EVALUATION OF PEDOTRANSFER FUNCTIONS TO SIMULATE WETTING BRANCH OF SOIL WATER CHARACTERISTIC CURVE AND UNSATURATED HYDRAULIC CONDUCTIVITY CURVE

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RASOULZADEH A.; RAZAVI GHALEHJOUG S.; NEYSHABOURI M.R.

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Journal: Journal of Water and Soil Conservation Year:2013 | Volume:20 | Issue:4 Page(s): 201-218

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Title

EVALUATION OF PEDOTRANSFER FUNCTIONS TO SIMULATE WETTING BRANCH OF SOIL WATER CHARACTERISTIC CURVE AND UNSATURATED HYDRAULIC CONDUCTIVITY CURVE

Author(s)

RASOULZADEH A. | RAZAVI GHALEHJOUG S. | NEYSHABOURI M.R. | Issue Writer Certificate

Keywords

PEDOTRANSFER FUNCTIONSQ2

WETTING BRANCH OF SOIL WATER RETENTION CURVEQ2

UNSATURATED HYDRAULIC CONDUCTIVITYQ2

Abstract

Water flow and solute transport modeling in the vadose zone requires understanding of soil hydraulic properties such as soil water retention curve and UNSATURATED HYDRAULIC CONDUCTIVITY. Direct measurements of these hydraulic properties using field and laboratory technique which are called the direct methods are costly and time consuming. Indirect determination of these properties using PEDOTRANSFER FUNCTIONS as suitable replacement for direct measurements has been of interest to researchers. PEDOTRANSFER FUNCTIONS were commonly used to estimate drying branch of soil water retention curve in different study. Evaluation of PEDOTRANSFER FUNCTIONS to estimate the WETTING BRANCH OF SOIL WATER RETENTION CURVE has rarely been considered. In this study, accuracy of Rosetta and SoilPar software as well as PEDOTRANSFER FUNCTIONS of Rawls and Brakensiek and Saxton to estimate WETTING BRANCH OF SOIL WATER RETENTION CURVE and UNSATURATED HYDRAULIC CONDUCTIVITY were studied and evaluated. Shani method known as dripper method was used to measure WETTING BRANCH OF SOIL WATER RETENTION CURVE and UNSATURATED HYDRAULIC CONDUCTIVITY. Statistical criteria including RMSE, MAE and E' were used to compare the accuracy of the PEDOTRANSFER FUNCTIONS to estimate the WETTING BRANCH OF SOIL WATER RETENTION CURVE and UNSATURATED HYDRAULIC CONDUCTIVITY. Results showed that simulated soil water retention curve using PEDOTRANSFER FUNCTIONS were not consistent with the measured soil water retention curve. Comparison statistical criteria values showed that PEDOTRANSFER FUNCTIONS of Rawls and Brakensiek which was used to estimate parameters of Campbell's and Brooks and Corey's UNSATURATED HYDRAULIC CONDUCTIVITY models had approximately good yield than the others PEDOTRANSFER FUNCTIONS.

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APA: Copy

RASOULZADEH, A., RAZAVI GHALEHJOUG, S., & NEYSHABOURI, M.R.. (2013). EVALUATION OF PEDOTRANSFER FUNCTIONS TO SIMULATE WETTING BRANCH OF SOIL WATER CHARACTERISTIC CURVE AND UNSATURATED HYDRAULIC CONDUCTIVITY CURVE. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 20(4), 201-218. SID. https://sid.ir/paper/156539/en

Vancouver: Copy

RASOULZADEH A., RAZAVI GHALEHJOUG S., NEYSHABOURI M.R.. EVALUATION OF PEDOTRANSFER FUNCTIONS TO SIMULATE WETTING BRANCH OF SOIL WATER CHARACTERISTIC CURVE AND UNSATURATED HYDRAULIC CONDUCTIVITY CURVE. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2013;20(4):201-218. Available from: https://sid.ir/paper/156539/en

IEEE: Copy

A. RASOULZADEH, S. RAZAVI GHALEHJOUG, and M.R. NEYSHABOURI, “EVALUATION OF PEDOTRANSFER FUNCTIONS TO SIMULATE WETTING BRANCH OF SOIL WATER CHARACTERISTIC CURVE AND UNSATURATED HYDRAULIC CONDUCTIVITY CURVE,” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 20, no. 4, pp. 201–218, 2013, [Online]. Available: https://sid.ir/paper/156539/en

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