54aebf11-ec73-4ff8-bf6c-ecff4b0725ea dataset Matieu Henry FAO Matieu.Henry@fao.org Contact IIASA info@iiasa.ac.at 2025-04-10T09:48:31 ISO 19115:2003/19139 2003/Cor.1:2006 4326 EPSG Harmonized World Soil Database (HWSD) version 2.0 2023-02-02 54aebf11-ec73-4ff8-bf6c-ecff4b0725ea The Harmonized World Soil Database version 2.0 (HWSD v2.0) is a unique global soil inventory providing information on the morphological, chemical and physical properties of soils at approximately 1 km resolution. Its main objective is to serve as a basis for prospective studies on agro-ecological zoning, food security and climate change. The Harmonized World Soil Database (HWSD) was established in 2008 by the International Institute for Applied Systems Analysis (IIASA) and FAO, and in partnership with International Soil Reference and Information Centre (ISRIC), the European Soil Bureau Network (ESBN) and the Institute for Soil Sciences Chinese Academy of Sciences (CAS). The data entry and harmonization within a Geographic Information System (GIS) was carried out at IIASA, with verification of the database undertaken by all partners. HWSD was then updated in 2013 (HWSD v1.2) and in 2023 (HWSD v2.0). This updated version (HWSD v2.0) is built on the previous versions of HWSD with several improvements on (i) the data source that now includes several national soil databases, (ii) an enhanced number of soil attributes available for seven soil depth layers, instead of two in HWSD v1.2, and (iii) a common soil reference for all soil units (FAO1990 and the World Reference Base for Soil Resources). This contributes to a further harmonization of the database. The GIS raster image file is linked to the soil attribute database. The HWSD v2.0 soil attribute database provides information on the soil unit composition for each of the near 30 000 soil association mapping units. The HWSD v2.0 Viewer, provided with the database, creates this link automatically and provides direct access to the soil attribute data and the soil association information. Note: - A tutorial for accessing HWSD ver. 2.0 using R (prepared by David Rossiter, June 2023) has been added as an 'associated resource' (NOTE: Needs the SQLite version of HWSD v2 as provided below). - Soil property estimates in HWSDv2 were derived from Batjes (2016), Geoderma (https://doi.org/10.1016/j.geoderma.2016.01.034). The Harmonized World Soil Database version 2.0 (HWSD v2.0) is a unique global soil inventory providing information on the morphological, chemical and physical properties of soils at approximately 1 km resolution. Its main objective is to serve as a basis for prospective studies on agro-ecological zoning, food security and climate change. Freddy Nachtergaele Food and Agriculture Organization of the United Nations Postal code is enough Brussels 1049 Italy None Harrij van Velthuizen International Institute for Applied Systems Analysis Schloss Laxenburg Laxenburg A-2361 Austria None Luc Verelst International Institute for Applied Systems None Dave Wiberg International Institute for Applied Systems None Matieu Henry Food and Agriculture Organization of the United Nations Matieu.Henry@fao.org Federica Chiozza Food and Agriculture Organization of the United Nations None Yusuf Yigini Food and Agriculture Organization of the United Nations None Ece Aksoy European Commission - Joint Research Centre None Niels H. Batjes ISRIC - World Soil Information None Enoch Boateng Food and Agriculture Organization of the United Nations None Günther Fischer International Institute for Applied Systems Analysis None Arwyn Jones European Commission - Joint Research Centre None Luc Monanarella European Commission - Joint Research Centre None Xuezheng Shi, Chinese Academy of Sciences None Sylvia Tramberend International Institute for Applied Systems None None International Institute for Applied System None None Food and Agriculture Organization of the United Nations publications-sales@fao.org https://data.isric.org/geonetwork/srv/api/records/54aebf11-ec73-4ff8-bf6c-ecff4b0725ea/attachments/HWSDv2_map.JPG soil profiles Soil science Stratum Global Region Attribution-NonCommercial-ShareAlike 3.0 International (CC BY-NC-SA 3.0), https://creativecommons.org/licenses/by-nc-sa/4.0/ 30 geoscientificInformation 2008-01-01 2023-02-01 -180.00 180.00 -60.00 90.00 HWSD v2 v2 Matieu Henry FAO publications-sales@fao.org https://data.apps.fao.org/static/downloads/HWSD/hwsd2_setup_20221216.exe WWW:LINK-1.0-http--related Download data and viewer https://hqfao.maps.arcgis.com/apps/dashboards/ab43f3f516364e77998f0c0abf655571 WWW:LINK-1.0-http--related HWSD V.2 Web viewer https://gaez.fao.org/pages/hwsd WWW:LINK-1.0-http--related Project webpage https://doi.org/10.4060/cc3823en WWW:LINK-1.0-http--link Technical Report and Instructions HWSD v2 - Technical Report and Instructions https://s3.eu-west-1.amazonaws.com/data.gaezdev.aws.fao.org/HWSD/HWSD2_DB.zip WWW:DOWNLOAD-1.0-http--download Download HWSD v2 database Download database (.mdb) https://www.isric.org/sites/default/files/R_HWSD2.pdf WWW:LINK-1.0-http--link Processing HWSD v2 in R (tutorial) Technical note Processing the Harmonized World Soil Database (Version 2.0) in R, by David Rossiter https://www.isric.org/sites/default/files/HWSD2.sqlite WWW:LINK-1.0-http--link HWSDv2 SQLite data set (accompanies HWSD v2 in R tutorial) This is an SQLite version of HWSD ver. 2.0 for use with the tutorial prepared by David Rossiter. https://doi.org/10.1016/j.geoderma.2016.01.034 WWW:LINK-1.0-http--link Harmonized soil property values for broad-scale modelling (WISE30sec) This study describes how the analytical data considered on HWSDv2 were derived from the WISE database Version 2.0 supersedes Version 1.2