Trees

, Volume 20, Issue 1, pp 16–27

Dynamics of daily height growth in Scots pine trees at elevated temperature and CO2

  • Antti Kilpeläinen
  • Heli Peltola
  • Ismo Rouvinen
  • Seppo Kellomäki
Original Article

DOI: 10.1007/s00468-005-0008-4

Cite this article as:
Kilpeläinen, A., Peltola, H., Rouvinen, I. et al. Trees (2006) 20: 16. doi:10.1007/s00468-005-0008-4

Abstract

The aim of this study was to analyse and model the effects of elevated temperature and carbon dioxide concentration on daily height growth of 20-year-old Scots pines (Pinus sylvestris L.). The trees were grown with a low nitrogen supply in closed chambers with a factorial combination of two temperature regimes (ambient and elevated) and two carbon dioxide concentrations (ambient and twice ambient). The temperature elevation corresponded to the predicted increase at the site after a doubling in atmospheric CO2. The height growth of Scots pines was first empirically studied in terms of its onset, cessation and duration, and the allocation of daily height growth within the growing period in 2000 and 2001, and then a model predicting daily height growth as a function of daily temperature and temperature sum was developed. The empirical results showed elevated temperature to be the dominant variable explaining variation in daily height growth. Elevated temperature also hastened both the onset and cessation of height growth, and the temperature sums for both of them were higher in the elevated than in the ambient temperature treatments. The daily variation in height growth could also be explained by the daily mean temperature in the model. Elevated CO2 concentration had no effect on the onset, cessation or duration of height growth. The amount of height growth was not affected by any of the treatments.

Keywords

Climate change Daily height growth Factorial design Scots pine 

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Antti Kilpeläinen
    • 1
  • Heli Peltola
    • 1
  • Ismo Rouvinen
    • 1
  • Seppo Kellomäki
    • 1
  1. 1.Faculty of ForestryUniversity of JoensuuJoensuuFinland

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