Figure 3
From: Different responses of alpine plants to nitrogen addition: effects on plant-plant interactions
Mean log response ratio (LRR) of (a) Leaf number, (b) Leaf length and (c) Aboveground biomass of all target species (see Fig. 2 for the full name of each species) either receiving nutrients (N; black column) or not (CK; grey column) at wet site. Error bars represent 1SE. Asterisks above bars indicate the significance of difference between CK and N in a two-sample t-test: *P < 0.05; **P < 0.01; ***P < 0.001.
