Table II

Mass-based N concentrations (mg g⁻¹ DW) and leaf or stem mass per area (LMA and SMA, g DW m⁻²) of leaves and current-year stems of Fagus sylvatica L. in each N treatment (T1, T2, and T3). Data are means ±1 SE with n = 3. For each organ (leaves or stems), letters (a, b, and c) indicate significant differences between N treatments.