Results 31 to 40 of about 20,924 (296)

Experimental study on soil-water characteristic curve and permeability curve of white sandstone and mudstone in northern Xinjiang

open access: yesYantu gongcheng xuebao, 2020
The foundation soil of large channels in northern Xinjiang is mostly white sandstone and mudstone, and its hydraulic characteristics determine the formation and development of channel structural diseases.
TAN Zhi-xiang 1, WANG Zheng-zhong 1, 2, GE Jian-rui 1, JIANG Hao-yuan 1, LIU Quan-hong 1, MENG Xiao-dong 1
doaj   +1 more source

Using Clay Content to Estimate Soil Water Characteristic Curve

open access: yesGuan'gai paishui xuebao, 2021
【Objective】 Water retention curve is a parameter describing the ability of a soil to hold water; it is modulated by soil structure and texture. The aim of this paper is to evaluate the feasibility of using clay content to estimate water retention curve ...
XIA Tian, TIAN Juncang
doaj   +1 more source

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

open access: yes, 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   +3 more
core   +1 more source

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

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

open access: yes, 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   +7 more
core   +2 more sources

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

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

open access: yes, 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.   +5 more
core   +1 more source

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 and shrinkage curves of weathered pyroclastic soil [PDF]

open access: yesE3S Web of Conferences, 2020
The modelling of the triggering mechanism of rainfall-induced landslides in slopes covered by pyroclastic soil (as the area surrounding Mount Vesuvius in Campania, Italy) requires the hydraulic characterization of soil in unsaturated conditions in order to analyse the slope response to rainfalls. In previous studies carried out on Campanian pyroclastic
Dias A. S.   +3 more
openaire   +5 more sources

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