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Soil-water retention

Effect of gypsum content on soil water retention

Effect of gypsum content on soil water retention

... more water at near saturation conditions than did the gypseous ...the soil water retention curve is very ...of soil gypsum content on the water retention curve and the ...

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Evaluation of compost influence on soil water retention

Evaluation of compost influence on soil water retention

... on soil water retention. Soil retention is a major soil water property that governs soil functioning as a ...ecosystem. Soil moisture forms a major buff er ...

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Suitability of Soil Water Retention Characteristic Models (SWRC) in Regions and Soil Depth

Suitability of Soil Water Retention Characteristic Models (SWRC) in Regions and Soil Depth

... Abstract Soil Water Retention Characteristics (SWRC) models have been widely used in many ...different soil depths and different regions of the ...

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Soil water retention and hydraulic conductivity dynamics following tillage

Soil water retention and hydraulic conductivity dynamics following tillage

... Soil water retention curves at all four sampled soil layers showed pronounced changes with time ...the water retention curves were the most similar over the ...lower water ...

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Point pedotransfer functions for estimating soil water retention curve

Point pedotransfer functions for estimating soil water retention curve

... model, soil texture data ie sand, silt, and clay content, geometric mean particle-size diameter and geometric standard deviation as well as bulk density were used to develop point PTFs at 10 matric ...model, ...

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Soil water retention curve and hydraulic soil in coffee crop conilon submitted to subsoiling

Soil water retention curve and hydraulic soil in coffee crop conilon submitted to subsoiling

... costeiros. SOIL WATER RETENTION CURVE AND HYDRAULIC SOIL IN COFFEE CROP CONILON SUBMITTED TO SUBSOILING ABSTRACT: The objective of this study was to evaluate the effect of tillage, ...

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Prediction of Soil Water Retention and Available Water of Sandy Soils using Pedotransfer Functions

Prediction of Soil Water Retention and Available Water of Sandy Soils using Pedotransfer Functions

... predicts soil water at a pre defined suction, while function pedotransfers directly estimate hydraulic parameters of a closed-form equation [3- 4], such as artificial neural network (ANN) ...predict ...

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Soil Water Retention: Uni-Modal Models of Pore-Size Distribution Neglect Impacts of Soil Management

Soil Water Retention: Uni-Modal Models of Pore-Size Distribution Neglect Impacts of Soil Management

... DISCUSSION Model Fit The Dex model provided a better fit to soil water retention data than the vanG model for the Jacobsen glacial till top- and subsoils. This was also true for contrasting ...

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Soil Water Retention: Uni-Modal Models of Pore-Size Distribution Neglect Impacts of Soil Management

Soil Water Retention: Uni-Modal Models of Pore-Size Distribution Neglect Impacts of Soil Management

... 322 DISCUSSION 323 Model fit 324 The Dex model provided a better fit to soil water retention data than the vanG model for the 325 Jakobsen glacial till top- and subsoils. The same was the case for ...

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Identifying a parameterisation of the soil water retention curve from on ground GPR measurements

Identifying a parameterisation of the soil water retention curve from on ground GPR measurements

... the soil water retention curve, ...fluctuating water table, while an on-ground GPR antenna recorded traces over time at a fixed ...the soil. The typical dynamics of soil ...

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Soil water retention and gross primary productivity in the Zábrod area in the Šumava Mts

Soil water retention and gross primary productivity in the Zábrod area in the Šumava Mts

... and soil water retention was studied in the experimental area Zábrod – Meadow in the Šumava ...and soil water retention are the crucial factors determining the hydrologic pattern ...

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Estimation of the soil water retention curve (SWRC) using pedotransfer functions (PTFs)

Estimation of the soil water retention curve (SWRC) using pedotransfer functions (PTFs)

... of Soil Science and geology, Faculty of agrobiology, Food and natural Resources, Czech university of life Sciences in prague, prague, Czech Republic Abstract: Soil hydraulic characteristics, especially the ...

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New pedotransfer function (“CRC”) for the prediction of unsaturated soil hydraulic conductivity using soil water retention data

New pedotransfer function (“CRC”) for the prediction of unsaturated soil hydraulic conductivity using soil water retention data

... deducing soil hydraulic data from non- hydraulic soil data such as soil texture and bulk density, yield soil water retention predictions, but do not provide information ...

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Estimation of soil water retention curve using some agrophysical and Voronins empirical dependence

Estimation of soil water retention curve using some agrophysical and Voronins empirical dependence

... s: water retention curve, pedotransfer functions, method verification, approach comparison INTRODUCTION In connection with the wide use of dynamic models for agro-meteorological calculations and yield ...

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Parametric soil water retention models: a critical evaluation of expressions for the full moisture range

Parametric soil water retention models: a critical evaluation of expressions for the full moisture range

... by soil texture, and by the geometry of the packing of the individual ...the soil may consist of aggregates ...decayed, soil fauna, ...the soil texture (Durner, 1994), even though a certain ...

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Review of Soil Water Retention Characteristic (SWRC) Models between Saturation and Oven Dryness

Review of Soil Water Retention Characteristic (SWRC) Models between Saturation and Oven Dryness

... Abstract Soil water retention characteristic is the key soil property used in many applications in the fields of irrigation, hydrology, geotechnical engineering and soil science in ...

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A global data set of soil hydraulic properties and sub-grid variability of soil water retention and hydraulic conductivity curves

A global data set of soil hydraulic properties and sub-grid variability of soil water retention and hydraulic conductivity curves

... Russo and Bresler (1980), as well as Warrick et al. (1977), showed that scale factors for soil water retention and unsat- urated hydraulic conductivity are not necessarily identical. However, ...

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A global data set of soil hydraulic properties and sub-grid variability of soil water retention and hydraulic conductivity curves

A global data set of soil hydraulic properties and sub-grid variability of soil water retention and hydraulic conductivity curves

... a soil sample) or location ...of soil hydraulic properties in one single scaling parame- ter rather than having to specify the statistics for each sin- gle hydraulic parameter (Warrick et ...and soil ...

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Shear Strength Behavior and Soil Water Retention Curve of a Dual Porosity Silt-Bentonite Mixture

Shear Strength Behavior and Soil Water Retention Curve of a Dual Porosity Silt-Bentonite Mixture

... of soil shear strength is an important step in the stability analysis of earth structures, foundations and natural ...unsaturated soil is dictated by the suction ...the water table and the ...

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Biochar Source and Application Rate Effects on Soil Water Retention Determined Using Wetting Curves

Biochar Source and Application Rate Effects on Soil Water Retention Determined Using Wetting Curves

... a soil amendment. Biochar application to soil has resulted in agronomic benefits, including improved water-holding ...in soil water retention, especially when the soil is ...

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