Simulated soil organic carbon stock (CS) of surface soils (0–10 cm) in coastal saltmarshes of China (2022)

This dataset provides a 10-m resolution GeoTIFF raster of predicted soil organic carbon stock (CS, g C m⁻²) in the 0–10 cm surface layer of coastal saltmarsh soils in China for 2022. Estimates were calculated by integrating simulated bulk density (BD) and soil organic carbon content (SOC) outputs from the ExtraTrees model, trained on 2020–2023 field measurements and multiple environmental predictors, including satellite indices, climate variables, anthropogenic disturbance factors, and Alpha Earth Foundation (AEF) bands. This dataset provides the baseline for estimating vertical gradients of soil carbon storage and total blue carbon stocks in coastal ecosystems.