Results 1 to 10 of about 19,852 (162)

Soil Water Retention Curve as Affected by Sample Height [PDF]

open access: yesRevista Brasileira de Ciência do Solo, 2018
: The soil water retention curve is one of the main instruments to assess the soil physical quality and to improve soil management. Traditionally, the equipment most used in the laboratory to determine the retention curve has been Haines funnels and ...
Maria Laiane do Nascimento Silva   +2 more
doaj   +3 more sources

Chemical migration during soil water retention curve evaluation [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2011
Wetting and drying (W-D) cycles can induce important elemental migrations in soils. The main purpose of this work was to study the possible existence of soil chemical elemental migrations in samples submitted to repeated W-D cycles during evaluations of ...
Luiz F. Pires   +4 more
doaj   +5 more sources

Determination of strain-dependent soil water retention characteristics from gradation curve

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2020
The importance of soil water retention characteristics in modelling the hydro-mechanical response of unsaturated soils has been well recognised by many investigators in recent years.
Min Wang   +3 more
doaj   +3 more sources

SimuIating landsIides using two-phase two-point material point method [PDF]

open access: yesE3S Web of Conferences, 2023
Material point method (MPM) is an effective numerical method for large-deformation analysis under unsaturated conditions. In the previous studies, water retention ability and permeability function were assumed to be Independent of soil deformation ...
Zhan Zhiqi, Zhou Chao
doaj   +1 more source

On some problems of researches on soil-water retention curve

open access: yesYantu gongcheng xuebao, 2023
Three problems in the current researches on soil-water retention characteristics are analyzed and discussed, and the following main conclusions are drawn. The soil-water retention characteristics are one of the constitutive relations of unsaturated soils,
CHEN Zhenghan 1, MIAO Qiangqiang 2, GUO Nan 3, CHENG Xiang 1
doaj   +1 more source

Evaluating The Ability of Parametric Pedotransfer Functions for Estimating The Wetting Branch of The Soil Water Retention Curve (Case study: Boinzahra) [PDF]

open access: yesعلوم و مهندسی آبیاری, 2016
Soil water retention curve in many studies, including simulating the movement of water and solutes, irrigation and drainage issues is required. This soil hydraulic property was determined by direct (field and laboratory) and indirect methods.
Ali Azad pour   +2 more
doaj   +1 more source

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

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

Modeling the soil-water retention curves for highly deforming soils [PDF]

open access: yesMATEC Web of Conferences, 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   +2 more
doaj   +1 more source

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