Variation in soil strength, bulk density and gravel concentration along a toposequence in Abeokuta, south-western Nigeria.(Report) From: Australian Journal of Soil Research | Date: December 1, 2007| Author: Adekunle, I.O.; Adesodun, J.K.; Dada, P.O.; Olowokere, F.A.; Salako, F.K. | COPYRIGHT 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.Copyright information

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 (<2 mm) ([[rho].sub.f]) bulk dens...