TY  - JOUR
AU  - Andreu, L.
AU  - Planells, O.
AU  - Gutiérrez, E.
AU  - Helle, G.
AU  - Schleser, G. H.
TI  - Climatic significance of tree-ring width and gamma 13C in a Spanish pine forest network
JO  - Tellus / B
VL  - 60
SN  - 0280-6509
CY  - Oxford [u.a.]
PB  - Wiley-Blackwell
M1  - PreJuSER-58789
SP  - 771 - 781
PY  - 2008
N1  - We are very grateful to Oriol Bosch, Montse Ribas, Elena Muntan, Mariano Barriendos, Carlos Almarza, Pedro Antonio Tiscar, Marc Filot, Markus Leuenberger, Bruno Schull and Heinz Vos for their help during sampling, laboratory work and manuscript preparation. This research was funded by EU project ForMAT (Contract ENV4-CT97 = 0641), EU project ISONET (Contract EV K2 = 2001-00237) and EU FP6 project Millennium (GOCE 017008). The authors acknowledge the three anonymous referees for their suggestions that helped to improve the original version of the paper.
AB  - This paper examines tree-ring width and δ13C chronologies from a network of five Iberian pine forests to determine their sensitivity to climate variability under different site conditions. Interseries comparisons revealed better and more homogenous agreement among δ13C records than among tree-ring width series of the different sites. This suggests that δ13C ratios may preferentially record large-scale climatic signals, whereas ring-width variations may reflect more local factors. A negative relationship was found between ring-width and δ13C. As inferred from response function analyses, ring-width and δ13C showed significant relationships with climate. The analyses of different sites and species revealed unshared tree-ring width responses to summer temperature and precipitation, whereas all δ13C series were highly sensitive to current year summer precipitation and, to a lesser extent, to current summer temperature. A strong summer precipitation signal seems to dominate the δ13C of trees growing under Mediterranean climate, even when the mean climatic site conditions do not indicate distinct summer drought. Therefore, δ13C values reflect precipitation variability during the summer season better than tree-ring widths. This demonstrates that δ13C from tree-rings can be a very useful tool for climatic reconstruction in the Mediterranean region, especially when climate-growth relationships are weak.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000260140600007
DO  - DOI:10.1111/j.1600-0889.2008.00370.x
UR  - https://juser.fz-juelich.de/record/58789
ER  -