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Evaluation of Electrical Resistivity in a Tropical Sandy Soil Compacted
(2014)
The utilization of electrical resistivity is a technique that leads to improve the sampling of environmental works. The bulk resistivity considers the three phases of soil mechanics theory and their intervening factors ...
A fully coupled particle method for dynamic analysis of saturated soil
(Springer, 2020-10)
Among other numerical issues, it is well known that the finite element method (FEM) lacks objectivity in reproducing high deformation rates due to extreme external actions. In geotechnical applications, the coupling of ...
Sistema pedológico em um ambiente antropizado da depressão central do RS
(Universidade Federal de Santa MariaBRAgronomiaUFSMPrograma de Pós-Graduação em Ciência do Solo, 2009-08-28)
The present work was accomplished in a slope with a pedological system composed of Red Argisol/Gleysol, in a pasture area located in an unit of agricultural production in the municipal district of Santa Maria - RS. It aimed ...
Movimento de água e resistência à penetração em um Latossolo Vermelho distrófico de cerrado, sob diferentes usos e manejos
(Departamento de Engenharia Agrícola - UFCG, 2003-04)
This study was conducted at Experimental Station of Faculdade de Engenharia - UNESP, Ilha Solteira County, in Mato Grosso do Sul State, Brazil. The aim was to evaluate the water movement modifications of a Red Latosol under ...
Different responses in bulk density and saturated hydraulic conductivity to soil deformation by logging machinery on a Ferralsol under native forest
(Blackwell Publishing, 2007-09-01)
Ferralsols have high structural stability, although structural degradation has been observed to result from forest to tillage or pasture conversion. An experimental series of forest skidder passes in an east Amazonian ...
Different responses in bulk density and saturated hydraulic conductivity to soil deformation by logging machinery on a Ferralsol under native forest
(Blackwell Publishing, 2007-09-01)
Ferralsols have high structural stability, although structural degradation has been observed to result from forest to tillage or pasture conversion. An experimental series of forest skidder passes in an east Amazonian ...
Degree of phosphate saturation in highly weathered tropical soils
(Elsevier B.V., 2018-07-30)
The degree of phosphate saturation (DPS) is an indicator for P-saturation, which is of assistance to the prediction of P losses and potential eutrophication of surface water. The scaling factor (alpha) estimates the ...
Hydraulic conductivity in a soil cultivated with wheat-rapeseed rotation under two tillage systems
(Springer, 2020)
To evaluate the effect of tractor transits and tillage system operations on soil pore functioning in a Haploxeroll, soil physical properties were measured on a field located in central Chile. The study site was divided ...
A versatile mathematical approach for environmental geomechanic modelling based on stress state decomposition
(Elsevier Science Inc, 2015-11)
The main goal of the present paper is to present a mathematical framework for modelling multi-phase non-saturated soil consolidation with pollutant transport based on stress state configurations with special emphasis in ...
Fractal concepts in relation to soil water diffusivity
(Williams & Wilkins, 1997-11-01)
Fractal geometry would appear to offer promise for new insight on water transport in unsaturated soils, This study was conducted to evaluate possible fractal influence on soil water diffusivity, and/or the relationships ...