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Journal Article
Published: 01 September 2017
Journal of Environmental and Engineering Geophysics (2017) 22 (3): 249–266.
... analysis. Measurements were acquired on January 29, 2016 at the Red Buttes test site about 19 km south of Laramie, Wyoming. The geologic structure consists of three shallow-dipping, sub-horizontal layers in the near surface: an unconsolidated clay loam, the Satanka Formation, and the Epsilon...
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Journal Article
Published: 01 April 2017
Vadose Zone Journal (2017) 16 (4): 1–8.
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Journal Article
Published: 01 August 2016
Vadose Zone Journal (2016) 15 (8): vzj2016.04.0030.
... process. † Porous medium K s θ s θ r α l n m/d m 3 /m 3 1/m Columbia silt loam ‡ 0.6682 0.450 0.020 1.185 0.50 2.032 Hesperia sandy loam ‡ 1.642 0.385 0 3.250 1.77 1.540 Marine sand § 13.68 0.387 0.0187 4.10 0.50 ¶ 17 † K s...
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Journal Article
Published: 01 May 2016
Vadose Zone Journal (2016) 15 (5): vzj2015.11.0154.
... and unfrozen water content of air-free frozen silt . Water Resour. Res. 26 : 323 – 329 . doi:10.1029/WR026i002p00323 Black P.B. Tice A.R. . 1989 . Comparison of soil freezing curve and soil water curve data for Windsor sandy loam . Water Resour. Res. 25 : 2205 – 2210 . doi:10.1029...
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Journal Article
Published: 17 March 2016
Quarterly Journal of Engineering Geology and Hydrogeology (2016) 49 (2): 138–146.
... diffusivity values determined in the laboratory or obtained by point measurements using field needle probes. Associated thermal conductivities have been estimated from the thermal diffusivities from knowledge of soil texture. Median thermal conductivities for the sand, loam and clay soil types have been...
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Journal Article
Published: 01 February 2016
Environmental and Engineering Geoscience (2016) 22 (1): 53–66.
.... The Datun Reservoir exploration data indicate that Holocene strata are widely distributed across the area ( Figure 2 and Table 2 ). The layers of alluvial soils above 17.20 to 23.50 m are unstable. The upper layer consists of sandy loam and fissured clay with sporadic loam and silt. The lower layer...
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Journal Article
Published: 01 August 2015
Vadose Zone Journal (2015) 14 (8): vzj2014.10.0153.
...M. Berli; F. Casini; W. Attinger; R. Schulin; S.M. Springman; J.M. Kirby Abstract The protection of soils against compaction requires knowledge of the mechanical behavior and properties of structured, unsaturated soils at different water suctions. This study of an agricultural silt loam soil...
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Journal Article
Published: 01 July 2015
Vadose Zone Journal (2015) 14 (7): vzj2015.01.0007.
...Dengjun Wang; Deb P. Jaisi; Jing Yan; Yan Jin; Dongmei Zhou Abstract Transport and retention of polyvinylpyrrolidone-coated silver nanoparticles (PVP-AgNPs) were examined in water-saturated columns packed with three types of natural soils: a clay loam red soil (RS), a sandy loam fluvo-aquic soil...
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Journal Article
Published: 01 December 2014
Vadose Zone Journal (2014) 13 (12): vzj2013.10.0181.
.... The finite-element mesh and other numerical options used in HYDRUS-1D simulations were similar to those used by Lassabatere et al. (2009) . The flow domain was assumed to be 1 m deep for loam and silt and 40 cm deep for silty clay. Finite elements of 2 mm were used to discretize the transport domain...
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Journal Article
Published: 01 August 2014
Environmental and Engineering Geoscience (2014) 20 (3): 239–255.
... is referred to as Wyman clay loam. These soils are described as having weak granular to blocky structural aggregates coated with colloidal material. They are hard when dry, sticky and plastic when wet, mildly alkaline, and have calcareous patches. Soil 4—Oakdale silty clay. In the soil surveys this soil...
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Journal Article
Published: 01 March 2014
Vadose Zone Journal (2014) 13 (3): vzj2013.07.0136.
... processes involving Fe and S cycling in the vadose zone using repacked soil columns. Synthetic rainwater was applied to a homogenized medium-grained sand column, a homogenized organic-rich loam column, and a sand-over-loam layered column. Water samples were voltammetrically analyzed for total sulfide, Fe 2...
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Series: GSA Reviews in Engineering Geology
Published: 01 January 2014
DOI: 10.1130/2014.4122(09)
EISBN: 9780813758220
... from PSD analysis of the fine-earth fraction ranging from loam to silty-loam to silt. Soil moisture ranges from 0.4% to 2.6% for untreated samples and from 0.1% to 2.8% for treated samples. With few exceptions, the general trend was for soil moisture to decrease through time at all test sites...
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Journal Article
Published: 01 February 2012
Vadose Zone Journal (2012) 11 (1): vzj2011.0065.
... (1994) KootwijkAE 0.55 1.17 2.59 0.91 0.07 0.02 0.00 sand – KootwijkB 0.50 1.30 2.59 0.90 0.07 0.03 0.00 sand – KootwijkC 0.39 1.61 2.64 0.98 0.01 0.01 0.00 sand – Loamy clay soils Saitama 10 0.55 1.20 2.65 0.48 0.34 0.17 0.07 clay loam This study...
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Journal Article
Published: 01 August 2011
Vadose Zone Journal (2011) 10 (3): 1023–1033.
... or soil bulk density, however, must rely on a “pedo-electrical” function, i.e., a conductivity model for soils. This study aimed to test five pedo-electrical models for their ability to reproduce electrical resistivity as measured by ERT in a silt loam soil sample across a range of moisture and bulk...
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Journal Article
Published: 01 May 2011
Vadose Zone Journal (2011) 10 (2): 582–593.
... on electrical conductivity, with both under- and overestimation of permittivity. Using these experimental data, we derived empirical correction functions. The performance of the correction functions for the 5TE sensor was evaluated using coarse sand and silty clay loam soil samples. After correcting...
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Journal Article
Published: 01 May 2011
Vadose Zone Journal (2011) 10 (2): 487–495.
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Journal Article
Published: 01 November 2010
Vadose Zone Journal (2010) 9 (4): 1080–1091.
... of application. Although they observed good agreement between most methods, they postulated that hydraulic conductivities were influenced by the method of determination. Eching et al. (1994) found very good agreement in the hydraulic properties of a packed loam soil obtained from an MSO and an EVA experiment...
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Journal Article
Published: 01 November 2010
Vadose Zone Journal (2010) 9 (4): 893–897.
... and weak exchange of water molecules between the pores, two different silt loams were characterized by the exchange of water between pores with fast relaxation times and multisite exchange with increasing τ m . The measured exchange dynamics were characterized by T 2 relaxation times in the range of 5 ms...
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Journal Article
Published: 01 May 2010
Vadose Zone Journal (2010) 9 (2): 438–444.
... developed a method based on image analysis. Continuous images were analyzed for their color intensities. These were converted to water-content values and the soil water moments were then calculated. We performed laboratory infiltration experiments with two soils, sand and sandy loam, for analysis...
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Journal Article
Published: 01 November 2009
Vadose Zone Journal (2009) 8 (4): 942–952.
... that the impedance factor decreased with increasing dry bulk density. So and Nye (1989) also studied the effect of bulk density, water content, and soil type on solute diffusion, using sandy loam and loamy clay soils. The impedance factor decreased with increasing bulk density for each soil type, but overall...
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