Estimating effects of compaction on pore size distribution of soil aggregates by mercury porosimeter

Lipiec, Jerzy; Hajnos, M.; Świeboda, Ryszard

doi:10.1016/j.geoderma.2012.02.014

Cited by 87 publications

(47 citation statements)

References 42 publications

(49 reference statements)

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“…Soil structure, represented by solid components (aggregates) and a pore system, is considered as a main indicator of soil physical status and is related to a variety of ecological functions (Dexter, 2004;Dilkova, 2014;Horn et al, 1994;Józefaciuk, 2009;Kutílek and Jendele, 2008). Baseline values of different categories of pores and pore size distribution are used as criteria for assessing the effects of management practices (Hajnos et al, 2006;Lipiec et al, 2012). Comparative studies on the hydrophysical properties and pore structure of soils from different climatic zones (Witkowska-Walczak et al, 2015) and soils with different genesis (Dilkova, 2014;Sławiński et al, 2011) are important for understanding and predicting the ongoing changes of the soil hydrological functions.…”

Section: Introductionmentioning

confidence: 99%

Physical parameters of Fluvisols on flooded and non-flooded terraces

Kercheva

Sokołowska

Hajnos

et al. 2017

International Agrophysics

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The heterogeneity of soil physical properties of Fluvisols, lack of large pristine areas, and different moisture regimes on non-flooded and flooded terraces impede the possibility to find a soil profile which can serve as a baseline for estimating the impact of natural or anthropogenic factors on soil evolution. The aim of this study is to compare the pore size distribution of pristine Fluvisols on flooded and non-flooded terraces using the method of the soil water retention curve, mercury intrusion porosimetry, nitrogen adsorption isotherms, and water vapour sorption. The pore size distribution of humic horizons of pristine Fluvisols on the non-flooded terrace differs from pore size distribution of Fluvisols on the flooded terrace. The peaks of textural and structural pores are higher in the humic horizons under more humid conditions. The structural characteristics of subsoil horizons depend on soil texture and evolution stage. The peaks of textural pores at about 1 mm diminish with lowering of the soil organic content. Structureless horizons are characterized by uni-modal pore size distribution. Although the content of structural pores of the subsoil horizons of Fluvisols on the non-flooded terrace is low, these pores are represented by biopores, as the coefficient of filtration is moderately high. The difference between non-flooded and flooded profiles is well expressed by the available water storage, volume and mean radius of pores, obtained by mercury intrusion porosimetry and water desorption, which are higher in the surface horizons of frequently flooded Fluvisols.

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Section: Introductionmentioning

confidence: 99%

Physical parameters of Fluvisols on flooded and non-flooded terraces

Kercheva

Sokołowska

Hajnos

et al. 2017

International Agrophysics

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“…Vehicular compaction of soil beyond some threshold value can lead to over-consolidation of soil with irreversibly reduced pore size distribution especially in the subsoil (Lipiec et al, 2012). Tillage operations are often conducted on compacted soils to enhance optimum root distribution and therefore nutrient uptake.…”

Section: Introductionmentioning

confidence: 99%

Spatial Patterns of Penetration Resistance and Soil Moisture Distribution in a Sandy Loam Soil (Eutric leptosol)

Lomeling¹,

Lasu²

2015

International J. of Soil Science

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Bivariate relations between penetration resistance and soil moisture content was conducted on sandy loam soil (Eutric leptosol) at the University of Juba demonstration farm. Soil Penetration Resistance (PR) was measured using an Eijkelkamp pocket penetrometer to a depth of 0-15 cm depth with Soil Moisture Content (SMC) measured using an Eijkelkamp sensor theta probe. Measured SMC within the plots varied from 9-35% whereas, the PR varied from 0.1 to 4.5 kg cmG 2 . The results showed significant negative correlation between PR and SMC expressed by a polynomial function with r 2 = 0.48 and Pearson Coefficient, R = -0.657. Spatial distribution of PR and SMC using both kriging and Inverse Distance Weighting (IDW) interpolation methods showed no significant differences. However, PR tended to decrease with an increasing SMC in an easterly direction. The results also showed that the spherical model gave the best fit for both PR and SMC at r 2 = 0.527 and 0.747 with moderate and strong spatial dependency at 28.9 and 10.53%, respectively. Though the effective range A 0 , for both PR and SMC at 24.14 and 30.4 m, respectively were more or less similar, the strong spatial dependency of SMC suggested its significance as a limiting factor for plant growth as opposed to PR which on average was at 1.592 kg cmG 2 .

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“…Al respecto, Lipiec et al (2012) afirman que al aumentar la compactación aumentan los agregados de tamaño >3 mm, lo que coincide con los resultados obtenidos en este trabajo. Sin embargo, es importante tener en cuenta que a medida que se profundiza en el perfil del suelo este tiende a ser más compacto, probablemente, una de las causas sea el tráfico de la maquinaria agrícola, cuyo efecto es acumulativo, así como a la carga in situ producida por los neumáticos agrícolas (Keller y Lamandé, 2010), los diferentes tipos de labranza (Kim et al, 2010), y las condiciones iniciales del suelo (Lamandé y Schjonning, 2011).…”

Section: Resultados Y Discusiónunclassified

Efecto de la labranza en la estabilidad estructural y resistencia a la penetración en un Inceptisol sembrado en arracacha (Arracacia xanthorrhiza Bancroft) en Boyacá

Pinto-Acero

Álvarez-Herrera

Forero-Ulloa

2016

Rev. Colomb. Cienc. Hortic.

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Plantulas de tomate.Foto: Álvarez-Herrera.Efecto de la labranza en la estabilidad estructural y resistencia a la penetración en un Inceptisol sembrado con arracacha (Arracacia xanthorrhiza Bancroft) en Boyacá Effect of tillage on the structural stability and resistance to penetration of a Inceptisol planted with arracacha (Arracacia xanthorrhiza Bancroft) in Boyaca RESUMENEn el municipio de Boyacá (departamento de Boyacá, Colombia), la producción de arracacha constituye una fuente de ingresos importante para los agricultores. Debido a la escasa información sobre el paquete tecnológico para este cultivo, se estudió el efecto de diferentes sistemas de labranza (labranza mínima, labranza convencional y labranza vertical) sobre algunas de las principales propiedades físicas de un suelo Typic Dystrudepts, con pendiente del 3%, tipo de paisaje montañoso y tipo de relieve lomerío; durante cuatro épocas de muestreo (antes de la preparación (E1), después de la preparación (E2), 100 días después de la siembra (E3) y 180 días después de la siembra (E4)). El diseño fue en bloques completamente aleatorizados, donde cada bloque correspondió a un tipo de labranza, y los tratamientos fueron dos materiales de arracacha (Yema de huevo y Paliverde). Los valores más bajos de resistencia a la penetración se presentaron en la labranza vertical a los 12,5; 17,5 y 20 cm, con valores de 262,8; 810,8 y 1337,5 kPa respectivamente, del mismo modo, este tipo de labranza presentó una mayor estabilidad estructural y un gran porcentaje de distribución de agregados de tamaño entre 1 y 3 mm, con un valor promedio de 31,4%, frente a la labranza convencional y la labranza mínima, con valores de 22% y 25,2% respectivamente, lo cual favoreció el desarrollo radicular de las plantas de arracacha. La mayor diferencia entre los tipos de labranza para la distribución por tamaño de agregados se presentó a los 100 días después de la siembra. Los materiales de arracacha evaluados no afectaron de forma significativa ninguno de los parámetros del suelo.

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Estimating effects of compaction on pore size distribution of soil aggregates by mercury porosimeter

Cited by 87 publications

References 42 publications

Physical parameters of Fluvisols on flooded and non-flooded terraces

Physical parameters of Fluvisols on flooded and non-flooded terraces

Spatial Patterns of Penetration Resistance and Soil Moisture Distribution in a Sandy Loam Soil (Eutric leptosol)

Efecto de la labranza en la estabilidad estructural y resistencia a la penetración en un Inceptisol sembrado en arracacha (Arracacia xanthorrhiza Bancroft) en Boyacá

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