EVALUATION OF MOISTURE CHARACTERISTIC MODELS AND ESTIMATION OF HYDRAULIC FUNCTIONS FOR A SANDY LOAM SOIL IN KHUZESTAN, IRAN

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KASHKOULI H.A.; ZEINALZADEH K.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Iranian Journal of Soil Research Year:2001 | Volume:15 | Issue:2 Page(s): 273-289

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Title

EVALUATION OF MOISTURE CHARACTERISTIC MODELS AND ESTIMATION OF HYDRAULIC FUNCTIONS FOR A SANDY LOAM SOIL IN KHUZESTAN, IRAN

Author(s)

KASHKOULI H.A. | ZEINALZADEH K. | Issue Writer Certificate

Keywords

VAN GENUCHTEN- MUALEM'S METHODSQ2

SAXTON MODELQ4

HUTSON AND CASS'S MODELQ4

Abstract

Unsaturated flow in porous media is described by Richards' equation. In order to use this equation, hydraulic conductivity function has to be specified. Brooks - Corey, van Genuchten and van Genuchten- Mualem' s methods have been used for the determination of this function for a Sandy Loam soil in Khuzestan. Undisturbed samples from a top soil were collected in metal cylinders for determination of soil moisture characteristics on sandbox tensiometer and in pressure plate apparatus. RETC program has been used for the derivation of the Van Genuchten's parameters. Results were compared with those obtained from methods suggested by Saxton et al. (1986), Gregson et al. (1987), and Hutson and Cass (1987). HUTSON AND CASS'S MODEL gave comparatively more accurate results. Saxton's model using only soil texture data also produced acceptable regression at high pressure head values.

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References

بررسی یک معادله جدید تخمین هدایت هیدرولیکی غیر اشباع خاک

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APA: Copy

KASHKOULI, H.A., & ZEINALZADEH, K.. (2001). EVALUATION OF MOISTURE CHARACTERISTIC MODELS AND ESTIMATION OF HYDRAULIC FUNCTIONS FOR A SANDY LOAM SOIL IN KHUZESTAN, IRAN. IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES, 15(2), 273-289. SID. https://sid.ir/paper/16024/en

Vancouver: Copy

KASHKOULI H.A., ZEINALZADEH K.. EVALUATION OF MOISTURE CHARACTERISTIC MODELS AND ESTIMATION OF HYDRAULIC FUNCTIONS FOR A SANDY LOAM SOIL IN KHUZESTAN, IRAN. IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES[Internet]. 2001;15(2):273-289. Available from: https://sid.ir/paper/16024/en

IEEE: Copy

H.A. KASHKOULI, and K. ZEINALZADEH, “EVALUATION OF MOISTURE CHARACTERISTIC MODELS AND ESTIMATION OF HYDRAULIC FUNCTIONS FOR A SANDY LOAM SOIL IN KHUZESTAN, IRAN,” IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES, vol. 15, no. 2, pp. 273–289, 2001, [Online]. Available: https://sid.ir/paper/16024/en

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