How many liters of water does a mature mangrove forest sequester per square meter annually?. Requests a numeric sequestration figure illustrating blue carbon power.

No defensible liters-per-square-meter figure can be calculated from the attached sources. The water-focused study reports that mangroves use freshwater conservatively and that global water-use differences are measured in trillions of liters, but the supplied findings do not provide an annual freshwater-use value for a mature mangrove forest in liters per square meter.

The attached sources instead provide carbon sequestration figures, which must not be interpreted as water volumes. The Blue Carbon Initiative gives an average mangrove sequestration rate of 6 to 8 Mg CO₂e per hectare per year. ^{Converting hectares to square meters, this equals 0.6 to 0.8 kg CO₂e m⁻² yr⁻¹ because 1 hectare = 10,000 m².}

A separate attached source reports 174 g C m⁻² yr⁻¹ as a mangrove carbon-burial rate. ^{Thus, the defensible numeric blue-carbon answer is approximately 0.6–0.8 kg CO₂e per square meter annually, or 174 g of carbon per square meter annually under the cited burial estimate, not a liters-of-water figure.}