Global topsoil SOC stock from 1981 to 2018 estimated by combining process-based model and space-for-time digital soil mapping

This dataset include the topsoil (0-30cm) soil organic carbon (SOC) stocks in mineral soils under major land classes (forest, grassland, shrub land, savannas, cropland, cropland/natural vegetation mosaic, and sparely vegetated land) from 1981 to 2018. The long-time series of SOC stocks were estimated by using a space-for-time digital soil mapping (DSMst) model where the RothC-simulated SOC stocks were incorporated as one of the dynamic covariates of the DSMst model.

The detail information on the products were given below:

Name: DSMst-RothC 5-km global topsoil SOC stock products

Period: 1981-2018

Spatial resolution: 0.041666667 degree

Temporal resolution: 1 year

CRS: geographic latitude/longitude (EPSG:4326 - WGS 84 – Geographic)

Extent: -180°, -90°: 180°, 90°

Data format: GeoTIFF

Compression: LZW

Data type: Float32

Unit: t C ha-1