Number 1, January

Tree Physiology 20:1–12 [ Summary ] [ Full Text ]
Differences in leaf gas exchange and water relations among species and tree sizes in an Arizona pine–oak forest
T. E. Kolb and J. E. Stone

Tree Physiology 20:13–22 [ Summary ] [ Full Text ]
Spatial and temporal variability of foliar mineral concentration in beech (Fagus sylvatica) stands in northeastern France
A. Duquesnay, J. L. Dupouey, A. Clement, E. Ulrich and F. Le Tacon

Tree Physiology 20:23–32 [ Summary ] [ Full Text ]
Assessing forest soil CO₂ efflux: an in situ comparison of four techniques
Ivan A. Janssens, Andrew S. Kowalski, Bernard Longdoz and Reinhart Ceulemans

Tree Physiology 20:33–40 [ Summary ] [ Full Text ]
Effects of nitrogen source and defoliation on growth and biological dinitrogen fixation of Gliricidia sepium seedlings
Pekka Nygren, Victor Vaillant, Lucienne Desfontaines, Pablo Cruz and Anne Marie Domenach

Tree Physiology 20:41–48 [ Summary ] [ Full Text ]
Influence of forage harvesting regimes on dynamics of biological dinitrogen fixation of a tropical woody legume
Pekka Nygren, Pablo Cruz, Anne Marie Domenach, Victor Vaillant and Jorge Sierra

Tree Physiology 20:49–56 [ Summary ] [ Full Text ]
Light spectral composition in a tropical forest: measurements and model
Francisco de Castro

Tree Physiology 20:57–63 [ Summary ] [ Full Text ]
Influence of temperature and leaf-to-air vapor pressure deficit on net photosynthesis and stomatal conductance in red spruce (Picea rubens)
Michael E. Day

Tree Physiology 20:65–72 [ Summary ] [ Full Text ]
Radiation-use efficiency and dry matter partitioning of a young olive (Olea europaea) orchard
M. J. Mariscal, F. Orgaz and F. J. Villalobos