Effects of nitrogen deposition, drought and their interaction, on functional and structural traits of fraxinus ornus L. and quercus ilex L.
A controlled experiment was conducted in order to understand how functional and structural traits of species with different leaf habits (Fraxinus ornus and Quercus ilex) shift as a consequence of nitrogen (N) addition (30 Kg ha yr-1), and to explore the effect that nitrogen has on the water stress response. The experiment was divided in two stages: stage I, nitrogen addition under well water condition; stage II, nitrogen addition under drought. Functionality of the photosynthetic machinery, growth and biomass partitioning were assessed. The N content at leaf level increases in F.