Fig. 3

Water fluxes (top) and streamwater concentrations of calcium, sulfate and nitrate (center), and four-month detailed views of discharge, calcium, sulfate, and nitrate concentrations (bottom) at the Alp (a), Vogelbach (b), and Erlenbach (c). No nitrate data is plotted for the Alp River due to vastly different concentration ranges overall (see Fig. 4b).