Reconstruction of past precipitation β18O using tree-ring cellulose δ18O and δ13C:: A calibration study near Lac d'Annecy, France

被引：76

作者：

Danis, PA ^{[1
]}

Masson-Delmotte, V ^{[1
]}

Stievenard, M ^{[1
]}

Guillemim, MT ^{[1
]}

Daux, V ^{[1
]}

Naveau, P ^{[1
]}

von Grafenstein, U ^{[1
]}

机构：

[1] CEA Saclay, CNRS, UMR 1572, IPSL,Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France

来源：

EARTH AND PLANETARY SCIENCE LETTERS | 2006年 / 243卷 / 3-4期

关键词：

Quercus; tree rings; proxy; oxygen; carbon; stable isotopes; humidity;

D O I：

10.1016/j.epsl.2006.01.023

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Two sets of living oaks (Quercus R.) growing under different hydrological situations were sampled near Lac d'Annecy, France. The stable isotope composition of the latewood cellulose was analysed in terms of oxygen and carbon isotopic composition for the period 1971-2001 and compared to the nearby monthly meteorological (temperature, relative humidity) and isotopic composition of precipitation records. A linear regression shows that 60% of the cellulose oxygen isotopic composition inter-annual variations are due to changes in precipitation isotopic composition and relative humidity. The small slope between cellulose versus precipitation oxygen isotopic composition suggests a significant contribution of local continental recycling and questions the common assumption that vapour oxygen isotopic composition is at equilibrium with precipitation isotopic composition in Europe during the growing season. Finally, the combined use of tree-ring oxygen and carbon isotopic composition records enables to account for leaf water enrichment due to stomata stress and to provide a reconstruction (R-2 =0.64) of the summer precipitation isotopic composition. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：439 / 448

页数：10

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