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Growth and wood properties of 20-year-old Scots pine ( Pinus sylvestris  L.) trees were studied for 6 years in 16 closed chambers providing a factorial combination of two temperature regimes (ambient and elevated) and two carbon dioxide concentrations ([CO 2 ]) (ambient and twice ambient). The elevation of temperature corresponded to the predicted effect at the site of a doubling in atmospheric [CO 2 ]. Annual height and radial growth and wood properties were analyzed during 1997–2002. Physical wood properties analyzed included early- and latewood widths and their proportions, intra-ring wood densities, early- and latewood density and mean fiber length. Chemical wood properties analyzed included concentrations of acetone-soluble extractives, lignin, cellulose and hemicellulose.

Scots pine responses to elevated temperature and carbon dioxide concentration: growth and wood properties