Fig. 2: Inorganic carbon speciation in intertidal wetlands impacts coastal seawater pH. | Nature Communications

Fig. 2: Inorganic carbon speciation in intertidal wetlands impacts coastal seawater pH.

From: Carbonate chemistry and carbon sequestration driven by inorganic carbon outwelling from mangroves and saltmarshes

Fig. 2

TA:DIC ratios a in porewater (PW) and surface water (SW) at each site, asterisks represent median values and b distribution per group of samples. c Tidal alkalinity (TA) and dissolved inorganic carbon (DIC) ranges estimated from the difference in concentrations between low and high tide. A large tidal range implies a large porewater source. Scales were fit to improve the readability excluding 1 outlier. d Regressions between pH and TA:DIC ratios. Gray areas indicate the 95% confidence intervals of the regressions. e Buffer factor βH per group and ocean range19 presented as a grey band. Boxplots in Fig. 2b, d indicate the median (middle line), 25th, 75th percentile (box) and 5th and 95th percentile (whiskers). Sources of datasets are listed in Supplementary Table 1.

Back to article page