東京都奥多摩地域に生育する樹木の気候応答に関する樹木年輪年代学的解析(第<b>1</b>報):<b>7</b>樹種における樹木年輪クロノロジーの構築  [in Japanese] Dendrochronological Study on Tree Growth Responses to Climate in Okutama, Tokyo I.:Construction of tree-ring chronologies for seven tree species  [in Japanese]

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Abstract

東京都西多摩郡奥多摩地域に生育する7樹種を対象とし,年輪幅と年輪内平均密度を測定した。樹木年輪情報から樹木の気候応答に関する情報を抽出するための標準化平滑関数を検討し,フィルタ長10年のスプライン関数が適当であった。そして,7樹種について年輪幅と年輪内平均密度の樹木年輪クロノロジーを構築できた。樹木年輪クロノロジー間の比較により,複数樹種間に共通した経年変動があることが分かった。年輪幅指数クロノロジーと年輪内平均密度指数クロノロジーとでは異なる経年変動があることが分かった。近縁種の樹木年輪クロノロジーは,より共通した変動成分を有している傾向があることが分かった。

Tree-ring samples were collected from seven tree species growing in Okutama, Tokyo. Annual ring width and density were measured and uniform standardizing smoothing functions were used to extract information on tree-growth responses to climate. A cubic spline function with a 50% frequency response of ten years was evaluated as appropriate for the standardizing smoothing function in all seven chronologies. Chronologies of indices for ring width and ring density were then constructed for each tree species, and it was found that inter-annual variation was common to almost all of the tree species examined. Further, different patterns of inter-annual variation were observed in the chronologies derived from ring width indices and ring density indices. The variation component included in the tree-ring chronologies tended to be more similar between closely-related species than between less closely-related species.

Journal

  • Mokuzai Gakkaishi

    Mokuzai Gakkaishi 59(1), 13-21, 2013

    The Japan Wood Research Society

Codes

  • NII Article ID (NAID)
    130004469026
  • Text Lang
    JPN
  • ISSN
    0021-4795
  • Data Source
    J-STAGE 
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