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Research Journal of Environmental Sciences
  Year: 2007 | Volume: 1 | Issue: 2 | Page No.: 71-76
DOI: 10.3923/rjes.2007.71.76
 
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Pedology of Near Gully Sites and its Implications on the Erodibility of Soils in Central South Eastern Nigeria

E.U. Onweremadu

Abstract:
Near gully sites in southeastern Nigeria were investigated from April to July 2005 to ascertain their erodibility potentials. Soils were sandy and of low Silt-Clay Ratio (SCR) but were eroding. Exchangeable Sodium Percentage (ESP), carbon content, silt, clay and Calcium-Magnesium Ratio (CMR) tended to influence erodibility of these soils. They correlated significantly with Dispersion Ratio (DR) (p≤0.05). Exchangeable sodium percentage was higher in pedons near gully sites (ESP = 1.4-5.1) compared with results of non-gully site (ESP = 0.1-0.3). Calcium-magnesium ratio (CMR) was generally narrow (0.3-3.0). Organic matter content was very low in pedons near gully sites (less than 11%). Cation exchange capacity was lower in sites affected by gullying (CEC = 3.50-7.00 cmol kg-1). Low base saturation (less than 40%) shows very strong leaching of basic cations in the study area.
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How to cite this article:

E.U. Onweremadu , 2007. Pedology of Near Gully Sites and its Implications on the Erodibility of Soils in Central South Eastern Nigeria. Research Journal of Environmental Sciences, 1: 71-76.

DOI: 10.3923/rjes.2007.71.76

URL: https://scialert.net/abstract/?doi=rjes.2007.71.76

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