Pore Characteristics of Soils From Two Cultivation Experiments as Shown by Gas Diffusivities and Permeabilities and Air‐filled Porosities

Ball, B. C.

doi:10.1111/j.1365-2389.1981.tb01724.x

Cited by 99 publications

(47 citation statements)

References 17 publications

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“…Sweeney et al (2006) e Vogeler et al (2006) utilizaram a K a para avaliar os efeitos da compactação pelo tráfego de máquinas. Aspectos funcionais da macroporosidade, bem como a continuidade e a tortuosidade dos poros, têm sido descritos por propriedades relacionadas ao fluxo de gases no solo, incluindo a K a (Ball, 1981;Rosemberg & McCoy, 1990). Outros estudos têm utilizado a K a para estimar a condutividade hidráulica do solo saturado (K s ) e a difusividade do ar no solo (D), considerando que as medidas de K a são mais fáceis, mais rápidas e menos sujeitas a erros experimentais do que K s e D (Moldrup et al, 1999;Iversen et al, 2001b;Wells et al, 2006).…”

Section: Introductionunclassified

Determinação da permeabilidade ao ar em amostras indeformadas de solo pelo método da pressão decrescente

Silva

Leão²,

Tormena

et al. 2009

Rev. Bras. Ciênc. Solo

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Section: Introductionunclassified

Determinação da permeabilidade ao ar em amostras indeformadas de solo pelo método da pressão decrescente

Silva

Leão²,

Tormena

et al. 2009

Rev. Bras. Ciênc. Solo

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“…Soils with values of K a 1 µm 2 can be considered impermeable, according to McQueen & Shepherd (2002). Ball (1981), Ball et al (1988) and McCarthy & Brown (1992) describe a direct relationship between K a and air-filled porosity (Ɛ a ). Ball et al (1988), Blackwell et al (1990), Dörner & Horn (2006) and Groenevelt et al (1984) used the relationships between K a and Ɛ a to estimate indexes of pore continuity that characterize functional changes in the soil pore system.…”

Section: Introductionmentioning

confidence: 99%

Aeration condition of a clayey oxisol under long-term no-tillage

Betioli

Tormena²,

Moreira

et al. 2014

Rev. Bras. Ciênc. Solo

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The hypothesis of this study was that the absence of soil tillage in long-term no-tillage (NT) systems can be detrimental to soil aeration. The objective was to assess the aeration condition of an Oxisol (Rhodic Ferrasol), very clayey texture (750 g kg-1 of clay; 200 g kg-1 of sand), after 30 years of cultivation under NT. The physical property soil air permeability (Ka) is sensitive to changes in the soil pore system. Aside from Ka, the air-filled porosity (ε a) and indices of pore continuity (K1 and N), derived from the relationship between Ka and εa, were used as indices of soil aeration. From the soil layers 0.0-0.1 and 0.1-0.2 m, 240 undisturbed samples were collected along a transect perpendicular to the crop rows, at three sampling positions: corn plant row (CR); center of the interrow (INT); and the equidistant point between CR and INT (PE). The properties Ka and εa were determined at soil matric potentials (Ψm) of -2, -4, -6, -10, -30, and -50 kPa. Soil bulk density (BD) was also determined. The results confirmed the hypothesis. In the 0.0-0.1 m layer, Ka, K1, N and Ψa were significantly greater and BD significantly lower in CR than at the other sampling positions. At a Ψm of -10 kPa, the Ka of CR was 6.9 and 8.4 times higher than in PE and INT, respectively, in the 0.0-0.1 m layer. The properties Ka, K1 and N were sensitive enough to detect changes in the pore system and their differences between the sampling positions demonstrated the importance of the spatial location for soil sampling. Tilling the crop rows provides better soil aeration under NT.

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“…Ball (1981) also reported similar findings for non-manured soils, and stated that air permeability was highly variable because it depended on the radius, length and continuity of the largest pores. We are unaware of any studies that have measured air permeability of soils under increased rates of manure application.…”

Section: Intrinsic Air Permeabilitymentioning

confidence: 57%

“…Air permeability is particularly sensitive to changes in soil structure and has been used to assess changes in structure that result from different soil management practices (Grant and Groenevelt 1993). Previous studies have characterized changes in air permeability under different tillage systems (Ball 1981;Ball et al 1988) and cropping rotations (Groenevelt et al 1984), but we are unaware of any studies that have examined the effect of increased rates of manure application on air permeability.…”

mentioning

confidence: 99%

Soil physical properties of a Chernozemic clay loam after 24 years of beef cattle manure application

Miller¹,

Sweetland²,

Chang³

2002

Can. J. Soil. Sci.

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Miller, J. J., Sweetland, N. J. and Chang, C. 2002. Soil physical properties of a Chernozemic clay loam after 24 years of beef cattle manure application. Can. J. Soil Sci. 82: 287-296. Limited information exists on the influence of long-term application of beef cattle manure on soil physical properties in the Canadian prairies. A site on a clay loam soil (Dark Brown Chernozem) at Lethbridge was used to determine the effect of increased rates of manure application on selected soil physical properties in 1997 and 1998. The manure (from an unpaved feedlot) was applied annually in the fall for 24 yr at one, two and three times the 1973 recommended rates under dryland (0, 30, 60, 90 Mg ha -1 wet basis) and irrigation (0, 60, 120, 180 Mg ha -1 ). There was a significant (P < 0.05) decrease in the sand content of soil (0-10, 10-20 cm) with increased rates of manure application; and an increase in clay content for the 60 and 120 Mg ha -1 rates compared to the control under irrigation. There was a significant and negative linear relationship between increased rates of manure application and bulk density (0-5, 10-15 cm) for most seasons, and season affected bulk density values for a given manure rate. Penetration resistance (0-14 cm) was unaffected by increased rates of manure application under dryland. Under irrigation, it was significantly reduced at only the 3.5 cm and 10.5 cm depths in 1997, and at only the 3.5 cm depth in 1998. Air permeability was generally unaffected by increased rates of manure application, except for the 0-5 cm depth under irrigation, where it was significantly lowered at the highest application rate. Soil temperatures (0, 10, 20 cm) were lower under increased rates of marnure application at the 10 and 20 cm depths in the spring and summer under dryland, and they were higher at these two depths in the winter. Under irrigation, soil temperatures were lower with increased rates of manure application at the 20-cm depth in the spring, and they were higher at the 20-cm depth in the fall, and at the 0-and 20-cm depths in the winter. Overall, soil physical properties generally had a neutral or positive response to 24 yr of annual manure application at high rates, and should not cause any detrimental effects to the soil's physical condition.

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Pore Characteristics of Soils From Two Cultivation Experiments as Shown by Gas Diffusivities and Permeabilities and Air‐filled Porosities

Cited by 99 publications

References 17 publications

Determinação da permeabilidade ao ar em amostras indeformadas de solo pelo método da pressão decrescente

Determinação da permeabilidade ao ar em amostras indeformadas de solo pelo método da pressão decrescente

Aeration condition of a clayey oxisol under long-term no-tillage

Soil physical properties of a Chernozemic clay loam after 24 years of beef cattle manure application

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