EFFECT OF SLOPE ON SOIL WETTING PATTERN UNDER SURFACE DRIP IRRIGATION AND SIMULATION HYDRUS-2D MODEL

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HEIDARI ZEINAB; FARASATI MASOUMEH; GHOBADIAN RASOOL

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Paper Information

Journal: Journal of Water and Irrigation Management Year:2016 | Volume:5 | Issue:2 Page(s): 277-288

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Title

EFFECT OF SLOPE ON SOIL WETTING PATTERN UNDER SURFACE DRIP IRRIGATION AND SIMULATION HYDRUS-2D MODEL

Author(s)

HEIDARI ZEINAB | FARASATI MASOUMEH | GHOBADIAN RASOOL | Issue Writer Certificate

Keywords

MAXIMUM WET DEPTHQ2

MAXIMUM WET WIDTHQ2

MOISTURE PATTERNQ1

SLOPING LANDQ1

RICHARDS EQUATIONQ2

Abstract

In this study, effect of slope on soil wetting pattern under surface drip irrigation and simulation with HYDRUS-2D model evaluated. The physical model made of Plexiglas to size 83, 6 and 54 cm (length, width, height) filled with silty clay loam soil was used. To achieve the desired discharge, a small drip irrigation system created that includes a water tank with a fixed height (about 2 meters), a emitters regulated manually, and pipe transferring the water to emitters. Discharge was 4 L/hr and the slopes of selective were 0, 5, 15 and 25 percent. Irrigation time for each test was fixed and 2 hours. Readings of wet pattern was performed until 24 hours after irrigation and fixed wetting pattern. HYDRUS-2D model was Simulation selection model. To determine soil hydraulic parameters Rosetta model used. For The MAXIMUM WET DEPTH and MAXIMUM WET WIDTH obtained RMSE value between 1.44-3.4% that shows the error is low. The results showed that HYDRUS-2D model have high ability to simulate the wetting pattern flat and slope lands.

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APA: Copy

HEIDARI, ZEINAB, FARASATI, MASOUMEH, & GHOBADIAN, RASOOL. (2016). EFFECT OF SLOPE ON SOIL WETTING PATTERN UNDER SURFACE DRIP IRRIGATION AND SIMULATION HYDRUS-2D MODEL. JOURNAL OF WATER AND IRRIGATION MANAGEMENT, 5(2), 277-288. SID. https://sid.ir/paper/240124/en

Vancouver: Copy

HEIDARI ZEINAB, FARASATI MASOUMEH, GHOBADIAN RASOOL. EFFECT OF SLOPE ON SOIL WETTING PATTERN UNDER SURFACE DRIP IRRIGATION AND SIMULATION HYDRUS-2D MODEL. JOURNAL OF WATER AND IRRIGATION MANAGEMENT[Internet]. 2016;5(2):277-288. Available from: https://sid.ir/paper/240124/en

IEEE: Copy

ZEINAB HEIDARI, MASOUMEH FARASATI, and RASOOL GHOBADIAN, “EFFECT OF SLOPE ON SOIL WETTING PATTERN UNDER SURFACE DRIP IRRIGATION AND SIMULATION HYDRUS-2D MODEL,” JOURNAL OF WATER AND IRRIGATION MANAGEMENT, vol. 5, no. 2, pp. 277–288, 2016, [Online]. Available: https://sid.ir/paper/240124/en

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