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The World Reference Base for Soil Resources (WRB) is an international soil classification system for naming soils and creating legends for soil maps. The currently valid version is the fourth edition 2022. [ 1 ]
ISRIC is a regular member of the ISC World Data System, and is known as WDC-Soils since 1989. [4] ISRIC's main open access databases include WoSIS, [ 5 ] a large database of quality-assessed and standardised soil profile data for the world, that has been used for producing soil property maps at 250 m resolution, with quantified uncertainty,for ...
SoilGrids1km is a collection of updatable soil property and class maps of the world at a resolution of 1 km produced using state-of-the-art model-based statistical methods. Presents estimates (means and 90% confidence intervals) for pH, texture (sa, si, cl), organic carbon and more for 6 depth layers up to 2 m depth. Harmonized World Soil Database
The EuDASM is a common platform established by Joint Research Centre in Italy of the European Commission and the International Soil Reference and Information Centre(ISRIC) of Wageningen University in The Netherlands to store soil and related maps in digital format and to provide free access to the global community (Researchers, University ...
World Soil Museum, ISRIC - World Soil Information, Wageningen campus, The Netherlands. Excavating a soil monolith (Kalimantan, Indonesia) The World Soil Museum (WSM) displays physical examples of soil profiles representing major soil types of the world, from the volcanic ash soils from Indonesia to the red, strongly weathered soils from the Amazon region.
In this context, soil maps are only visualizations of the soil resource inventories commonly stored in a Soil Information System (SIS), of which the major part is a Soil Geographical Database. A Soil Information System is basically a systematic collection of complete (values of the target soil variables available for the whole area of interest ...
The FAO soil map was intended for mapping soils at a continental scale but not at local scale. In 1988 the FAO published a Revised Legend with 153 Soil Units forming 28 Major Soil Groupings. It serves as basis for the Harmonized World Soil Database. In 1998 this system was replaced by the World Reference Base for Soil Resources.
Lixisols are a Reference Soil Group of the World Reference Base for Soil Resources (WRB). [1] They are soils with subsurface accumulation of low activity clays and high base saturation. They develop under intensive tropical weathering conditions and subhumid to semi-arid climate. [2] Soil profile of a Lixisol