Results 31 to 40 of about 20,924 (294)

Experimental study to evaluate soil water retention curve of HYPER clay geosynthetic clay liner

, 2022
Geosynthetic clay liners are widely used as hydraulic barrier due to their low hydraulic conductivity but bentonite in the liners loses its effectiveness due to significant thermal fluxes by both diurnal and seasonal heating and cooling cycles.
Khan, Muhammad Khizar, Bezuijen, Adam, Di Emidio, Gemmina, De Camillis, Michela   +3 more
core   +1 more source

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

E3S 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

Slovak 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, Stradiot Peter, Rehák Štefan   +2 more
doaj   +1 more source

Reliability of HCT-based Soil Water Retention Curves

E3S 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, Matziaris Vasileios, Akinniyi Damilola   +2 more
openaire   +2 more sources

A comparative study of multiple approaches for predicting the soil-water retention curve: Hyperspectral information vs. basic soil properties [PDF]

, 2015
Information about the soil-water retention curve is necessary for modeling water flow and solute transport processes in soils. Soil spectroscopy in the visible, nearinfrared, and shortwave infrared (Vis-NIR-SWIR) range has been widely used as a rapid ...
Homaee, Mehdi, Hydrogeology, Environmental hydrogeology, Norouzi, Ali Akbar, Vereecken, Harry, Van Genuchten, Martinus Th, Montzka, Carsten, Babaeian, Ebrahim   +7 more
core   +2 more sources

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

Desert
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, Shoja Ghorbani-Dashtaki, Fayez Raiesi, Sayyed-Hassan Tabatabaei, Bijan Khalilimoghadam   +4 more
doaj   +1 more source

Average Soil Water Retention Curves Measured by Neutron Radiography

Soil 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, M, Kang, E, Perfect, S, Voisin, J, Horita, H Z, Bilheux, J M, Warren, D L, Jacobson, D S, Hussey   +8 more
openaire   +3 more sources

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

Comptes 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, Arroyo, Hiram, Horta, Jaime, Pérez-Rea, María de la Luz, López-Lara, Teresa, Hernández, Juan Bosco   +5 more
doaj   +1 more source

Combination of artificial neural networks and fractal theory to predict soil water retention curve

, 2013
Despite good progress in developing pedotransfer functions (PTFs), the input variables that are more preferable in a PTF have not been yet determined clearly. Among the modeling techniques to characterize soil structure, those using fractal theory are in
Bayat, H., Neyshaburi, M. R., Nariman-Zadeh, N., Irannejad, M., Gregory, A. S., Mohammadi, K.   +5 more
core   +1 more source

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

International 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, Luiz Fernando Pires, Robson André Armindo   +2 more
doaj   +1 more source