WISE derived soil properties on a 0.5 by 0.5 degree global grid, version 3.0

This harmonized, gridded global data set of soil parameter estimates includes files listing: (1) soil parameter estimates for the component soil units of each terrestrial grid cell, in un-binned format, and (2) soil parameter estimates aggregated or binned into a number of predefined classes.



The spatial data, with a resolution of ½ by ½ degree, was derived from the ISRIC-WISE soil database. The land surface between longitudes -180o W and +180o E and latitudes +90o N and -90o S has been characterized using 45948 unique map units; each of these can comprise from one to ten soil units, characterized according to the original legend of the 1:5 million scale Soil Map of the World (FAO-Unesco 1974).



Soil parameter estimates for each of these units were derived from analyses of some 9600 profiles held in a working copy of WISE (ver. 2.0). Twenty-two soil variables, identified as being useful for agro-ecological zoning, land evaluation, crop growth simulation, modelling of soil gaseous emissions and analyses of global environmental change, were considered.



Parameter estimates for the topsoil (0-30 cm) and the subsoil (30-100 cm) are presented for the following variables: content of organic carbon, total nitrogen, the C/N ratio, pH(H2O), CECsoil, CECclay, base saturation, total exchangeable bases, aluminum saturation, exchangeable sodium percentage (ESP), electrical conductivity of saturated paste (ECe), calcium carbonate content, gypsum content, content of sand, silt and clay, content of fragments less than 2 mm, bulk density, total porosity. For soil drainage class, effective soil depth, and available water capacity (-10 to -1500 kPa), however, parameter estimates are presented on a profile basis.



The parameter estimates - median values - presented here should be seen as best estimates; possible types and sources of uncertainty are discussed in the report. The data are considered appropriate for exploratory studies at global scale (greater than 1:5 000 000).



Note: A more recent assessment, at a resolution of 30arcsec (WISE30sec), is available at: http://data.isric.org/geonetwork/srv/eng/catalog.search#/metadata/dc7b283a-8f19-45e1-aaed-e9bd515119bc

Simple

Date (Publication)
2005-12-01
Citation identifier
d9eca770-29a4-4d95-bf93-f32e1ab419c3
Presentation form
Digital map
Status
Completed
Point of contact
Organisation name Individual name Electronic mail address Role

ISRIC - World Soil Information

Niels Batjes

niels.batjes@isric.org

Author

ISRIC - World Soil Information (WDC - Soils)

Data info desk

data@isric.org

Point of contact

ISRIC - World Soil Information (WDC - Soils)

Data info desk

data@isric.org

Resource provider
Theme

  • calcium

  • carbon

  • cation exchange capacity

  • electrical conductivity

  • nitrogen

  • organic carbon

  • bulk density

  • soil classification

  • soil depth

  • soil profiles

  • pH

  • salinity

  • texture

  • water holding capacity

  • nutrients

Stratum

  • Soil science

Region

  • Global
Access constraints
License
Use constraints
License
Other constraints
Attribution 3.0 International (CC BY 3.0)
Spatial representation type
Grid
Distance
30  arc-minutes
Language
English
Character set
UTF8
Topic category
  • Geoscientific information
Begin date
1995-08-01
End date
2005-12-01
N
S
E
W
thumbnail




Reference system identifier
EPSG / 4326
Distribution format
Name Version

zip
Distributor contact
Organisation name Individual name Electronic mail address Role

ISRIC - World Soil Information (WDC - Soils)

Data onfo desk

data@isric.org

Publisher

Digital transfer options

OnLine resource
Protocol Linkage Name

WWW:DOWNLOAD-1.0-ftp--download

 		https://files.isric.org/public/wise/wise_30min_v3.zip

Download

WWW:LINK-1.0-http--related

 		https://www.isric.org/projects/world-inventory-soil-emission-potentials-wise

Project webpage

WWW:LINK-1.0-http--related

 		https://library.wur.nl/WebQuery/wurpubs/fulltext/286181

Report
Hierarchy level
Dataset
Statement

Batjes NH 2005. ISRIC-WISE global data set of derived soil properties on a 0.5 by 0.5 degree grid (ver. 3.0). Report 2005/08, ISRIC - World Soil Information, Wageningen, https://library.wur.nl/WebQuery/wurpubs/fulltext/286181

Metadata

File identifier
d9eca770-29a4-4d95-bf93-f32e1ab419c3 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Hierarchy level name

dataset
Date stamp
2025-02-05T10:33:05
Metadata standard name

ISO 19115:2003/19139
Metadata standard version

2003/Cor.1:2006
Metadata author
Organisation name Individual name Electronic mail address Role

ISRIC - World Soil Information

Data infodesk

data@isric.org

Point of contact
 
 

Overviews

overview

Spatial extent

thumbnail

Keywords

bulk density calcium carbon cation exchange capacity electrical conductivity nitrogen nutrients organic carbon pH salinity soil classification soil depth soil profiles texture water holding capacity
Stratum

Soil science


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