We performed a systematic mapping of validation methods used in digital soil (DSM), order to gain an overview current practices and make recommendations for future publications on DSM studies. A search screening procedure, largely following the RepOrting standards Systematic Evidence Syntheses (ROSES) protocol, was carried out. It yielded database 188 peer-reviewed studies from past two decades...

employing recent technological advances in surveying and mapping soil salinity is a step forward in controlling saline soils. the aim of this study was to map the topsoil salinity, the depth of 0-5 cm, using different methods within the environmental context of the area around tashk & bakhtegan lake, with the area of 8062 ha, that in this region soil salinity appears to be a major threat to agr...

[1] The hydrologic response of upland watersheds is strongly controlled by soil (regolith) thickness. Despite the need to quantify soil thickness for input into hydrologic models, there is currently no widely used, geomorphically based method for doing so. In this paper we describe and illustrate a new method for predictive mapping of soil thicknesses using high-resolution topographic data, num...

Little effort has been made to link soil mapping and soil data density to a nation’s welfare. Soil map density in 31 European countries and 44 low and middle income countries is linked to Gross Domestic Product (GDP) per capita and the number of soil scientists per country. National coverage of exploratory soil maps (>1:250 000) is generally higher in the poorest countries and decreases with in...