軟X線デンシトメトリーによる苫小牧地方アカエゾマツ造林木194個体における年輪情報と気象情報の関係解析

概要

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Tree rings are past records of the genus factors, competition and environment. The effects of these factors are complex. In recent years, human factors have become the biggest problem for the earth's environment. Tree rings are remarkable scientific objects because we can obtain past weather information from tree rings. In this study, 194 samples from a Picea glehnii MAST. plantation in the Tomakomai district were analyzed for obtaining information of the past weather. Using X-ray densitometry, the tree ring information data on ring widths, early wood widths, late wood widths, ring volume densities, early wood volume densities and late wood volume densities are explained. I estimate past weather effect on tree rings using multiple regression analyses from the tree ring. information data. It was suggested that temperatures of the growing season from spring to summer positively affect ring widths. Temperatures of the late wood formation period positively affects ring volume densities, and temperatures and insolation in the winter season negatively influence ring widths and ring volume densities.
一般社団法人日本森林学会の論文
1994-01-01