Oxygen isotope ratios of oak in east England: implications for reconstructing the isotopic composition of precipitation

Annual latewood delta super(18)O values from oak (Quercus robur L.) are presented for the period 1895-1994 for four trees growing in eastern England. We demonstrate, using the delta super(18)O values of precipitation from Wallingford (1982-1994) and the longer time-series from Groningen (1965-1994),...

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Bibliographic Details
Published in:Earth and planetary science letters 2001-08, Vol.191 (1-2), p.21-31
Main Authors: Robertson, I, Waterhouse, J.S, Barker, A.C, Carter, A.H.C, Switsur, V.R
Format: Article
Language:English
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Summary:Annual latewood delta super(18)O values from oak (Quercus robur L.) are presented for the period 1895-1994 for four trees growing in eastern England. We demonstrate, using the delta super(18)O values of precipitation from Wallingford (1982-1994) and the longer time-series from Groningen (1965-1994), that the delta super(18)O values of winter precipitation had the strongest influence on the delta super(18)O values of tree-ring cellulose. The influence of winter precipitation on the spring/summer formed latewood may be explained by several factors: most soil water is replenished during the winter, water may take several months to penetrate the unsaturated zone, and oaks may sample water from lower in the profile during times of water stress. The delta super(18)O values of oak latewood cellulose were also significantly (P
ISSN:0012-821X
DOI:10.1016/S0012-821X(01)00399-5