Preferential flow in sandy loam soils as affected by irrigation intensity

Gjettermann, Birgitte; Nielsen, Kristian Hvidtfelt; Petersen, Claus Leth; Jensen, H. E.; Hansen, Søren

doi:10.1016/s0933-3630(97)00001-9

Cited by 83 publications

(56 citation statements)

References 18 publications

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“…This was also reported by Gjettermann et al (1997) who studied preferential flow mechanisms in the field as affected by irrigation intensity and by who compared soils with respect to their susceptibility of soils to preferential flow of water. Kim et al (2004) investigated the effect of texture and structure on the infiltration pattern at three field soils and verified that macropores (cracks and veins) and plant roots induced the preferential flow in the studied soils.…”

Section: Resultssupporting

confidence: 58%

“…Soil structure and preferential flow are thought to be highly related, but quantification of this relationship has remained problematic (Vervoort et al, 1999). Preferential flow or deep penetration of water into the soil profile take place through macropores (Gjettermann et al, 1997) and through cracks or fissures (Bouma, 1991). In this context the soil mechanical strength is an important soil parameter that affects root growth and water movement (Bradford, 1986).…”

Section: Introductionmentioning

confidence: 99%

“…Dye tracing has been used to visualize flow paths and to stain the solutes transport behaviour, ranging from qualitative descriptions of water flow to the quantitative interpretation of the associated pore types and distributions (Beven and Germann, 1982;Gjettermann et al, 1997;Kasteel et al, 2002;Kim et al, 2006). One major disadvantage of using dyes to study flow paths of water is that the sampling, i.e., excavation of soil, is destructive and experimental results cannot be repeated at the same location.…”

Section: Introductionmentioning

confidence: 99%

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Dye tracer and morphophysical properties to observe water flow in a Gleyic Luvisol

Salvador

Köhne

Köhne³

et al. 2011

Sci. agric. (Piracicaba, Braz.)

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The understanding of the preferential water flow and solute transport is important with regard to losses of nutrients and pesticides that affect the quality of the groundwater or surface water resources. Experiments using the brilliant blue dye tracer, a tension infiltrometer (TI) and a double square infiltrometer (DI) were carried out in the experimental field site located around 15 km southeast of the city of Rostock (North-Eastern Germany) on arable land in a Pleistocene lowland landscape where corn (Zea mays L.) and barley (Hordeum spp.) had been cultivated. One day after dye the infiltration, a pit was dug and vertical profiles were prepared in the TI and DI sites to assess the dye pathways in the subsoil of a Gleyic Luvisol. We wanted to examine if the mottled red and white (bleached) colour-pattern of the Gleyic Luvisol subsoil resulting from temporally stagnant water could be related to flow paths as visualized by dye tracing and if the soil colour could be related to other physical soil properties. Biogenic soil structures were the main transport routes conducting water and solutes into great depth in short time. These pathways had lower bulk density and less cone resistance than the adjacent red or white (bleached) areas of the Gleyic Luvisol subsoil. The red areas were involved in transport because their water contents increased after as compared to before infiltration. However, the measured physical soil properties did not differ between white and red areas. We assume that red areas participate in transport at least by imbibing water from the adjacent biogenic flow paths. Key words: soil water content, bulk density, cone resistance Fluxo de água em um Gleyic Luvisol usando traçador e sua relação com as propriedades físicas e morfológicas do solo RESUMO: O fluxo preferencial de água e o transporte de solutos relacionam-se com perdas de nutrientes e pesticidas e afetam a qualidade de águas subterrâneas. Foram realizados experimentos utilizando o traçador Brilhante Blue, um infiltrômetro de tensão (TI) e um infiltrômetro com "duplos quadrados" (DI) num campo experimental localizado a cerca de 15 km a sudeste da cidade de Rostock (nordeste da Alemanha) num solo onde cultiva-se milho (Zea mays L.) e cevada (Hordeum spp.). Um dia após a infiltração do traçador, perfis de solo foram escavados no local do TI e do DI para observar o fluxo da água deixado pelo do traçador no solo. O objetivo era verificar se os mosqueados vermelhos e partes esbranquiçadas cor-padrão do subsolo do Gleyic Luvisol, resultante da água estagnada temporariamente, poderia estar relacionada ao fluxo da água visualizados pelo traçador e se a cor do solo poderia estar relacionada a outras propriedades físicas do solo. A estrutura biogênica do solo foi a principal rota de transporte conduzindo água e solutos em profundidade e em menor tempo. Esses caminhos tiveram menor densidade do solo e menor resistência do que as áreas vermelhas e esbranquiçadas adjacentes do subsolo do Gleyic Luvisol. Áreas vermelhas foram relacionadas com...

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Section: Resultssupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dye tracer and morphophysical properties to observe water flow in a Gleyic Luvisol

Salvador

Köhne

Köhne³

et al. 2011

Sci. agric. (Piracicaba, Braz.)

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“…Com uso do programa Corel Draw 12, as fotografias foram corrigidas, digitalizadas e binarizadas, sendo atribuídos valores de 0 para locais não tingidos pelo traçador e de 1 para os locais com a presença do mesmo. A partir da quantificação das porções tingidas em relação à área total de cada perfil foram também elaborados perfis de distribuição areal do traçador que, de acordo com Gjettermann et al (1997), permitem avaliar a variabilidade da percolação entre as áreas ensaiadas e os padrões de fluxo.…”

Section: Methodsunclassified

Uso de Traçadores na Avaliação da Infiltração em Solos de Áreas Gnáissicas do Complexo do Bação, MG.

Morais¹,

Bacellar²

2008

Rev. Bras. Geomorfol.

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ResumoO presente trabalho objetivou avaliar a infiltração em solos de áreas gnáissicas da região do Complexo Metamórfico Bação (MG). Procurou-se, também, relacionar os padrões de infiltração com propriedades físicas e hídricas dos solos levantadas em estudos anteriores. Para tal, foram realizados ensaios de infiltração com o traçador Brilliant Blue FCF e com cloreto de sódio. Os padrões de fluxo observados variam de homogêneo através da matriz (fluxo em pistão) a fluxo por macroporos com média interação. Estes resultados indicam uma permeabilidade significativa da matriz, mas com forte condicionamento por macroporos verticais, sobretudo por raízes de gramíneas no horizonte A. Biocavidades (de formigas e cupins) são também importantes, especialmente no horizonte B. Confirmou-se que a infiltração é mais significativa nas convexidades de relevo que nas concavidades. Os métodos utilizados se mostraram promissores para avaliação da velocidade e forma de fluxos pela zona não saturada destes solos tropicais.Palavras-chave: infiltração; macroporos; traçador; padrões de fluxo em solo. AbstractThis paper aims to evaluate the infiltration in soils from a region with gneissic rocks of the Bação Metamorphic Complex (MG). We intend either to relate the infiltration pattern with hydraulic and physical soil properties, previously presented in other papers. Infiltration essays were carried out with the dye Brilliant Blue FCF and with sodium chloride. The flow patterns ranged from homogeneous through the soil matrix (piston flow) to macropore flow with medium interaction. The data show a large matrix permeability, strongly conditioned by vertical macropores, especially by grass roots in the A horizon. Biocavities (by ants and termites) are equally important, especially in the B horizon. Previous studies were confirmed, showing that the infiltration is higher on noses than on hollows. The used methods can be considered reliable to evaluate the velocity and flow pattern in the unsaturated zone of these tropical soils.

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“…Preferential flow generally results in fast contaminant transport (Gjettermann et al 1997;Morris and Mooney 2004;Reichenberger et al 2002), and thus greatly increases the risk of groundwater contamination (Goulding et al 2000;Jarvis 2000). Recent research results show that the preferential flow and solute transport in the unsaturated soil display fractal properties (e.g., Glass 1993;Öhrström et al 2002;Persson et al 2001;Smith and Zhang 2001).…”

Section: Introductionmentioning

confidence: 99%

Modeling preferential water flow and solute transport in unsaturated soil using the active region model

et al. 2010

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Preferential flow in sandy loam soils as affected by irrigation intensity

Cited by 83 publications

References 18 publications

Dye tracer and morphophysical properties to observe water flow in a Gleyic Luvisol

Dye tracer and morphophysical properties to observe water flow in a Gleyic Luvisol

Uso de Traçadores na Avaliação da Infiltração em Solos de Áreas Gnáissicas do Complexo do Bação, MG.

Modeling preferential water flow and solute transport in unsaturated soil using the active region model

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