Dendrochronological investigation of distribution of Kiso Hinoki Cypress used for modern architectural buldings.

本研究的范围从东北到中国，选择了大约20座现存的现代建筑进行调查。根据我对树木年轮的分析，长野扁柏被广泛用于这两个地区的现代建筑。在其他结果中，我发现长野扁柏被用于建造国宝京都的Jishoji银阁和Togu-dou，并在世纪末广泛分布在京都的证据。此外，长野扁柏在江户时代经常被用作建筑材料的一部分。研究结果表明，长野扁柏树轮分析可为我国树木种源史研究提供有力的参考。

This study area covered from Tohoku to Chugoku regions, and approximately 20 extant modern architectural buildings were chosen for this investigation. As a result of my tree ring analysis, the Nagano Hinoki Cypress was found to be widely used to construct modern architecture across the two regions. Among other results, I found evidence that the Nagano Hinoki Cypress was used to build national treasure Jishoji-Ginkaku and Togu-dou in Kyoto and widely distributed in Kyoto by the end of 15th century. Furthermore, the Nagano Hinoki Cypress was frequently utilized as part of building materials for architectural purposes in the Edo Period. The study results demonstrate that the tree ring analysis of the Nagano Hinoki Cypress can provide strong insights into studying history of dendro- provenance in our country.