Effects of agricultural machinery with high axle load on soil properties of normally managed fields

Schäfer-Landefeld, Lothar; Brandhuber, Robert; Fenner, S.; Koch, H.; Stockfisch, Nicol

doi:10.1016/s0167-1987(03)00154-5

Cited by 56 publications

(26 citation statements)

References 27 publications

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“…Este comportamiento, sin embargo, es descrito de diversas formas en la literatura científica. Por ejemplo, tanto Schäfer-Landefeld et al (2004) como Dec et al (2008) describen una fuerte reducción de la capacidad de aire y de almacenamiento de agua con el incremento de la densidad aparente de un suelo de textura franco limosa (17% arcilla). Lo contrario se observa generalmente en suelos de textura más gruesa (Arenosol), en donde una compactación significa una reducción de la porosidad de aireación en favor del almacenamiento de agua (O'Sullivan y Ball, 1993).…”

Section: Discusionunclassified

Efecto Del Cambio De Uso en La Estabilidad De La Estructura Y La Función De Los Poros De Un Andisol (Typic Hapludand) Del Sur De Chile

Dörner¹,

Dec

Peng

et al. 2009

R.C. Suelo Nutr. Veg.

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Volcanic soils in southern Chile cover approximately 60% of the arable land in the country. These soils are under a wide range of land uses from pristine systems to intensively used ones. The objective of this study was to determine the effect of the land use change on: i) the structural stability after external and internal forces, ii) the hydraulic conductivity and iii) its functional resilience. Disturbed and undisturbed soil samples were collected at 5, 20 and 40 cm depths in an Andisol (Typic Hapludand) under native forest (NF), 50 year old pasture (P50) and 1 year old pasture (P1). The water retention, shrinkage and consolidation curves, hydraulic conductivity (Ks), air permeability (Ka), organic carbon content (CO), soil texture and allophane contents were determined. The unsaturated hydraulic conductivity (Ku) was estimated according to van Genuchten (1980). Soil deformation indexes as a consequence of mechanical (COLEm) and hydraulic (COLE h ) stresses were calculated. The studied soil is subject to continuous changes in their structure as a consequence of mechanical and hydraulic stresses affecting the pore size distribution and its functionality. The magnitude of these changes decreased with the increasing intensity of the land use. The great shrinkage capacity of the soil may have consequences on its hydraulic behaviour depending on the drying intensity through the formation of cracks and preferential path flows. Finally, the soil pores are able to recover its functional integrity after compaction, which is strongly related to the presence of organic matter contents.Keywords: Andisol, structural properties, pore functions RESUMENLos suelos volcánicos del sur de Chile constituyen cerca del 60% del suelo arable del país. Estos suelos se encuentran bajo un amplio rango de usos desde sistemas prístinos hasta otros con un uso intensivo. El objetivo de este trabajo fue determinar el efecto del cambio de uso de suelo sobre: i) la estabilidad del suelo frente a presiones externas e internas; ii) la conductividad hidráulica y iii) su resiliencia funcional. Muestras disturbadas y no disturbadas de suelo fueron recolectadas a 5, 20, 40 cm de profundidad 190 Rev. Cienc. Suelo Nutr. / J. Soil. Sci. Plant Nutr. 9(3): 190-209 (2009)

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Section: Discusionunclassified

Efecto Del Cambio De Uso en La Estabilidad De La Estructura Y La Función De Los Poros De Un Andisol (Typic Hapludand) Del Sur De Chile

Dörner¹,

Dec

Peng

et al. 2009

R.C. Suelo Nutr. Veg.

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“…As alterações físicas do solo devido ao tráfego de máquinas e implementos têm sido amplamente estudadas Schäfer-Landefeld et al, 2004;Yavuscan et al, 2005;Chan et al, 2006;Schäffer et al, 2007), com destaque para os efeitos da compactação do solo sobre a produtividade das culturas.…”

Section: Introductionunclassified

“…As propriedades físicas do solo mais frequentemente utilizadas nesses estudos são a densidade, a porosidade e resistência do solo à penetração de raízes, a condutividade hidráulica e a permeabilidade do solo ao ar (Schäfer-Landefeld et al, 2004;Yavuscan et al, 2005;Sweeney et al, 2006). Outras propriedades físicas integradoras também têm sido usadas, destacando-se o intervalo hídrico ótimo (Cavalieri et al, 2004;Araujo et al, 2004;Tormena et al, 2007).…”

Section: Introductionunclassified

Influência da carga mecânica de máquina sobre propriedades físicas de um cambissolo háplico

Cavalieri

Silva

Arvidsson

et al. 2009

Rev. Bras. Ciênc. Solo

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RESUMOO objetivo deste estudo foi avaliar os efeitos de diferentes cargas mecânicas de máquinas sobre as propriedades físicas de um Cambissolo Háplico classe textural franco-arenoso/franco-argilo-arenoso. A distribuição das pressões (kPa) no solo foi detectada por sensores localizados em diferentes camadas no solo. As propriedades físicas avaliadas foram a densidade do solo (Ds) e a resistência à penetração (RP) na linha e na entrelinha da cultura da beterraba-açucareira (Beta vulgaris L.), até a profundidade de 0,30 m. Os tratamentos foram: sem pressão extra exercida pela semeadora, denominado sem compactação (SC); pressão exercida pela semeadora considerada de baixa carga (BC); pressão exercida pela semeadora considerada de alta carga (AC); e pressão exercida pelas rodas do trator usado no preparo do solo ou carga do trator (CT). Em relação à distribuição das cargas no solo, na camada de 0-0,10 m foram detectados valores de pressão no solo acima de 120 kPa, considerados muito altos. O incremento de pressão do tratamento SC para AC resultou em maiores pressões na camada de 0-0,10 m comparada à de 0,10-0,20 m, enquanto o tratamento CT resultou em maiores pressões no solo na camada de 0,10-0,20 m, em relação aos outros tratamentos. Em decorrência das cargas mecânicas aplicadas, verificou-se aumento da Ds em superfície, na sequência SC < BC < AC < CT. A RP foi maior que 2,0 MPa na camada de 0,10-0,15 m sob preparo convencional no tratamento CT. Sob preparo reduzido, a RP

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“…In the subsoil, compaction remains effective for decades, as the structure forming processes are slow and the management techniques are inefficient. Still, the extent to which the results on uniaxial soil compaction in the laboratory or those on the homogeneous compaction of experimental fields apply to normal farming is occasionally questioned (Schäfer-Landefeld et al 2004, Koch et al 2005, although many researchers validated them in situ , Richards et al 2000.…”

Section: Introductionmentioning

confidence: 99%

Macro- and microscale gaseous diffusion in a Stagnic Luvisol as affected by compaction and reduced tillage

Simojoki¹,

Fazekas-Becker²,

Horn³

2008

AFSci

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Intensification of mechanical agriculture has increased the risk for soil compaction and deformation. Simultaneously, reduced tillage practices have become popular due to energy saving and environmental concerns, as they may strengthen and improve the functioning of structured soil pore system. Soil aeration is affected by both compaction and reduced tillage through changes in soil structure and in the distribution of easily decomposable organic matter. We investigated whether a single wheeling by a 35 000 kg sugar-beet harvester in a Stagnic Luvisol derived from loess near Göttingen, Germany, influenced the gas transport properties (air permeability, gaseous macro- and microdiffusivities, oxygen diffusion rate) in the topsoil and subsoil samples, and whether the effects were different between long-term reduced tillage and mouldboard ploughing. Poor structure in the topsoil resulted in slow macro- and microscale gas transport at moisture contents near field capacity. The macrodiffusivities in the topsoil under conventional tillage were slower compared with those under conservation treatment, and soil compaction reduced the diffusivities by about half at the soil depths studied. This shows that even one pass with heavy machinery near field capacity impairs soil structure deep into the profile, and supports the view that reduced tillage improves soil structure and aeration compared with ploughing, especially in the topsoil.;

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Effects of agricultural machinery with high axle load on soil properties of normally managed fields

Cited by 56 publications

References 27 publications

Efecto Del Cambio De Uso en La Estabilidad De La Estructura Y La Función De Los Poros De Un Andisol (Typic Hapludand) Del Sur De Chile

Efecto Del Cambio De Uso en La Estabilidad De La Estructura Y La Función De Los Poros De Un Andisol (Typic Hapludand) Del Sur De Chile

Influência da carga mecânica de máquina sobre propriedades físicas de um cambissolo háplico

Macro- and microscale gaseous diffusion in a Stagnic Luvisol as affected by compaction and reduced tillage

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