View of a part of the HWSD obtained with the HWSD viewer (see references).
Data are available via
This soil type data set we are referring to here is based on the HWSD. "The Land Use Change and Agricultural Program" (LUC) of the "International Institute for Applied System Analysis" (IIASA) and the "Food and Agrigultural Organization of the United Nations" (FAO) have developed a new substantial "Harmonized World Soil Database" (HWSD). It refers to a 30 arc-sec raster database which presents the global soil classes and their occurrence and distribution on the earthʻs surface.
The raster database contains more than 15000 different soil mapping units and combines existing regional and national updates of soil information worldwide (SOTER, ESD, Soil Map of China, WISE) with the information within the 1:5,000,000 scale FAO-UNESCO "Soil Map of the World" (FAO, 19711981).
The resulting database consists of 21600 rows and 43200 columns, which are linked to harmonized soil property data. This standardised texture allows the linkage of attribute data to the raster data to display or query certain soil units and their parameters.
The soil unit symbols refer to the "World Reference Base of Soil Resources" (WRB), the classification system that was developed in the context of the "Soil Map of the World".
We refer to the HWSD data portal for a list of parameters (from Terrain, Land-Cover and Soil Quality) .
Period and temporal resolution:
Coverage and spatial resolution:
The reliabilty of the given information is variable. The areas covered by the SOTER database are the most reliable (Central and Southern Africa, Latin America, the Caribbean and Central and Eastern Europe), whereas data based on the FAO-UNESCO Soil Map of the World are considered less reliable (North America, Australia, West Africa and South Asia). The soils are classified according to the "World Reference Base for Soil Resources" (WRB). This worldwide reference base works as a global communication medium and was developed for the first FAO-UNESCO Soil Map of the World in 1988. Whilst it realised global communication a lot of details from regional classification systems were lost and a definite translation to, e.g. German soil denotations, is not possible.
Viale delle Terme di Caracalla
https://data.isric.org/geonetwork/srv/eng/catalog.search#/home (search for HWSD and select respective entry)
Upon using this data please cite as follows:
Fischer, G., F. Nachtergaele, S. Prieler, H.T. van Velthuizen, L. Verelst, D. Wiberg, 2008. Global Agro-ecological Zones Assessment for Agriculture (GAEZ 2008). IIASA, Laxenburg, Austria and FAO, Rome, Italy.
If you need a licence you might try here.