Full name:
SoilGrids — global gridded soil information
Version:
2.0
Organization or Author:
Abstract:
SoilGrids is designed as a globally consistent, data-driven system that predicts soil properties and classes using global covariates and globally fitted models. If you are looking for soil information on national and/or local levels we advise you, before using SoilGrids, to compare SoilGrids predictions with soil maps derived from national and local soil geographical databases. National soil maps are usually based on more detailed input soil information and therefore are often more accurate than SoilGrids (within the local coverage area). For an overview of national and regional soil databases, please refer to the Soil Geographic Databases compendium.
The selection of soil profiles underpinning SoilGrids is larger than the publicly available set ('wosis_latest') displayed here (for details see the ESSD paper). The actual number of observations for each property varies (greatly) between profiles and with depth, generally depending on the objectives of the initial soil sampling programmes. National soil survey organisations will generally maintain a wider selection of soil profiles/properties for their country in their databases.
The selection of soil profiles underpinning SoilGrids is larger than the publicly available set ('wosis_latest') displayed here (for details see the ESSD paper). The actual number of observations for each property varies (greatly) between profiles and with depth, generally depending on the objectives of the initial soil sampling programmes. National soil survey organisations will generally maintain a wider selection of soil profiles/properties for their country in their databases.
Service location:
Geographical Coverage:
Global
GIS Data Type:
Raster
Spatial resolution:
250 m (250 x 250 m pixel)
Publication date:
2021-05-11
Reference period-start:
1905-04-01
Reference period-stop
2016-07-05
License:
Soil Properties:
Bulk Density, Soil Organic Carbon Density, Cation Exchange Capacity, silt, Soil Organic Carbon Stock, Nitrogen, Clay, sand, Coarse Fragments, Organic Carbon Content, pH, Water Content
Soil deph coverage (cm):
0-200 cm
Overview
| Name | Original name | Unit of measurement | Description |
|---|---|---|---|
| Bulk Density | Bulk density | cg/cm3 | Bulk density of the fine earth fraction |
| Cation Exchange Capacity | Cation exchange capacity | mmolc/kg | Cation Exchange Capacity of the soil |
| Coarse Fragments | Coarse fragments | cm3/dm3 | Volumetric fraction of coarse fragments (> 2 mm) |
| Nitrogen | Nitrogen | cg/kg | Total nitrogen (N) |
| pH | pH | pH x 10 | Soil pH |
| Clay | Clay | g/kg | Proportion of clay particles (< 0.002 mm) in the fine earth fraction |
| sand | Sand | g/kg | Proportion of sand particles (> 0.05 mm) in the fine earth fraction |
| silt | Silt | g/kg | Proportion of silt particles in the fine earth fraction |
| Organic Carbon Content | Organic carbon content | dg/kg | Soil organic carbon content in the fine earth fraction |
| Soil Organic Carbon Density | Organic carbon density | hg/m3 | Organic carbon density |
| Soil Organic Carbon Stock | Organic carbon stocks | t/ha | Organic carbon stocks |
| Water Content | Water content | cm3/100cm3 | Volumetric Water Content at 1500kPa in 10-3 cm3cm-3 (0.1 v% or 1 mm/m) |