?3b), as was also the case for litter N concentrations (Table?2, Fig.?3c). The best-fit #links# model for litter P concentrations involved total N deposition (Table?2, Fig.?3d). However, a model involving oxidized N deposition with temperature as an interacting term was also significant (Table?2), indicating that the highest litter P concentrations were found at warmer sites receiving higher oxidi