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>2</b>報):<b>7</b>樹種の樹木年輪情報と気候情報との関係  [in Japanese] Dendrochronological Study on Tree Growth Responses to Climate in Okutama, Tokyo II.:Relationships between climate and tree-ring information for seven tree species  [in Japanese]

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Abstract

前報で構築した東京都西多摩郡奥多摩町に生育する7樹種の樹木年輪指数(年輪幅指数:<i>IW</i><sub>ar</sub>,年輪内平均密度指数:<i>ID</i><sub>ar</sub>)と同町で観測された気候変数との関係を検討した。その結果,樹木年輪指数と気候変数との間で認められた有意な相関関係の中には,多くの樹種間に共通した相関関係が,(1)<i>IW</i><sub>ar</sub>と当年1月から3月の月平均気温との間,(2)<i>ID</i><sub>ar</sub>と当年5月から8月の月平均気温との間,(3)<i>ID</i><sub>ar</sub>と前年5月から7月の月平均気温との間,(4)<i>ID</i><sub>ar</sub>と当年6月から9月の月降水日数との間で確認された。さらに,上記した4つの相関関係には樹種による違いも確認できた。また,月平均気温と月最高気温,月最低気温は,樹木年輪指数との相関関係において似た傾向が認められたが,月最高気温の方が月平均気温や月最低気温よりも樹木年輪指数との間に有意な相関関係が多く,その相関係数の絶対値は大きかった。

The relationships between various climate parameters and previously constructed tree-ring indices (annual ring width index, <i>IW</i><sub>ar</sub>; annual ring density index, <i>ID</i><sub>ar</sub>) for seven tree species found in Okutama, Tokyo were examined. Significant correlations between tree-ring indices and climate parameters were observed. The four major correlations were: 1) a positive correlation between <i>IW</i><sub>ar</sub> and monthly mean temperature from January to March of the current year; 2) a positive correlation between <i>ID</i><sub>ar</sub> and monthly mean temperature from May to August of the current year; 3) a negative correlation between <i>ID</i><sub>ar</sub> and monthly mean temperature from May to July of the previous year; and 4) a negative correlation between <i>ID</i><sub>ar</sub> and number of days with precipitation from June to September of the current year. These four relationships also demonstrated the varying responses of different tree species to variations in climate. The significant correlation coefficients obtained from the relationships between the tree-ring indices and a) monthly maximum temperature were greater than those obtained from the relationships between the tree-ring indices and b) monthly mean temperature and c) monthly minimum temperature.

Journal

  • Mokuzai Gakkaishi

    Mokuzai Gakkaishi 60(1), 1-8, 2014

    The Japan Wood Research Society

Codes

  • NII Article ID (NAID)
    130004469057
  • Text Lang
    JPN
  • ISSN
    0021-4795
  • Data Source
    J-STAGE 
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