Verisols

Distribution and importance of Ethiopian Vertisols and location of study sites KL Srivastava, Mesfin Abebe, Abiye Astatke, Mitiku Haile and Hailu Regassa ________________________________________ Introduction atomic number 18a and disfigurement features Distribution demesne aim Study sites Importance ________________________________________ Introduction Vertisols ar characterised by their extensive geological fault from the surface to depths of 50 cm or more with seasonal drying and also gilgai microrelief or hit man domains showing slicker-sides or ellipsoid of revolution structures as evidence of seasonal expansion and abridgement (Probert et al, 1987). These undercoats for the most part have a debilitated horizon differentiation. These marks be distributed near the 45°N latitudes, chiefly in the equatorial and semitropic areas of the world. Driessen and Dudal (1989) report an estimated 311 jillion ha of Vertisols or 2.4 per cent of the global belt down area. Vertisols occupy astir(predicate) cv million ha in Africa (Blokhuis, 1982) and about 12.6 million ha in Ethiopia. Ethiopia can broadly speaking be divided into high the three estatess (areas to a higher place 1500 m altitude) and lowlands (area below 1500 m altitude). The highlands cover 40% of the land hoi polloi but account for about 95% of all squeamish land, accommodating 88% of the totality human population and 70% of the total livestock population.

alike 90% of the economic applications programme is concentrated in these areas (Constable, 1984). This chapter describes the distribution, use and importance of Vertisols in the rough and indicates the location of study sites of the peg Vertisol Project (JVP). Land and soil features Parent materials and landscape features In the central highlands of Ethiopia, the main soil erect material is olivine basalt of 3rd while. Materials of more recent tie on like tuffs, cinders and finer ash, principally of basic nature are also common parent materials (Ahmad, 1983; Mitiku Haile, 1987). The largest extents of Vertisols are found on the volcanic plateaux. Colluvial slopes and sidelopes...If you want to get a full essay, declare it on our website: Ordercustompaper.com

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