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Revista Ciencias Técnicas Agropecuarias

versão On-line ISSN 2071-0054


ALONSO GONZALEZ, María T; LOPEZ SEIJAS, Teresa  e  RUIZ, María Elena. A theoretical approach modeling solute transport in soil. Rev Cie Téc Agr [online]. 2010, vol.19, n.3, pp.28-34. ISSN 2071-0054.

At the present time exist great variety of models able to help in the interpretation of the processes of water and solute transport in the agriculture. Presently work theoretical focuses are exposed that base the transport of pollutants in soils, which are indispensable for the understanding and implementation of tools that allow an efficient approach to the complex reality of the system water-plant-soil. In this first part leaves the interactions of the solutes within the profile of soil, specifically the transport with and without molecular diffusion. As well as, the mathematical pattern of the displacement in r epresentative elementary volume , making use of studies summarized by Pfannkuch in 1962. in which it related the value of D a to the Peclet number of molecular diffusion. This way gived the bases to open the angular stone of the solute transport in porous media, the commonly well-known Equation of Convection-Dispersion.

Palavras-chave : contamination; water transport; convection-dispersion; lixiviation.

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