EVALUATING AND OPTIMIZING THE PARAMETERS OF SOIL INFILTRATION MODELS IN LIGHVAN WATERSHED (NORTHWEST OF IRAN)

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RAHMATI M.; NEYSHABOURI M.R.; MOHAMMADI OSKOOEI M.; FAKHERI FARD A.; AHMADI A.; MOUSAVI S.B.

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Journal: Journal of Water and Soil Conservation Year:2016 | Volume:22 | Issue:6 Page(s): 1-20

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Title

EVALUATING AND OPTIMIZING THE PARAMETERS OF SOIL INFILTRATION MODELS IN LIGHVAN WATERSHED (NORTHWEST OF IRAN)

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Keywords

DISC INFILTROMETERQ2

GREEN AND AMPT MODELQ2

LIGHVAN WATERSHEDQ2

SOIL INFILTRATIONQ2

PHILIP MODELQ1

Abstract

Background and Objectives: Several empirical models have been presented to describe water infiltration into soil. In order to make them applicable in different places, the mentioned models need to be calibrated in different conditions. Therefore, the current research was aimed to optimize parameters of different models using point measurements at LIGHVAN WATERSHED located in east Azarbayjan.Materials and Methods: Current research was carried out in LIGHVAN WATERSHED, East Azarbayjan, northwest of Iran which is located in longitudes of 46ᵒ 22' 23" E to 46ᵒ 28' 05" E and latitudes of 37ᵒ 43' 07" N to 37ᵒ 50' 08" N. Selected infiltration models include Green and Ampt, Kostyakov and modified Kostyakov, Philip, Horton and Philip’s triplex models. In order to fulfill this research, soil sampling and field measurements were conducted at late spring of 2012. In this regard, cumulative infiltration were measured in 135 different place of the study area using DISC INFILTROMETER.Results: Based on evaluation error (EE) ceriteria Philip’s triplex model (EE=4%), Kostyakov (EE=8%), modified Kostyakov (EE=10%), Horton (EE=13%), Green and Ampt (EE=36%) and Philip (EE=37%) models had the most to least accuracy for cumulative infiltration prediction, respectively. Among the different soil texture classes (clay loam, loam, sandy clay loam and sandy loam), all applied models in this research except Horton model showed the best conformity in clay loam soil texture class.Conclusion: The results revealed that the Kostyakov and modified Kostyakov models are more suitable for cumulative infiltration and infiltration rates predictions. Therefore, we suggested the mentioned model to be applied in simliar condtion of the LIGHVAN WATERSHED.

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APA: Copy

RAHMATI, M., NEYSHABOURI, M.R., MOHAMMADI OSKOOEI, M., FAKHERI FARD, A., AHMADI, A., & MOUSAVI, S.B.. (2016). EVALUATING AND OPTIMIZING THE PARAMETERS OF SOIL INFILTRATION MODELS IN LIGHVAN WATERSHED (NORTHWEST OF IRAN). JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 22(6), 1-20. SID. https://sid.ir/paper/156357/en

Vancouver: Copy

RAHMATI M., NEYSHABOURI M.R., MOHAMMADI OSKOOEI M., FAKHERI FARD A., AHMADI A., MOUSAVI S.B.. EVALUATING AND OPTIMIZING THE PARAMETERS OF SOIL INFILTRATION MODELS IN LIGHVAN WATERSHED (NORTHWEST OF IRAN). JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2016;22(6):1-20. Available from: https://sid.ir/paper/156357/en

IEEE: Copy

M. RAHMATI, M.R. NEYSHABOURI, M. MOHAMMADI OSKOOEI, A. FAKHERI FARD, A. AHMADI, and S.B. MOUSAVI, “EVALUATING AND OPTIMIZING THE PARAMETERS OF SOIL INFILTRATION MODELS IN LIGHVAN WATERSHED (NORTHWEST OF IRAN),” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 22, no. 6, pp. 1–20, 2016, [Online]. Available: https://sid.ir/paper/156357/en

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