Hardsetting and structural regeneration in two unstable British sandy loams and their influence on crop growth

Young, Iain M.; Mullins, Chris; Costigan, P. A.; Bengough, A. Glyn

doi:10.1016/0167-1987(91)90114-d

Cited by 24 publications

(14 citation statements)

References 9 publications

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“…It has been used in soil friability and tillability studies (Snyder and Miller, 1985;Dexter and Watts, 2000) and to characterise the hardsetting behaviour (Young and Mullins, 1991;Young et al, 1988;Mullins et al, 1992a,b;Mullins, 1997Mullins, , 2000. Tensile strength was measured on the prepared samples.…”

Section: Strength Measurementsmentioning

confidence: 98%

“…This process is called self-compactive behaviour by Indian scientists (cited in Mullins, 2000). Young et al (1988) showed that bulk density as high as 1.7 Mg m À 3 is attained a few months after plowing in the plowed layer of a hardsetting soil. This provides a clear demonstration that external loading is not always the cause of high bulk density in the topsoil.…”

Section: Introductionmentioning

confidence: 99%

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Tensile strength of sand, palygorskite and calcium carbonate mixtures and interpretation with the effective stress theory

2006

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Section: Strength Measurementsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Tensile strength of sand, palygorskite and calcium carbonate mixtures and interpretation with the effective stress theory

2006

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“…Soil sinkage did not happen regularly over time but was related to the occurrence of rainfall events, and consequently can be considered as an indicator of soil slumping as defined by Mullins et al (1990). Soil sinkage cannot be easily observed by the naked eye even if it is probably a common phenomenon in coarse textured soils, this may explain why it is only rarely described (Wilton, 1964;Young et al, 1991;Moffat and Boswell, 1997;Or and Ghezzehei, 2002). Even if soil sinkage is a relevant indicator of slumping, it does not provide any information about how compactness evolves with depth in the soil.…”

Section: Evidence Of Slumpingmentioning

confidence: 96%

Slumping dynamics in tilled sandy soils under natural rainfall and experimental flooding

Huang

Hartmann

Apichart³

et al. 2011

Soil and Tillage Research

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International audienceCompaction of tilled layers under the single effect of rainfall or irrigation was called slumping. Slumping affects strongly root development and plant biomass production. It has been observed in different soil types, but sandy soils appear particularly prone to this physical degradation. Our objectives in this study were (i) to measure in the field the changes in soil structure and water status simultaneously, (ii) to study the effects of rainfall and management practices on slumping, and (iii) to propose a conceptual model for sandy soil slumping. An experimental site was selected in Northeast Thailand and we studied the effect of tillage depth and initial water content on slumping dynamic. Plots (9 m × 15 m each) were tilled at (i) two depths (20 and 40 cm, called S and previous termDnext term respectively) in dry conditions, (ii) at 20 cm depth in dry or wet conditions (called Y and W respectively). These plots were submitted to natural rainfall for 20 or 61 days to get different total rainfall amounts (114 and 212 mm respectively). In addition, smaller plots (0.24 m2 each) were used for experimental flooding irrigation (similar to measured rainfalls, i.e. 100 and 200 mm). Soil bulk density, soil surface elevation, soil water content and matric potential were measured. A decrease in soil elevation was observed in all treatments. In the absence of erosion it was interpreted as a loss of porosity which resulted from slumping. Bulk density increased in all layers of the tilled profile (from 1.38 to 1.57 g cm−3). In the surface layer (0-5 cm) this increase was systematically higher compared to deeper layer. No significant difference in final bulk density was found between the S and W treatments, and between the Y and W treatments. Bulk density increased more rapidly in the Y and W treatments than in the S and previous termDnext term treatments, even though the cumulative rainfall was lower. After the flooding experime

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“…In Europe, it has mainly been studied in the UK, on sandy loam soils with low organic matter content (Young et al, 1991;Young, 1992), where slumping and compaction might not be easily delineated (Young, 1992). Only a few references can be found to other European countries: in The Netherlands (Kwaad and Mücher, 1994), Sweden (Stenberg et al, 1995) and France (Figure 2.3.1d) (Bresson et al, 2001).…”

Section: Structure Slumping In Europementioning

confidence: 96%

Soil Surface Crusting and Structure Slumping in Europe

Bresson¹,

Bissonnais

Andrieux

2006

Soil Erosion in Europe

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Hardsetting and structural regeneration in two unstable British sandy loams and their influence on crop growth

Cited by 24 publications

References 9 publications

Tensile strength of sand, palygorskite and calcium carbonate mixtures and interpretation with the effective stress theory

Tensile strength of sand, palygorskite and calcium carbonate mixtures and interpretation with the effective stress theory

Slumping dynamics in tilled sandy soils under natural rainfall and experimental flooding

Soil Surface Crusting and Structure Slumping in Europe

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