A 180-year-long isotopic record of tree-ring cellulose on Okinawa Island, Japan

Ryu Uemura, Miki Uemura, Masaki Sano, Takeshi Nakatsuka

    Research output: Contribution to journalArticle

    Abstract

    The oxygen isotope ratio (d 18 O) of tree-ring cellulose provides a valuable climatic record with an annual timescale. In Japan, the cellulose d 18 O records have been accumulated over the past decade. However, no long-term records have been reported for the southern subtropical island, Okinawa-jima, where many long-lived trees were burned during the Second World War and have been periodically damaged by typhoons. Here, we show a cellulose d 18 O of Ryukyu Pine (Pinus luchuensis Mayr.) from the Okinawa-jima island. This d 18 O data, which was obtained from a tree-disk preserved in a University Museum, cover a 95-year period before meteorological observation began on this island in 1891. The cellulose d 18 O variations negatively correlate with the amount of precipitation during the rainy season, suggesting that the cellulose d 18 O values are largely affected by d 18 O of rainwater rather than large scale ENSO variations.

    Original languageEnglish
    Pages (from-to)E21-E27
    JournalGEOCHEMICAL JOURNAL
    Volume52
    Issue number6
    DOIs
    Publication statusPublished - 2018 Jan 1

    Fingerprint

    tree ring
    cellulose
    Cellulose
    Japan
    rings
    Oxygen Isotopes
    typhoons
    museums
    oxygen isotope ratio
    oxygen isotopes
    isotope ratios
    Museums
    rainwater
    El Nino-Southern Oscillation
    museum
    timescale

    Keywords

    • Monsoon
    • Okinawa
    • Oxygen isotope
    • Paleo climate
    • Tree-ring

    ASJC Scopus subject areas

    • Geophysics
    • Geochemistry and Petrology

    Cite this

    A 180-year-long isotopic record of tree-ring cellulose on Okinawa Island, Japan. / Uemura, Ryu; Uemura, Miki; Sano, Masaki; Nakatsuka, Takeshi.

    In: GEOCHEMICAL JOURNAL, Vol. 52, No. 6, 01.01.2018, p. E21-E27.

    Research output: Contribution to journalArticle

    Uemura, Ryu ; Uemura, Miki ; Sano, Masaki ; Nakatsuka, Takeshi. / A 180-year-long isotopic record of tree-ring cellulose on Okinawa Island, Japan. In: GEOCHEMICAL JOURNAL. 2018 ; Vol. 52, No. 6. pp. E21-E27.
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