THE COMPARISON OF METHODS FOR DETERMINING THE VERTICAL INFILTRATION RATE

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NESHAT A.; PAREHKAR M.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2007 | Volume:14 | Issue:3 Page(s): 186-195

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Information Journal Paper

Title

THE COMPARISON OF METHODS FOR DETERMINING THE VERTICAL INFILTRATION RATE

Author(s)

NESHAT A. | PAREHKAR M. | Issue Writer Certificate

Keywords

KOSTIAKOVQ3

GREEN-AMPTQ3

HORTONQ3

SOIL CONSERVATION SERVICE (SCS)Q3

PHILIPQ3

Abstract

In this research, the rate of vertical infiltration was evaluated and compared using cylinder infiltrometer method to determine the coefficients of 5 infiltration models, called KOSTIAKOV,-Green- Ampt, HORTON, Soil Conservation Service (SCS) and PHILIP. In 82 regions, in addition to agrology profile, soil physics properties and required parameters, infiltration was also performed 3 times by using cylinder infiltrometer. Infiltration parameters (such as time cumulative infiltration, infiltration rate, and average infiltration rate) were estimated by using above mentioned infiltration models and compared to measured amounts. The model with the most explanation coefficient (R2) and the least variance (S2) were introduced as the best model. The study of infiltration on 3 types of soil texture as clay, loam and clay loam showed that KOSTIAKOV was the most suitable model for estimating cumulative infiltration and infiltration rate in all conditions. By increasing the duration of infiltration test, results showed that the coefficients of KOSTIAKOV model had more fluctuation in comparison to other models and using the coefficients of HORTON and KOSTIAKOV models which were the basis of experimental data in a short duration had a considerable error for estimating cumulative infiltration in a long duration. So, it was found that PHILIP and SCS models were more suitable in a long duration.

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APA: Copy

NESHAT, A., & PAREHKAR, M.. (2007). THE COMPARISON OF METHODS FOR DETERMINING THE VERTICAL INFILTRATION RATE. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 14(3), 186-195. SID. https://sid.ir/paper/9734/en

Vancouver: Copy

NESHAT A., PAREHKAR M.. THE COMPARISON OF METHODS FOR DETERMINING THE VERTICAL INFILTRATION RATE. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2007;14(3):186-195. Available from: https://sid.ir/paper/9734/en

IEEE: Copy

A. NESHAT, and M. PAREHKAR, “THE COMPARISON OF METHODS FOR DETERMINING THE VERTICAL INFILTRATION RATE,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 14, no. 3, pp. 186–195, 2007, [Online]. Available: https://sid.ir/paper/9734/en

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