Tortuosity of an unsaturated sandy soil estimated using gas diffusion and bulk soil electrical conductivity: Comparing analogy-based models and lattice-Boltzmann simulations

In this study, fitted tortuosity parameter values of analogy-based models describing the gas diffusion coefficient and bulk soil electrical conductivity (ion diffusion) of a sandy soil are compared. Gas diffusion in unsaturated soil is most affected by connectivity in contrast to electrical conducti...

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Veröffentlicht in:	Soil Science Society of America journal 2001-11, Vol.65 (6), p.1577-1584
Hauptverfasser:	WEERTS, A. H, KANDHAI, D, BOUTEN, W, SLOOT, P. M. A
Format:	Artikel
Sprache:	eng
Schlagworte:	Agronomy. Soil science and plant productions Biological and medical sciences Diffusion coefficient Earth sciences Earth, ocean, space Exact sciences and technology Fundamental and applied biological sciences. Psychology Gases Ions Physical properties Physics, chemistry, biochemistry and biology of agricultural and forest soils Sandy soils Simulation Soil conductivity Soil science Soils Structure, texture, density, mechanical behavior. Heat and gas exchanges Surficial geology Water and solute dynamics
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Beschreibung
Zusammenfassung:	In this study, fitted tortuosity parameter values of analogy-based models describing the gas diffusion coefficient and bulk soil electrical conductivity (ion diffusion) of a sandy soil are compared. Gas diffusion in unsaturated soil is most affected by connectivity in contrast to electrical conductivity that is among other factors primarily determined by tortuosity.
ISSN:	0361-5995 1435-0661
DOI:	10.2136/sssaj2001.1577