Results 11 to 20 of about 20,125 (259)
Modeling the soil-water retention curves for highly deforming soils [PDF]
MATEC 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
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In situ estimation of soil hydraulic and hydrodispersive properties by inversion of electromagnetic induction measurements and soil hydrological modeling [PDF]
Hydrology 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
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Soil-water characteristic of biochar-clay mixture in the full suction range
Rock 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
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Parametric soil water retention models: a critical evaluation of expressions for the full moisture range [PDF]
Hydrology 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
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Pedotransfer functions for point and parametric estimations of soil water retention curve
Plant, 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
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Relating Hydraulic Conductivity Curve to Soil-Water Retention Curve Using a Fractal Model
Mathematics, 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
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Parameter estimation of soil water retention curve with Rao-1 algorithm
Journal of Agricultural Engineering, 2022 The soil water retention curve (SWRC) has a significant role in determining the unsaturated properties of soil. A stochastic optimization algorithm named Rao-1 algorithm is employed to estimate the parameters of the SWRC model in this paper.
Zhongju Wang, Chao Huang, Long Wang
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Yantu gongcheng xuebao, 2021 In order to study the water retention curve of remolded loess with different degrees of compaction, the self-made low suction measurement device, tensiometer and GDS unsaturated soil triaxial apparatus were used to measure the water retention curve of ...
WANG Lai-cai 1, 2, HU Hai-jun 1, 2, WANG Chen 1, 2, KANG Shun-xiang 1, 2
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Yantu 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
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Using Clay Content to Estimate Soil Water Characteristic Curve
Guan'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
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