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University of Gent (1992)

Soil physical and chemical characteristics of some highly erodible soils in the Nyakach area Kisumu District, Kenya

Waruru, Bernard Kariuki

Titre : Soil physical and chemical characteristics of some highly erodible soils in the Nyakach area Kisumu District, Kenya

Auteur : Waruru, Bernard Kariuki

Université de soutenance : University of Gent

Grade : Master of Science (MS) in Eremology 1992

Résumé
Selected physical and chemical soil data from profiles on a transect along a gully channel have been used to characterise soils that are highly (severely) eroded. Gullies, gully phenomena and soil susceptibility to gully erosion has been elaborated on the basis of dynamic and intrinsic soil properties especially of the subsurface horizons. Detailed field description of a typical gully morphology has provided an insight to the disposition of the gullies in the study area and the factors that have been responsible for their development and advancement. Topographic and surface condition variables, soil profile (gully cut) description were documented for each site. Standardised and non-standardised laboratory techniques were used to determine physical and chemical properties of the soils. The analyses and determinations aimed at characterisation of the soils for the purposes of degradation assessment albeit implicitly. Soil properties viz. structure (aggregation) , permeability, erodibility, soil moisture and base status and their corresponding indices have been used to explain the rather complex relations between cause and effect in soil erosion in the study area.

Sujets : Soils/Soil erosion/Nyakach, Kisumu District ;

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Page publiée le 16 janvier 2017, mise à jour le 26 décembre 2019