Search results
Results from the WOW.Com Content Network
The 106 Soil Units form 26 Soil Groups. The FAO soil map was a very simple classification system with units very broad, but was the first truly international system, and most soils could be accommodated on the basis of their field descriptions. The FAO soil map was intended for mapping soils at a continental scale but not at local scale.
From 1971 to 1981, the Food and Agriculture Organization (FAO) and UNESCO published the Soil Map of the World, 10 volumes, scale 1 : 5 M). [2] The Legend for this map, published in 1974 under the leadership of Rudi Dudal, became the FAO soil classification. Many ideas from national soil classification systems were brought together in this ...
Leptosol in Agbe (Ethiopia) A Leptosol in the World Reference Base for Soil Resources (WRB) is a very shallow soil over continuous rock or a deeper soil that is extremely rich in coarse fragments (gravelly and/or stony). Leptosols cover approximately 1.7 billion hectares of the Earth's surface.
Calcaric Cambisol (Humic) profile in Des'a forest in Ethiopia. A Cambisol in the World Reference Base for Soil Resources (WRB) [1] is a soil in the beginning of soil formation. The horizon differentiation is weak. This is evident from weak, mostly brownish discolouration and/or structure formation in the soil profile. Distribution of Cambisols
Such maps are typically richer in context and show higher spatial detail, yet are not necessarily more accurate than traditional soil maps. Soil maps produced using (geo)statistical technique can also include an estimate of the model uncertainty. [3] An example of a traditional soil map showing soil mapping units, described soil profiles and ...
The soil maps of Ethiopia, EuDASM; Ethiopia. The World Factbook. Central Intelligence Agency. The mapping of Ethiopia Ethiopia-United States Mapping Mission web site; ETHIOPIA TOPOGRAPHIC MAPS Archived 18 February 2012 at the Wayback Machine East View Cartographic web site; Ethiopia's government mapping agency, Ethiopian Mapping Authority web site
Fluvisol profile along Agula'e River, Ethiopia Distribution of Fluvisols. A fluvisol in the World Reference Base for Soil Resources (WRB) [1] is a genetically young soil in alluvial deposits. Apart from river sediments, they also occur in lacustrine and marine deposits. [2] Fluvisols correlate with fluvents and fluvaquents of the USDA soil ...
Calcaric Solimovic Regosol (Humic) in Degua Tembien, Ethiopia. A Regosol in the World Reference Base for Soil Resources (WRB) [1] is very weakly developed mineral soil in unconsolidated materials. Regosols are extensive in eroding lands, in particular in arid and semi-arid areas and in mountain regions.