(Article of periodic en Anglais - 2010)

Document title

Measuring and modelling the actual energy involved in aggregate breakdown

Authors(s) and Affiliation(s)

ZHU Z.L. (1 2) ; FIELD D.J. (2) ; MINASBY B. (2) ;
(1) College of Mechanical and Electronic Engineering, Northwest Univ., Shaanxi, Yangling, CHINE
(2) Fac. of Agriculture, Food and Natural Resources, Univ., Sydney, AUSTRALIE


This paper further develops the concept of establishing an aggregate hierarchy by recognising that aggregate breakdown may result in the redistribution of smaller particles throughout any arbitrarily-selected set of soil particle-size intervals and, the dynamics of particle-size redistribution can be described as a function of dispersive energy. To achieve this, soil samples representing Vertisols and Ferrasols are assessed by simultaneously modelling the dynamics of aggregate breakdown in a range of soil particle-sizes (<2μm to 2000 μm) as the increasing dispersive energy of aggregates by ultrasonics. Surface samples from the top 300 mm of soil from 5 sites throughout New South Wales, Australia, where collected for this study.


Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2010, vol. 82, no1 [pp. 53-60]

Bibliographic references : 30 ref.

Collation : 4 fig., 1 tabl.



INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2010.04.009

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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