Fig. 3: River syndromes induced by extreme changes in solutes.
From: Global syndromes induced by changes in solutes of the world’s large rivers
A–G represent seven river syndromes associated with ion concentration. The colored area indicates that the river is experiencing a specific syndrome as the solute metric exceeds a certain threshold. The central open circle refers to the ion concentration range when the river ecosystem is in a healthy state. Colored annuli refer to ion concentrations that exceed prescribed thresholds, causing river syndromes. Colored dots in (A–G) denote measured data, and colored lines indicate the three-year moving average.
