Fig. 2. Foliar 15N of (a) bluejoint and (b) white spruce as affected by competition (C), N application level (N, mg N L–1), and watering level (W, % of volumetric soil water content). Error bars are SEs.
15N of (a) bluejoint and (b) white spruce as affected by competition (C), N application level (N, mg N L–1), and watering level (W, % of volumetric soil water content). Error bars are SEs.