Results 21 to 30 of about 20,125 (259)

Nanoscale soil-water retention curve of unsaturated clay via molecular dynamics [PDF]

open access: yesE3S Web of Conferences, 2023
This paper characterizes nanoscale soil-water retention mechanism of unsaturated clay through molecular dynamics simulation. Series of molecular dynamics simulations of clay at low degrees of saturation were conducted.
Zhang Zhe, Song Xiaoyu
doaj   +1 more source

Comparison Of Selected Pedotransfer Functions For The Determination Of Soil Water Retention Curves

open access: yesSlovak Journal of Civil Engineering, 2015
Soil water retention curves were measured using a sandbox and the pressure plate extractor method on undisturbed soil samples from the Borská Lowland. The basic soil properties (e.g. soil texture, dry bulk density) of the samples were determined.
Kupec Michal   +2 more
doaj   +1 more source

Microbial Effects on Hydraulic Properties of Sewage Sludge-Induced Water-Repellent Soil. [PDF]

open access: yesDesert
Soil water repellency (SWR) is a widespread natural phenomenon that results from a complex interplay between the hydrosphere, lithosphere, biosphere, atmosphere, and anthroposphere.
Nasrin Karimian   +4 more
doaj   +1 more source

Reliability of HCT-based Soil Water Retention Curves

open access: yesE3S Web of Conferences, 2023
The measurement of SWRCs using HCTs has been the subject of several recent studies. Consequently, there have been several design and experimental procedures developed. However, despite these developments, the accuracy, range and duration of HCT-based measurement is still largely characterized by uncertainties and inconsistencies, thereby, reducing the ...
Bagheri Meghdad   +2 more
openaire   +2 more sources

Modeling the soil–water retention curves while the soil is deforming

open access: yesComptes Rendus. Mécanique, 2021
A porous-solid model based on the grain and pore size distributions of the soil is coupled with a mechanical model to simulate the soil–water retention curves while the material is deforming. During the determination of the main drying curve, the soil is
Rojas, Eduardo   +5 more
doaj   +1 more source

Average Soil Water Retention Curves Measured by Neutron Radiography

open access: yesSoil Science Society of America Journal, 2012
Water retention curves are essential for understanding the hydrologic behavior of partially saturated porous media and modeling flow and transport processes within the vadose zone. We directly measured the main drying and wetting branches of the average water retention function obtained using two-dimensional neutron radiography. Flint sand columns were
C L, Cheng   +8 more
openaire   +3 more sources

New empirical-point pedotransfer functions for water retention data for a wide range of soil texture and climates

open access: yesInternational Soil and Water Conservation Research
Knowing soil hydraulic properties is essential to support soil use and management practices; however, their measuring is commonly expensive and time-consuming. Thus, pedotransfer functions (PTFs) have been used to quantify physical properties such as the
Aline Mari Huf dos Reis   +2 more
doaj   +1 more source

Water retention curve model based on micro-pore filling and capillary condensation theories

open access: yesRock and Soil Mechanics, 2021
Water retention curve (WRC) is an important tool to study the hydraulic and mechanical properties of unsaturated soils, such as permeability, strength and deformation properties.
LIU Zhang-rong   +5 more
doaj   +1 more source

Determination of soil-water retention curve: an artificial intelligence-based approach [PDF]

open access: yesE3S Web of Conferences, 2020
Soil Water Retention Curve (SWRC) is a fundamental relationship in unsaturated soil mechanics, knowledge of which is essential for determining major mechanical and hydraulic properties of unsaturated soils. There are several empirical, semi-empirical and
Nikooee Ehsan   +4 more
doaj   +1 more source

Analysis of water vapor adsorption in soils by means of a lysimeter and numerical modeling

open access: yesVadose Zone Journal, 2020
Daily temperature oscillations can cause adsorption (and desorption) of atmospheric water vapor by soils. The resulting daily fluctuations in the amount of liquid water in the soil can be measured by high‐precision weighing lysimeters.
Maarten W. Saaltink   +2 more
doaj   +1 more source

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