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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.
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
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
Coffee harvest in Ethiopia. Coffee, which originated in Ethiopia, is the largest foreign exchange earner. Agriculture accounted for 50% of GDP, 83.9% of exports, and 80% of the labor force in 2006 and 2007, compared to 44.9%, 76.9% and 80% in 2002–2003, and agriculture remains the Ethiopian economy's most important sector. [7]
The soils of the Kilte Awula’ilo woreda (district) in Tigray, Ethiopia reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively low temperatures, the presence of a wide depression at the foot of the Atsbi horst and steep slopes. Outstanding features in the soilscape are the wide ancient fluvial deposits, the ...
An Alisol is a Reference Soil Group of the World Reference Base for Soil Resources (WRB). [1] Alisols have an argic horizon, which has a high cation exchange capacity. In the subsoil, the base saturation is low. There exist mixed forms, for example 'Stagnic Alisol', that are mainly Alisol, but also contain components that are found in Stagnosols.