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Article

Infiltration under Ponded Conditions

Laboratory of Agricultural Hydraulics, Department of Natural Resources Management and Agricultural Engineering, School of Environment & Agricultural Engineering, Agricultural University of Athens, 75 Iera Odos Street, 11855 Athens, Greece
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Academic Editors: Roberto Greco, George Kargas, Petros Kerkides and Paraskevi Londra
Water 2021, 13(24), 3492; https://doi.org/10.3390/w13243492
Received: 6 October 2021 / Revised: 20 November 2021 / Accepted: 3 December 2021 / Published: 7 December 2021
(This article belongs to the Special Issue Study of the Soil Water Movement in Irrigated Agriculture Ⅱ)
Ponded infiltration processes occur in agricultural lands irrigated by flooding of their soil surface or under insufficient drainage conditions. The existing equations describing the phenomenon of vertical infiltration under ponded conditions have not considered the actual contribution of the pressure head gradient to the flow. In this study, simple equations are proposed to describe the horizontal and vertical infiltration under various ponding heads incorporating the actual contribution of the pressure head gradient to the flow. Six soils with known hydraulic properties, covering a wide range of soil textures, were used. Horizontal and vertical infiltration data are obtained by numerical simulation for all soils studied using the Hydrus-1D code. To validate the accuracy of the proposed equations, the solutions of horizontal and vertical infiltrations provided by the proposed equations were compared with numerically simulated ones provided by the Hydrus 1-D. The analysis of the results showed a very good agreement in all soils studied. The proposed vertical infiltration equation was also compared to a simple and accurate equation which does not incorporate the actual contribution of the pressure head gradient to the flow and differences between them were observed in all soils studied. View Full-Text
Keywords: ponding head; vertical infiltration; pressure head gradient; horizontal infiltration ponding head; vertical infiltration; pressure head gradient; horizontal infiltration
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MDPI and ACS Style

Argyrokastritis, I.; Psychogiou, M.; Londra, P.A. Infiltration under Ponded Conditions. Water 2021, 13, 3492. https://doi.org/10.3390/w13243492

AMA Style

Argyrokastritis I, Psychogiou M, Londra PA. Infiltration under Ponded Conditions. Water. 2021; 13(24):3492. https://doi.org/10.3390/w13243492

Chicago/Turabian Style

Argyrokastritis, Ioannis, Maria Psychogiou, and Paraskevi A. Londra. 2021. "Infiltration under Ponded Conditions" Water 13, no. 24: 3492. https://doi.org/10.3390/w13243492

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