Interactions between leaf nitrogen status and longevity in relation to N cycling in three contrasting European forest canopies
Seasonal and spatial variations in foliar nitrogen laguna 3hp dust collector (N) parameters were investigated in three European forests with different tree species, viz.beech (<i>Fagus sylvatica</i> L.), Douglas fir (<i>Pseudotsuga menziesii</i> (Mirb.) Franco) and Scots pine (<i>Pinus sylvestris</i> L.) growing