Soil Grids 250m v2.0
SoilGrids was designed as a globally consistent, data-driven system for predicting soil properties and classes using global covariates and globally fitted models. If you are looking for soil information at the national and/or local level, we recommend comparing SoilGrids forecasts with soil maps from national and local soil geodatabases. National Soil Maps are usually based on more detailed input soil information and are therefore generally more accurate (within local coverage areas) than SoilGrids. For an overview of national and regional soil databases, please refer to Soil Geodatabase Compendium. Both "mean" and "median (0.5 quartile)" can be used as predictors of soil properties for a particular unit. Means represent "expected values" and provide unbiased predictions of soil properties.
| Name | Description | Mapped units | Conversion factor | Conventional units | Assets on GEE |
|---|---|---|---|---|---|
| bdod | Bulk density of the fine earth fraction | cg/cm³ | 100 | kg/dm³ | bdod_mean |
| cec | Cation Exchange Capacity of the soil | mmol©/kg | 10 | cmol©/kg | cec_mean |
| cfvo | Volumetric fraction of coarse fragments (> 2 mm) | cm3/dm3 (vol‰) | 10 | cm3/100cm3 (vol%) | cfvo_mean |
| clay | Proportion of clay particles (< 0.002 mm) in the fine earth fraction | g/kg | 10 | g/100g (%) | clay_mean |
| nitrogen | Total nitrogen (N) | cg/kg | 100 | g/kg | nitrogen_mean |
| phh2o | Soil pH | pHx10 | 10 | pH | phh2o_mean |
| sand | Proportion of sand particles (> 0.05 mm) in the fine earth fraction | g/kg | 10 | g/100g (%) | sand_mean |
| silt | Proportion of silt particles (≥ 0.002 mm and ≤ 0.05 mm) in the fine earth fraction | g/kg | 10 | g/100g (%) | silt_mean |
| soc | Soil organic carbon content in the fine earth fraction | dg/kg | 10 | g/kg | soc_mean |
| ocd | Organic carbon density | hg/dm³ | 10 | kg/dm³ | ocd_mean |
| ocs | Organic carbon stocks | t/ha | 10 | kg/m² | ocs_mean |
Literature citations:
var isric_bdod_mean = ee.Image("projects/soilgrids-isric/bdod_mean");
var isric_cec = ee.Image("projects/soilgrids-isric/cec_mean");
var isric_cfvo = ee.Image("projects/soilgrids-isric/cfvo_mean");
var isric_clay = ee.Image("projects/soilgrids-isric/clay_mean");
var isric_sand = ee.Image("projects/soilgrids-isric/sand_mean");
var isric_silt = ee.Image("projects/soilgrids-isric/silt_mean");
var isric_nitrogen = ee.Image("projects/soilgrids-isric/nitrogen_mean");
var isric_phh20 = ee.Image("projects/soilgrids-isric/phh2o_mean");
var isric_soc = ee.Image("projects/soilgrids-isric/soc_mean");
var isric_ocd = ee.Image("projects/soilgrids-isric/ocd_mean");
var isric_ocs = ee.Image("projects/soilgrids-isric/ocs_mean");
//print example image metadata and description
print(sand_mean)
//Add all layer to Map
Map.addLayer(sand_mean.select('sand_0-5cm_mean'),{min: 50, max: 1000,palette: ['5d5851','635a4b','6a5b44','715c3d','785e36','7e5f30','856129','8c6222','92641c','996515','a0660e','a66808','ad6901']},'SoilGrids250m 2.0 - Sand content ISRIC_0_5cm')
//Set basemap to Hybrid view
Map.setOptions('HYBRID')Data available from¶
Publication date¶
2020-05-04
Period¶
Fri Mar 31 1905 7:00:00 PM GMT-0500 Mon Jul 04 2016 8:00:00 PM GMT-0400
Provided by :¶
International Soil Reference and Information Centre (ISRIC)
License¶
Attribution 4.0 International (CC BY 4.0)
DOI¶
Created and Curated by: International Soil Reference and Information Centre (ISRIC)
Keywords: For example Global Soilgrid, Sandy Soil, ISRIC
Last updated: 2020-10-20