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(Article of periodic en Anglais - 2014)

Document title

Development of pedotransfer functions for coastal plain soils using terrain attributes

Authors(s) and Affiliation(s)

OBI J.C. (1) ; OGBAN P.I. (1) ; ITUEN U.J. (2) ; UDOH B.T. (1) ;
(1) Dept. of Soil Science and Land Resources Management, Univ., Uyo, NIGERIA
(2) Dept. of Geography and Regional Planning, Univ., Uyo, NIGERIA

Abstract

This study investigated the influence of terrain attributes and soil water content on soil genesis and developed pedotransfer functions (PTFs) for the coastal plain soils. Particle size fractions, bulk density, hydraulic conductivity, organic carbon, field capacity water content (FWC), permanent wilting point (PWP), and available water content (AWC) were determined. Elevation, slope, aspect, curvatures, flow direction and hill shade, compound topographic index (CTI) and stream power index (SPI) were derived from a digital elevation model. The data were analyzed using correlation, principal component and stepwise multiple regression. the results indicated that : Particle size fractions are major determinants of variability; Overland flow and ordering of recently deposited materials influence pedogenesis. Large quantities of clay move downwards in a more lateral than vertical direction. Monotonously flat terrain inhibited collision and/or abrasion of sand particles

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2014, vol. 123 [pp. 252-262]

Bibliographic references : 1 p.

Collation : 2 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2014.08.015

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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