SoilGrids

http://soilgrids.org

SoilGrids is a collection of updatable soil property and class maps of the world at a relatively coarse resolution of 1 km and 250 m produced using state-of-the-art model-based soil spatial prediction methods: 3D geostatistics and/or machine learning.

SoilGrids is a global soil data product generated at ISRIC ━ World Soil Information as a result of international collaboration (see list of contributing agencies) and as a proposed contribution to the Global Soil Partnership initiative. SoilGrids1km and SoilGrids250m are outputs of a system for automated global soil mapping developed within the Global Soil Information Facilities framework. This system is intended to facilitate global soil data initiatives and to serve as a bridge between global and local soil mapping. See also: AfSoilGrids250m system.

Important notice: the SoilGrids layers are of limited thematic (wide confidence limits) and spatial accuracy and still contain artefacts and missing pixels. Help us improve these maps by submitting a validation report or by contributing georeferenced soil profiles (points) and covariate data (rasters with global coverage at resolutions of 1 km, 250 m, 100 m or better). As soon as we receive new ground observations and/or new validation reports, we can re-run the predictions to produce an updated version of SoilGrids. Read more...

Last update: June 2016.

Under preparation: update SoilGrids250m (end of 2016).

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Data download

GeoTiffs of SoilGrids1km (236 GeoTiffs) can be obtained either via the web-mapping interface at www.soilgrids.org, via FTP, via the REST service and/or via a smartphone App. To download the complete (global soil mask) images please use the FTP service:

  1. FTP: ftp.soilgrids.org
  2. username: soilgrids
  3. password: soilgrids

Preview SoilGrids1km in Google Earth (predicted soil classes and properties):

  •  TAXGWRB - World Reference Base (2006) Group
  •  TAXOUSDA - Keys to Soil Taxonomy suborder
  •  ORCDRC_sd1_M - Soil organic carbon content (fine earth fraction) in permilles for 2.5 cm depth (0-5 cm)
  •  PHIHOX_sd1_M - Soil pH x 10 in H2O (mean estimate) for 2.5 cm depth (0-5 cm)
  •  CLYPPT_sd1_M - Soil texture fraction clay in % (mean estimate) for 2.5 cm depth (0-5 cm)
  •  BLD_sd1_M - Bulk density in kg / m3 (mean estimate) for 2.5 cm depth (0-5 cm)
  •  CRFVOL_sd1_M - Coarse fragments volumetric in % (mean estimate) for 2.5 cm depth (0-5 cm)