Fig. 3From: Seed nutrient is more stable than leaf in response to changing multiple resources in an alpine meadowRelative changes of N, P concentrations and N:P ratio in leaf versus seed of four species (Elymus nutans, Deschampsia caespitosa, Artemisia roxburghiana, and Polygonum viviparum) by treatment interactions. Solid columns indicate a significant response to treatment interactions. Hollow columns indicate no significant response. * and ^, respectively, indicate a significant difference at P < 0.05 and P < 0.1 between leaf and seedBack to article page