[Carpinteria Salt Marsh Sulfur Speciation in Sediments and Biomass] - Sulfur speciation of sediment and biomass from the Carpinteria Salt March sampled in 2020 and 2021 (Carbon Storage in Mangrove Ecosystems via Abiotic Sulfurization)

We collected six sediment cores from three habitat types at Carpinteria Salt Marsh Reserve (34.41336°N, 119.84365°W) in July 2020. One core was used to establish dry bulk density, while the other was reserved for geochemical measurements.

Both cores were kept at -20°C until analysis could be carried out. We provide data on the speciation of sulfur in acid hydrolysis resistant organic matter and biomass samples. Data will be useful for those interested in assessing organic matter sulfurization in blue carbon ecosystems such as mangroves, seagrass meadows and salt marshes.