Results 11 to 20 of about 20,010 (257)

Water retention curves of lightweight cemented soils [PDF]

open access: yesE3S Web of Conferences, 2020
In the present paper an experimental investigation on water retention properties of lightweight cemented soils (LWCS) taking into account the effects of air foam content and curing time is presented. This experimental study, aimed at determining the suction range corresponding to significant changes in water content, is preliminary to future ...
Vitale E.   +7 more
openaire   +4 more sources

Soil hydrophysical properties as affected by kind of added polymer. [PDF]

open access: yesArab Universities Journal of Agricultural Sciences, 2020
Laboratory experiments were carried out to clarify the impact of different types of natural and synthetic polymers on some hydrophysical properties (soil hydraulic parameters) of a sandy soil.
Asmaa Musa   +3 more
doaj   +1 more source

Modelling soil water retention to identify management influence on soil pore characteristics

open access: yesAnais da Academia Brasileira de Ciências, 2022
The water retention curve is widely used in studies involving soil. The management systems directly influence soil structure by altering water retention dynamics.
RODRIGO F. DA SILVA   +6 more
doaj   +1 more source

Adjusting the water retention curve for retractable soils

open access: yesDYNA, 2021
The soil water retention curve (SWRC) relates moisture to soil water retention energy (matrix potential). The calculation of the volumetrichumidity considers the sample volume. In retractable soils, this volume varies according to the drying or wetting of the soil, which can result in errors in the calculated moisture. The objective of this study is to
Luana da Silva   +3 more
openaire   +3 more sources

Estimation of soil water retention curve using fractal dimension

open access: yesJournal of Applied Sciences and Environmental Management, 2018
The soil water retention curve (SWRC) is a fundamental hydraulic property majorly used to study flow transport in soils and calculate plant-available water.
Z.M. Seyedeh   +3 more
doaj   +3 more sources

In situ estimation of soil hydraulic and hydrodispersive properties by inversion of electromagnetic induction measurements and soil hydrological modeling [PDF]

open access: yesHydrology and Earth System Sciences, 2022
Soil hydraulic and hydrodispersive properties are necessary for modeling water and solute fluxes in agricultural and environmental systems. Despite the major efforts in developing methods (e.g., laboratory-based, pedotransfer functions), their ...
G. Dragonetti   +6 more
doaj   +1 more source

Soil-water characteristic of biochar-clay mixture in the full suction range

open access: yesRock and Soil Mechanics, 2022
Soil-water characteristic curve (SWCC) plays an important role in defining the hydro-mechanical behavior of unsaturated soils. Biochar has the properties of porous structure, high specific surface area and high adsorption.
LI Ming-yu   +3 more
doaj   +1 more source

Parametric soil water retention models: a critical evaluation of expressions for the full moisture range [PDF]

open access: yesHydrology and Earth System Sciences, 2018
Few parametric expressions for the soil water retention curve are suitable for dry conditions. Furthermore, expressions for the soil hydraulic conductivity curves associated with parametric retention functions can behave unrealistically near ...
R. Madi   +4 more
doaj   +1 more source

Pedotransfer functions for point and parametric estimations of soil water retention curve

open access: yesPlant, Soil and Environment, 2006
A water retention curve is required for the simulation studies of water and solute transport in unsaturated or vadose zone. Unlike the direct measurement of water retention data, pedotransfer functions (PTFs) have attracted the attention of researchers ...
H. Merdun
doaj   +1 more source

Relating Hydraulic Conductivity Curve to Soil-Water Retention Curve Using a Fractal Model

open access: yesMathematics, 2020
In the study of water transference in soil according to Darcy law, the knowledge of hydrodynamic characteristics, formed by the water retention curve θ(ψ), and the hydraulic conductivity curve K(ψ) are of great importance. The first one relates the water
Carlos Fuentes   +2 more
doaj   +1 more source

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