Climatic Change

, Volume 97, Issue 1–2, pp 229–252 | Cite as

A forced response to twentieth century climate conditions of two Spanish forests inferred from widths and stable isotopes of tree rings

  • Octavi PlanellsEmail author
  • Emilia Gutiérrez
  • Gerhard Helle
  • Gerhard H. Schleser


This dendroclimatological research is based on two close pine forests (Pinus sylvestris and Pinus uncinata) located at the Northern Iberian System (Spain), and three tree-ring variables (ring widths, δ 13C and δ 18O). The climate-tree growth system was assessed at local and regional scales using three climate datasets. Calibration of tree-ring records with climate showed a diversity of information recorded in the different variables, such as a general response to temperature and precipitation of current growing period, and an important contribution of previous year conditions understood as the use of food reserves. The analysis of the stability of climate-tree growth relationships throughout the twentieth century showed a shift of those climatic variables to which trees responded and results suggested an enhancement of reserve use on current tree growth. The results obtained in this research made clear a physiological adaptation of trees to changing climate. The results provided hints that the recent warming coupled to slight precipitation decay are forcing growth of studied trees to a higher stress status and to a higher climate-growth synchronisation. These instabilities also have implications on future dendroclimatic reconstructions performed with trees growing under changing environments.


Tree Growth Tree Ring Ring Width Tree Ring Cellulose Response Function Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Octavi Planells
    • 1
    Email author
  • Emilia Gutiérrez
    • 1
  • Gerhard Helle
    • 2
  • Gerhard H. Schleser
    • 2
  1. 1.Ecology Department, Faculty of BiologyUniversitat de BarcelonaBarcelonaSpain
  2. 2.Deutsches GeoForschungszentrum Potsdam, Sektion 5.2 Climate Dynamics and Landscape EvolutionPotsdamGermany

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