INV SUPERIOR JUBILADO
TARZIA domingo alberto
artículos
Título:
A free boundary model for anaerobiosis in saturated soil aggregates
Autor/es:
A.M. GONZALEZ J.C. REGINATO D.A. TARZIA
Revista:
SOIL SCIENCE
Editorial:
LIPPINCOTT WILLIAMS & WILKINS
Referencias:
Año: 2008 vol. 173 p. 758 - 767
ISSN:
0038-075X
Resumen:
A free boundary model for the diffusion of oxygen in spherical aggregates of soils with simultaneous absorption at a constant, linear and nonlinear rate is formulated. The problems are solved by a modification of the Constrained Integral Method. The obtained results are consistent with those due to earlier authors who have solved the problems using fixed domains. The results obtained by our model for diffusion with simultaneous nonlinear absorption over predicts the experimental values improving the Sierra et al.s under predict results in fixed domains. Our model represents an alternative and more realistic method to study and to generalize the present models.
