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.<br>Please cite Qi G, Wei J, Li H, et al. Insight into rapid vegetation dynamics in China’s saltmarshes reveals overlooked coastal soil carbon storage[J]. One Earth, 2026, 9(2) if using for academic research.

本数据集提供了2022年中国滨海盐沼0–10 cm表层土壤预测土壤有机碳储量（CS, g C m⁻²）的10米分辨率GeoTIFF栅格数据。该估算值通过整合ExtraTrees模型输出的模拟容重（bulk density, BD）与土壤有机碳含量（soil organic carbon content, SOC）结果计算得到，该模型基于2020–2023年野外实测数据与多类环境预测因子训练而成，预测因子涵盖卫星指数、气候变量、人为扰动因子以及Alpha Earth Foundation（AEF）波段。本数据集可为估算滨海生态系统土壤碳储量垂直梯度及总蓝碳储量提供基准支撑。