Results 51 to 60 of about 1,019 (183)
Vadose Zone Journal, Volume 25, Issue 4, July/August 2026.Abstract Redox processes in soil governs key biogeochemical cycles and influence carbon, nitrogen, and phosphorus dynamics. However, their role in deep vadose zone soils remains poorly understood, particularly in variably saturated environments with heterogeneous hydroclimatic, landscape position, and land use conditions.
Amir Sedaghatdoost, Binayak P. Mohanty
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Numerical analysis of matric suction effects of tree roots [PDF]
Proceedings of the Institution of Civil Engineers - Geotechnical Engineering, 2006 The use of native vegetation in the coastal regions of Australia has become increasingly popular for stabilising railway corridors built over expansive clays and compressive soft soils. The tree roots provide three stabilising functions: (a) they reinforce the soil; (b) they dissipate excess pore pressures; and (c) they establish sufficient matric ...
Indraratna, Buddhima +2 more
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Geofluids, 2020 In this study, to explore the feasibility of a compacted red clay as an engineered barrier in landfills, the viscoplastic property of remodeled unsaturated reticulate red clay was studied through a series of triaxial tests.
Chuang Zhang, Jian-Zhong Li, Yong He
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Influence of weathering on unsaturated electrical conductivity of granitic regolith
Vadose Zone Journal, Volume 25, Issue 4, July/August 2026.Abstract Geoelectrical methods have been increasingly used to characterize critical zone (CZ) subsurface structure and to monitor water dynamics within CZs. To interpret field geoelectrical measurements correctly, one needs to have a mechanistic understanding of the physical properties of the regolith.
Surani Liyanage, Qifei Niu
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Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 7, July 2026.Abstract Understanding vegetation's response to soil water availability and atmospheric demand is critical for assessing the impact of drought and climate change on semi‐arid ecosystems. However, limited field‐based research has been conducted to assess the relative importance of these drivers on vegetation productivity.
Kayla Jamerson +5 more
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A Numerical Model to Predict Matric Suction Inside Unsaturated Soils
Acta Polytechnica, 2004 The objective of this research is to introduce a numerical simulation model to predict approximate values of the matric suction inside unsaturated soils that have low water contents.
A. Farouk, L. Lamboj, J. Kos
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European Journal of Soil Science, Volume 77, Issue 4, July/August 2026.Overview of the proposed three‐step workflow for estimating soil hydraulic properties from VNIR–SWIR reflectance spectroscopy. (1) Spectro‐transfer functions (STFs) convert soil reflectance spectra into particle‐size distribution (PSD). (2) Calibration‐free, semi‐physical pedotransfer functions (PTFs) use the spectrally‐derived PSD together with ...
Paolo Nasta +3 more
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Leaky Sewers Hydraulically Disconnect from Groundwater: A Proof‐of‐Concept
Groundwater, Volume 64, Issue 4, Page 483-497, July/August 2026.In this study, we newly demonstrate that leaky pipes can become hydraulically disconnected from the underlying groundwater—a phenomenon analogous to river–groundwater interactions. Through numerical modeling, we show that, as the groundwater table declines, the leakage flux from the pipe (in absolute terms) initially increases until a critical depth ...
Aaron Peche +5 more
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Soil amendment effects on field‐saturated and unsaturated hydraulic properties of sodic soils
Agrosystems, Geosciences &Environment, Volume 9, Issue 2, June 2026.Abstract Soil sodicity degrades soil structure and restricts water movement by promoting clay swelling, dispersion, and surface sealing, thereby reducing infiltration and hydraulic conductivity. This study aims to evaluate the effects of four soil amendments (elemental sulfur, gypsum, compost, and humate) on the hydraulic conductivity of sodic soils ...
Tejinder Singh +6 more
wiley +1 more source
Analytical Solution to the Matric Suction of Unsaturated Soil by a Source Term’s 1D Steady Flow
工程科学与技术, 2016 :To ascertain the vertical distribution of the matric suction in unsaturated soil by a source term’s 1D steady flow,a general solution was found with Gardner model.In addition,two particular solutions under the conditions of no source term and constant ...
程大伟 +4 more
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