さない。5.リターの分解速度を表す(F+H)/L_lの値を比較すると, 寒冷地方で大きく, 暖帯, 亜熱帯地方で小さくなっている。すなわち, 寒冷地方で分解速度は遅く, 暖帯, 亜熱帯地方で速いといえる。
内容記述タイプ Other
内容記述 The accumulation of litter on forest floor was studied at 27 sites in Experimental Forest, University of the Ryukyus at Yona, Okinawa. The litter accumulation on forest floor amounted, averagely, to 12.02t/ha in evergreen broadleaved forest, lower than that in Ryukyu pine forest, which amounted to 17.25t/ha. The leaf litter, branch litter, wood litter and (F+H) layer amounted for about 36%, 22%, 20% and 22% of the total litter accumulation, respectively. The litter accumulation was strongly affected by soil type or soil moisture. But, the effect of the stand structure over litter accumulation was complicated. The result from the investigation demonstrated that basal area, mean d. b. h. and density of stand appeared to have certain tendency to affect on litter accumulation. The mean ratio of (F+H) to L_l in evergreen broadleaved forest was 0.38,lower than that in pine forest, which was 0.73. The estimated decomposition rate of litter was very rapid as those in other forests in Japan.
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/20.500.12000/3720
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 44, p. 313-322
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