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pedotransfer functions

Using of pedotransfer functions for assessment of hydrolimits

Using of pedotransfer functions for assessment of hydrolimits

... Soil hydrologic coefficients, also called hydrolimits, are soil water contents defined for certain values of water potentials. Closer attention is paid to three hydrolimits: field capacity, point of decreased ...

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Pedotransfer functions for Irish soils – estimation of bulk density ( b ) per horizon type

Pedotransfer functions for Irish soils – estimation of bulk density ( b ) per horizon type

... However, bulk density has been found to vary with depth (Leonaviˇciut˙e, 2000) and soil type (Manrique and Jones, 1991), while the use of generic pedotransfer functions can result in large errors in the ...

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Updated European hydraulic pedotransfer functions with communicated uncertainties in the predicted variables (euptfv2)

Updated European hydraulic pedotransfer functions with communicated uncertainties in the predicted variables (euptfv2)

... Abstract. Soil hydraulic properties are often derived indirectly, i.e. computed from easily available soil properties with pedotransfer functions (PTFs), when those are needed for catchment, regional or ...

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Verification of Appropriateness of Selected Pedotransfer Functions for the Basic Use in Agriculture of the Czech Republic

Verification of Appropriateness of Selected Pedotransfer Functions for the Basic Use in Agriculture of the Czech Republic

... so-called pedotransfer functions ...suitable pedotransfer functions necessary for basic agricultural production with the requirement of minimal amount of input ...the pedotransfer ...

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Local and catchment scale validation of soil hydraulic pedotransfer functions for an Indonesian watershed

Local and catchment scale validation of soil hydraulic pedotransfer functions for an Indonesian watershed

... one of 11 possible USDA texture classes, then both class and continuous pedotransfer functions were developed. It is widely used (cited 435 times as of 26/10/15) and used in many comparative studies (like ...

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Preliminary investigation to estimate soil NAPL retention using parametric pedotransfer functions

Preliminary investigation to estimate soil NAPL retention using parametric pedotransfer functions

... with pedotransfer functions might be a promis- ing alternative method, but this topic has only been researched to a limited ...hydraulic functions (3- and 4- parameter form of the van Genuchten ...

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Deriving pedotransfer functions for soil quartz fraction in southern France from reverse modeling

Deriving pedotransfer functions for soil quartz fraction in southern France from reverse modeling

... Abstract. The quartz fraction in soils is a key parameter of soil thermal conductivity models. Because it is dif- ficult to measure the quartz fraction in soils, this information is usually unavailable. This source of ...

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Pedotransfer Functions for Cation Exchange Capacity, Available Water Holding Capacity and Soil Organic Carbon for Representative Soils of Southern Highland Zone of Tanzania

Pedotransfer Functions for Cation Exchange Capacity, Available Water Holding Capacity and Soil Organic Carbon for Representative Soils of Southern Highland Zone of Tanzania

... of pedotransfer functions have been done in the temperate regions (Young, 1999), some evaluation of such pedotransfer functions has been done in sub-Saharan Africa (Mdemu, 2015); the ...

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Mapping soil hydraulic properties using random forest based pedotransfer functions and geostatistics

Mapping soil hydraulic properties using random forest based pedotransfer functions and geostatistics

... Abstract. Spatial 3-D information on soil hydraulic proper- ties for areas larger than plot scale is usually derived using indirect methods such as pedotransfer functions (PTFs) due to the lack of measured ...

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Research Note:Determination of soil hydraulic properties using pedotransfer functions in a semi arid basin, Turkey

Research Note:Determination of soil hydraulic properties using pedotransfer functions in a semi arid basin, Turkey

... various pedotransfer functions (PTFs) are used to estimate soil hydraulic properties for a small semi-arid basin (Kurukavak) in the north-west of ...

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Functional test of pedotransfer functions to predict water flow and solute transport with the dual permeability model MACRO

Functional test of pedotransfer functions to predict water flow and solute transport with the dual permeability model MACRO

... Predicting solute transport, and especially early solute break- through due to preferential flow, without measuring any model parameters and without calibration, is a challenge. Nonetheless, although model efficiencies ...

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Using Two Pedotransfer Functions to Estimate Soil Moisture Retention Curves From One Experimental Site of ​​South Moravia

Using Two Pedotransfer Functions to Estimate Soil Moisture Retention Curves From One Experimental Site of ​​South Moravia

... The soil moisture retention curves (SMRCs) were measured in laboratory conditions. The sand table and pressure extractor method were used to obtain a 9-point SMRCs for undisturbed soil samples taken from 20 cm depth. The ...

5

Sensitivity analysis of point and parametric pedotransfer functions for estimating water retention of soils in Algeria

Sensitivity analysis of point and parametric pedotransfer functions for estimating water retention of soils in Algeria

... Abstract. Improving the accuracy of pedotransfer functions (PTFs) requires studying how prediction uncer- tainty can be apportioned to different sources of uncertainty in inputs. In this study, the question ...

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Development of Pedotransfer Functions for Saturated Hydraulic Conductivity

Development of Pedotransfer Functions for Saturated Hydraulic Conductivity

... [4] noted that data from existing international soil data bases having measured soil data can be analyzed to enable prediction of hydraulic characteristics from measured soil data. Availability of measured soil hydraulic ...

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Developing global pedotransfer functions to estimate available soil phosphorus

Developing global pedotransfer functions to estimate available soil phosphorus

... Developing Global Pedotransfer Functions to Estimate Available Soil Phosphorus.. Brevik3*, Paulo Pereira4, Mojtaba.[r] ...

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Point pedotransfer functions for estimating soil water retention curve

Point pedotransfer functions for estimating soil water retention curve

... A b s t r a c t. Soil water retention curve (SWRC) is one of the most important soil hydraulic properties, whose estimation is still under consideration. In this study, we used 315 soil samples from the UNSODA database ...

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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

... of pedotransfer functions for soil water retention curves was used for the estimation of field capacity and wilting point of agricultural land resource on a countrywide ...class pedotransfer ...

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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)

... continuous pedotransfer functions were applied to the data from a selected locality in the Czech Republic, ...continuous pedotransfer functions were derived, following the methodology used in ...

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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

... Thus, like the van Genuchten model, the fractal model has four fitting parameters. It is an advantage of this model that it is mathematically more easily accessible to the ana- lytical solutions of flow equations than ...

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Test of the Rosetta Pedotransfer Function for Saturated Hydraulic Conductivity

Test of the Rosetta Pedotransfer Function for Saturated Hydraulic Conductivity

... as pedotransfer functions (PTFs) have been developed to reduce the effort and cost ...predictive functions of certain soil pro- perties estimated from other simpler measured soil proper-ties ...

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