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Article: Variation in soil strength, bulk density and gravel concentration along a toposequence in Abeokuta, south-western Nigeria.(Report)
- Article from:
- Australian Journal of Soil Research
- Article date:
- December 1, 2007
- Author:
CopyrightCOPYRIGHT 2007 CSIRO Publishing. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract. This study was carried out at Abeokuta, south-western Nigeria, to understand the variation in soil strength, gravel distribution, and bulk density along a toposequence. In 2003, a 120-m transect on a fallowed land was sampled at every 1 m for topsoil bulk density measurement by excavation (3278 [cm.sup.3] pits), while soil strength was measured at every soil depth increment of 25 mm to 0.50m depth. Total dry ([[rho].sub.t]) and fine earth (
16 mm. In 2006, four 100-m transects were considered; two each on adjacent fallowed and cultivated lands. Soil strength and water content were measured. The fine earth fraction of topsoil ranged from 62 to 90.6%. Gravel in the ...