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琵琶湖南岸地域のヒノキ年輪データによる気候変動再現の試み
https://doi.org/10.18999/sumrua.12.193
https://doi.org/10.18999/sumrua.12.193805ad678-62a7-43ad-9da3-ba03b5fba891
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2010-05-31 | |||||
タイトル | ||||||
タイトル | 琵琶湖南岸地域のヒノキ年輪データによる気候変動再現の試み | |||||
その他のタイトル | ||||||
その他のタイトル | Reconstruction of climate changes using tree-ring data of of Japanese cypress grown in the southern coastal region of Lake Biwa | |||||
著者 |
庄, 建治朗
× 庄, 建治朗× Sho, Kenjiro× 高橋, 浩× Takahashi, Hiroshi Aoki× 中村, 俊夫× Nakamura, Toshio |
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権利 | ||||||
権利情報 | 名古屋大学年代測定資料研究センター 天然放射性元素測定小委員会 | |||||
権利 | ||||||
権利情報 | 本文データは学協会の許諾に基づきCiNiiから複製したものである | |||||
抄録 | ||||||
内容記述 | We investigated that the climatic factors controlling the stable carbon isotopic composition and tree-ring width of annual rings of Japanese Cypress (Chamaecyparis obtusa), and moreover, attempted to reconstruct climatic changes for ca. 300 years using the relationship between tree-ring data and climatic factors. 50 grubs with more than 100 rings, which were collected at the southern coastal region of Lake Biwa, were used for ring-width analysis and 5 grubs were used for isotopic analysis. The δ^<13>C values of annual rings from 1936 to 1987 were measured in the all five samples. There was little spatial δ^<13>C variation of annual rings within a radius of 15km in the present study area, since the correlation coefficients in interzonal comparison (r=0.52 to 0.77) were identical with those of the individual variations in one forest (r=0.40 to 0.75). This result suggested that the δ^<13>C values of annual rings were mainly influenced by the extensive environmental factors at least 30km. The δ^<13>C fluctuations of annual rings from the secular trends and ring-width indices were compared with the monthly meteorological data, i.e., temperature, precipitation, number of precipitation days and sunshine duration. As resuls, the δ^<13>C chronology showed the best correlation with sunshine duration (positive, r=0.36) and number of precipitation days (negative, r=-0.32) in early summer, and the ring-width indices showed the best correlation with temperature in early spring (positive, r=0.25), precipitation in early summer (negative, r=-0.30) and sunshine duration in previous winter (positive, r=0.26). Subsequently, fluctuation of precipitation and number of precipitation days in early summer (May-June), whih showed high correlation with both δ^<13>C and ring-width indices, were reconstructed for the interval of 1727-1994 from the two chronologies of tree-ring data using multiple regression analysis. The estimated chronologies of the climate factors matched with the observed data in secular trends except for the interval of 1950-70's, in which annual rings of the samples were probably trongly affected by nonclimatic environmental factors such as air pollution. | |||||
内容記述タイプ | Abstract | |||||
内容記述 | ||||||
内容記述 | タンデトロン加速器質量分析計業績報告 Summaries of Researches Using AMS 2000 (平成12)年度 | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
出版者 | 名古屋大学年代測定資料研究センター 天然放射性元素測定小委員会 | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.18999/sumrua.12.193 | |||||
ID登録タイプ | JaLC | |||||
関連情報 | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | URI | |||||
関連識別子 | http://ci.nii.ac.jp/naid/110000475695/ | |||||
書誌情報 |
名古屋大学加速器質量分析計業績報告書 巻 12, p. 193-204, 発行日 2001-03 |
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フォーマット | ||||||
application/pdf | ||||||
著者版フラグ | ||||||
値 | publisher |