Determinação da condutividade e difusividade hidráulica dos solos terra roxa estruturada e latossolo roxo através da infiltração vertical.

Carlos Roberto Appoloni; Julio Cesar Martins de Oliveira; Lorival Fante Junior; A D B  De Souza; José Martins de Oliveira Junior

doi:10.5433/1679-0375.1990v11n4p145

Determinação da condutividade e difusividade hidráulica dos solos terra roxa estruturada e latossolo roxo através da infiltração vertical.

Authors

Carlos Roberto Appoloni Universidade Estadual de Londrina
Julio Cesar Martins de Oliveira Universidade Estadual de Londrina
Lorival Fante Junior Universidade de São Paulo
A D B De Souza Universidade Estadual de Londrina
José Martins de Oliveira Junior Universidade de São Paulo

DOI:

https://doi.org/10.5433/1679-0375.1990v11n4p145

Keywords:

vertical infiltration, gamma ray attenuation, hydraulic diffusivity and conductivity.

Abstract

The hydraulic diffusivity and conductivity functions of LR and TE (levels A and B) soil samples from the Londrina-PR region were calculated by means of the moisture profile and data from the time evolution of the wet front, taken through measurements of the water infiltration in a soil column and a variational formulation of the vertical flow. The wet front data were taken in a acrylic column coupled in its base with a porous plate that permitted the water flow against the gravitational field with a suitable velocity of 0.12 cm/min. The moisture profile data were obtained by the gamma ray attenuation method, with a ⁶⁰Co source and a Nal (TL) scintillation detector. With a vertical and horizontal measurement table the moisture profile data 6 (z, t) were taken in many points of the soil column.

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Author Biographies

Carlos Roberto Appoloni, Universidade Estadual de Londrina

Departamento de Física-CCE.

Julio Cesar Martins de Oliveira, Universidade Estadual de Londrina

Bolsista do CNPq, categoria aperfeiçoamento.

Lorival Fante Junior, Universidade de São Paulo

Físico, pós-graduando no Departamento de Física Nuclear, Instituto de Física, USP, bolsista do CNPq.

A D B De Souza, Universidade Estadual de Londrina

Aluno de Graduação do Curso de Física.

José Martins de Oliveira Junior, Universidade de São Paulo

Físico, pós-graduando no Departamento de Física Nuclear, Instituto de Física, USP (SP); bolsista do CNPq.

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Published

2004-12-15

How to Cite

Appoloni, C. R., Oliveira, J. C. M. de, Junior, L. F., Souza, A. D. B. . D., & Junior, J. M. de O. (2004). Determinação da condutividade e difusividade hidráulica dos solos terra roxa estruturada e latossolo roxo através da infiltração vertical. Semina: Ciências Exatas E Tecnológicas, 11(4), 145–149. https://doi.org/10.5433/1679-0375.1990v11n4p145

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Issue

Vol. 11 No. 4 (1990)

Section

Original Article

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