Use of Saran Resin to Coat Natural Soil Clods for Bulk-Density and Water-Retention Measurements

Brasher, B. R.; Franzmeier, D. P.; Valassis, Vlassios Thomas; Davidson, S. E.

doi:10.1097/00010694-196602000-00006

Cited by 188 publications

(65 citation statements)

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“…The analysis method used for clods is based on Archimedes' principle. After saturation, each clod was coated with SARAN F-310 resin, creating a thin elastic, semipermeable skin [Brasher et al, 1966;Bronswijk and Evers-Vermeer, 1990]. The weight losses during a drying process were monitored by submerging the sample into water to measure its volume.…”

Section: Aggregates Domainmentioning

confidence: 99%

Dual‐permeability model for flow in shrinking soil with dominant horizontal deformation

Coppola

Gerke

Comegna

et al. 2012

Water Resources Research

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In this study, a dual‐permeability approach is discussed for modeling preferential flow in shrinking soils by accounting for shrinking effects on macropore and matrix domain hydraulic properties. Conceptually, the soil is treated as a dual‐permeability bulk porous medium consisting of two dynamic interacting pore domains: (1) the fracture (from shrinkage) pore domain and (2) the aggregate (interparticles plus structural) or matrix pore domain. The model assumes that the swell‐shrink dynamics is represented by the inversely proportional volume changes of the fracture and matrix domains, while the overall porosity of the total soil, and hence the layer thickness, remains constant. This assumption can be justified for soils with dominant horizontal soil deformation in the swelling‐shrinkage process (shrinkage geometry factor,rs> 3). The swell‐shrink dynamics was included in a one‐dimensional dual‐permeability model in which water flow in both domains was described with the Richards' equation. Swell‐shrink dynamics was incorporated in the model partly by changing the coupled domain‐specific hydraulic properties according to the shrinkage characteristics of the matrix and partly by allowing the fractional contribution of the two domains to change with the pressure head. As a first step, the hysteresis in the swell‐shrink dynamics was not included. We also assumed that the aggregate behavior and its hydraulic properties depend only on the average aggregate water content and not on its internal real distribution. The model proved, describing successfully effects of shrinkage on the spatial and temporal evolution of water contents measured in a silty loam soil in the field.

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Section: Aggregates Domainmentioning

confidence: 99%

Dual‐permeability model for flow in shrinking soil with dominant horizontal deformation

Coppola

Gerke

Comegna

et al. 2012

Water Resources Research

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“…Aiming to test a new manner of quantification of soil shrinkage, whose principle would be similar to the classical Saran Resin Method (Brasher et al, 1966;Tan, 1996;Donagema et al, 2011), using soil samples with undisturbed structure, a new methodology was developed based on quantification of soil volume variation. The initial volume corresponds to the soil at field capacity, and the final volume is obtained after oven drying at 105 °C for 48 h. Variation in volume is obtained after drying the soil, filling the volume of the void of the volumetric ring with fine sand (from 0.425 to 0.053 particle diameter), which, in preliminary tests, proved to penetrate the fissures resulting from shrinkage of the soils, filling them.…”

Section: Ring With Sand Methodsmentioning

confidence: 99%

“…The classical methodology used for this purpose makes use of Saran resin (COLE Saran ), proposed by Brasher et al (1966) and described by Tan (2005) and Donagema et al (2011). The method basically consists of quantifying variation in the volume of a sample with preserved structure, which is maintained at moisture conditions at field capacity and related to the volume of the same sample after oven drying at 105 °C.…”

Section: Introductionmentioning

confidence: 99%

Methods for Quantifying Shrinkage in Latossolos (Ferralsols) and Nitossolos (Nitisols) in Southern Brazil

Silva

Sequinatto

Almeida

et al. 2017

Rev. Bras. Ciênc. Solo

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Brown Nitossolos (Nitisols) and Latossolos (Ferralsols), according to the Brazilian System of Soil Classification (SiBCS), have a "caráter retrátil" as their distinctive property. Because this is a new topic, it is necessary to propose methods for evaluation. The objectives of this study were to evaluate methodologies for quantifying the shrinkage of soil using the Syringe Method and the Metallic Mercury Method, and to propose a new one, the "Ring with Sand Method". Soil samples from eight pedons were used, with six Nitossolos and Latossolos with shrinkage, a Latossolo without shrinkage, and a Vertissolo (Vertissol) with admittedly high shrinkage and expansion. The methods were effective in identifying the greater degree of shrinkage of the Vertissolo. However, the Ring with Sand Method was the only one to indicate significant differences between the Vertissolo and the Latossolo without shrinkage, and this method differentiated the shrinkable soils as to the intensity of the characteristic. The proposed method was effective and can serve as a standard to quantify shrinkage.

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“…Shrinkage properties of the soil were established following Brasher et al (1966) and was determined at both natural clods and tablets made from crushed soil samples.…”

Section: Methodsmentioning

confidence: 99%

Biological control of pedological and hydro-geomorphological processes in a deciduous forest ecosystem

Cammeraat

Kooijman

2009

Biologia

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This study describes the effect of soil fauna and vegetation on the development of landscapes and how these actually control soil formation, geomorphological development and hydrological response. The study area is located in a semi-natural deciduous forest on marl in Luxembourg, with a strong texture contrast in the soil at 15-25 cm depth (luvic planosols). The methodology applied is both based on hydrological and geomorphological field measurements on runoff, sediment yield, perched water table dynamics, geomorphological survey, pedological survey and measurements related to in situ ectorganic horizon dynamics and litter decay, soil animal activity, as well as measurements of dynamic soil properties such as soil moisture and swelling and shrinkage. The results show that there is a positive feedback between tree type, soil fauna activity and the development of pipes, partial areas, soils and geomorphology. The landscape can be divided into two main types: Areas where Stellario-Carpinetum vegetation and partial areas are common and areas with Milio-Fagetum vegetation on dry slopes, which are differentiating more and more over time as a result of ongoing geo-ecosystem processes, and which also reflected in their sediment yield. The hydrological response is highly different for both landscape compartments as they are dominated by matrix (Beech) and pipe flow (Hornbeam) respectively. Soil fauna and tree type drive both soil and geomorphological evolution and they both can be considered as important ecosystem engineers.

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Use of Saran Resin to Coat Natural Soil Clods for Bulk-Density and Water-Retention Measurements

Cited by 188 publications

References 0 publications

Dual‐permeability model for flow in shrinking soil with dominant horizontal deformation

Dual‐permeability model for flow in shrinking soil with dominant horizontal deformation

Methods for Quantifying Shrinkage in Latossolos (Ferralsols) and Nitossolos (Nitisols) in Southern Brazil

Biological control of pedological and hydro-geomorphological processes in a deciduous forest ecosystem

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