Extended Data Fig. 2: \({\mathbf{DON}}\!:\!{{\mathbf{NO}}}_{\mathbf{3}}^{\mathbf{-}}\) ratio variation across the PRB. | Nature Geoscience

Extended Data Fig. 2: \({\mathbf{DON}}\!:\!{{\mathbf{NO}}}_{\mathbf{3}}^{\mathbf{-}}\) ratio variation across the PRB.

From: Carbonate weathering enhances nitrogen assimilatory uptake in rivers globally

Extended Data Fig. 2

The two-sided Mann–Whitney test is applied to evaluate the difference between carbonate- and non-carbonate-dominated regions, where p < 0.01 represents highly significant, p < 0.05 represents significant, otherwise there is no statistical significance.

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