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vol.6 número2Nutrient deficiencies in semiarid soils. I: adjustment of a method in greenhouseVariabilidade espacial da textura e da densidade de partículas em um solo aluvial no Município de Lavras, MG índice de autoresíndice de assuntospesquisa de artigos
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Revista Brasileira de Engenharia Agrícola e Ambiental

versão impressa ISSN 1415-4366versão On-line ISSN 1807-1929


MIRANDA, Jarbas H. de  e  DUARTE, Sergio N.. A simulation model of nitrate displacement in vertical columns in a non-saturated soil. Rev. bras. eng. agríc. ambient. [online]. 2002, vol.6, n.2, pp.235-241. ISSN 1807-1929.

Intensive agriculture always aims at increased productivity, with limited or no attention dedicated to possible impacts on the environment. Therefore, the understanding of processes of solute transport in the soil contributes to reduction of leaching to the deep layers. In this connection, the present study had the objective of developing and evaluating a computational model for solute displacement simulation in the soil based on numerical solutions of differential equations describing this displacement. From the results obtained, the model presented a good agreement of nitrate concentrations as well as soil moisture profile when compared with the results obtained on a vertical column of non-saturated soil under laboratory conditions.

Palavras-chave : solute displacement; modeling; simulation; soil column.

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