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Gamma-ray computed tomography to evaluate changes in the structure of a clayey soil due to agricultural traffic

Luiz Fernando Pires
2011 Acta Scientiarum: Agronomy  

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A first generation gamma-ray computed tomography (CT) equipped with a 137 Cs source was used to investigate changes in soil structure due to agricultural machinery traffic. Core samples with volume of 55 cm 3 were collected at the surface (0-10 cm) of a Brazilian clayey soil. Significant alterations in soil structure occurred after two passages of tractor wheels, with important decreases in soil porosity. CT data allowed a continuous analysis of soil bulk density and also soil porosity
more » ... ion for 1.25 and 1.20 mm layers, which cannot be provided by traditional methods commonly used in soil physics.
doi:10.4025/actasciagron.v33i3.4727 fatcat:lopvzygryrbr3gk5pqjxvncufu
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Luiz Fernando Pires. "Gamma-ray computed tomography to evaluate changes in the structure of a clayey soil due to agricultural traffic." Acta Scientiarum: Agronomy 33.3 (2011)