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water retention curve (pF curve)

Point pedotransfer functions for estimating soil water retention curve

Point pedotransfer functions for estimating soil water retention curve

... Soil water retention curve (SWRC) is one of the most important soil hydraulic properties, whose estimation is still under ...model, water content at field capacity, and in the third model ...

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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)

... soil water retention curve and hydraulic conductivity, are indispensable input data for the simulation in agriculture, landscape management, and water-re- sources engineering and all possible ...

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Bimodal soil pore structure investigated by a combined soil water retention curve and X ray Computed Tomography approach

Bimodal soil pore structure investigated by a combined soil water retention curve and X ray Computed Tomography approach

... Bimodal pore structure of a paddy soil under different fertilization regimes investigated by soil water retention curve and X-ray Computed Tomography imaging Hu Zhou*1, Sacha Jon Mooney2[r] ...

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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

... soil water content (q, cm 3 cm -3 ) and the soil water (or matrix) potential (y, hPa) on the other, there is a real challenge to arrive at a reliable way to estimate parameters of the soil water ...

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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

... soil water retention curve, ...fluctuating water table, while an on-ground GPR antenna recorded traces over time at a fixed ...soil water content with a transient water table can ...

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Soil Water Retention Curve of an Unsaturated Sand Under Square Footing Considering Matric Suction

Soil Water Retention Curve of an Unsaturated Sand Under Square Footing Considering Matric Suction

... soil water characteristic curve of mining sand using pressure plate testing methods and found that initial water content and grain size has influence on ...in water content due to suction is ...

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Direct measurement of the soil water retention curve using X ray absorption

Direct measurement of the soil water retention curve using X ray absorption

... A second set of van Genuchten parameters is estimated from the multi-step outflow experiment performed with the identical sand column by solving the inverse problem of the Richards’ equation. A one-dimensional, ...

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Physical parameters of Fluvisols on flooded and non-flooded terraces

Physical parameters of Fluvisols on flooded and non-flooded terraces

... and water desorption methods. The cumulative curve obtained with these methods for the flooded profile 3 is positioned above the ones for profiles 1 and ...of water retention (WRC) data match ...

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Influence of Compaction Condition on the Microstructure of a Non-Plastic Glacial Till

Influence of Compaction Condition on the Microstructure of a Non-Plastic Glacial Till

... compaction water content on the structure has been well known for clayey soils, but has never been studied for granular ...of water retention curve study, scanning electron microscopy and ...

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Implementation of a physically based water percolation routine in the Crocus/SURFEX (V7.3) snowpack model

Implementation of a physically based water percolation routine in the Crocus/SURFEX (V7.3) snowpack model

... moves water, since refrozen liquid water is often the cause of crusts at the surface and inside the ...The water retention curve and hydraulic conductivity functions are not designed ...

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Experimental behaviour of a compacted silt used in a flood defence embankment in Indonesia

Experimental behaviour of a compacted silt used in a flood defence embankment in Indonesia

... soil water retention curve for the Bengawan Solo fill material obtained using three different methods: filter paper method, pressure plate method and ...

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Relationship between van Genuchten’s parameters of the retention curve equation
and physical properties of soil solid phase

Relationship between van Genuchten’s parameters of the retention curve equation and physical properties of soil solid phase

... the water retention curve is necessary for studying water availability for plants, plant water stress, infiltration, drainage, melioration as well as water and solutes movement ...

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Study of Using Paper Filter Whatman no.42 for Measuring Water Retention in Cement Paste

Study of Using Paper Filter Whatman no.42 for Measuring Water Retention in Cement Paste

... Comparing water retention curve on material concrete with Van Genuchten water retention curve on concrete C-15 and mortar M-1, there are different type of ...characteristic. ...

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Application of k Nearest code to the improvement of class pedotransfer functions and countrywide Field Capacity and Wilting Point maps

Application of k Nearest code to the improvement of class pedotransfer functions and countrywide Field Capacity and Wilting Point maps

... soil water retention curves was used for the estimation of field capacity and wilting point of agricultural land resource on a countrywide ...soil water retention curve in the whole ...

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Nuclear Magnetic Resonance Relaxometry and Thermoelectrodynamic Spectroscopy Study of Heat Accumulating/Emitting Salt CaCl2•6H2O

Nuclear Magnetic Resonance Relaxometry and Thermoelectrodynamic Spectroscopy Study of Heat Accumulating/Emitting Salt CaCl2•6H2O

... Н-bonds (lower and left vertical line).Alternative relaxation mechanism is not regarded, because translation of water during phase transition till melt is absent. Analysis of this paradox gives opportunity to make ...

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Considering rating curve uncertainty in water level predictions

Considering rating curve uncertainty in water level predictions

... RC models, however, should not be considered error-free for several reasons. First, the RC is based on streamflow data that are uncertain as they are calculated with a model (e.g. area-velocity method). Second, the ...

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The application of Gompertz curve in the curve fitting of urbanization

The application of Gompertz curve in the curve fitting of urbanization

... Gompertz curve was proposed in 1825 by ...Gompertz curve is similar to Logistic curve. As a common S-curve, it is often used to describe growth of some plants and economic ...Gompertz ...

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curve building

curve building

... of Curve Building” 5/11 Let’s take a step back and analyze the two ...LSR curve. At the short-end of the curve, the forward rate profile looks fairly ...CFR curve does not have any of these ...

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Survey on elliptical curve cryptography

Survey on elliptical curve cryptography

... Elliptic Curve Deterministic Random Bit Generation (or Dual _EC_DRBG) had been included as a NIST national standard due to the influence of NSA, which included a deliberate weakness in the algorithm and the ...

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Nonstationarity of the electrical resistivity and soil moisture relationship in a heterogeneous soil system: a case study

Nonstationarity of the electrical resistivity and soil moisture relationship in a heterogeneous soil system: a case study

... By analyzing 27 simulations from the WS model, our results highlight the sensitivity of VWC prediction to WS param- eters (standard deviation: 0.030–0.014 %). Outside the root zone, VWC values predicted by the WS model ...

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