Fig. 4: Latitudinal distribution of mean annual solute concentrations under varying trends in water discharge (Q).
From: Global syndromes induced by changes in solutes of the world’s large rivers
a Total dissolved solids (TDS). b Ca2+. c Mg2+. d Na+. e K+. f SO42−. g Cl−. h HCO3−. i Dissolved silica (DSi). The 476 dots in purple, blue, and yellow respectively represent rivers with decreasing, stable, and increasing trends in annual runoff.
