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Estimation of Width and Depth of the Wetted Soil Volume Under a Surface Emitter, Considering Root Water-Uptake and Evaporation

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  • ST. Elmaloglou
  • N. Malamos

Abstract

A cylindrical flow model that describes local infiltration from a surface point source, by incorporating evaporation and water extraction by roots, was used to obtain numerical results that were the base for the development and testing of an empirical method for determining the surface and vertical components of the wetting front. The implementation of the mathematical model took place against two of the twelve USDA soil classes, using three water application rates for each one. The empirical methodology consisted of two simple, time dependent empirical relationships: a power law for the stage of the infiltration, which was applied in both directions and a polynomial for the stage after the end of the irrigation, applied only for the vertical component, to account for percolation losses. The statistical criteria used for the evaluation of the method showed good agreement between the numerical results and the values calculated by the empirical relationships. Based on the limited availability of necessary experimental data for detailed analysis of multidimensional transient infiltration, the introduction of such an empirical model, as a design tool for trickle irrigation systems, may contribute to the selection of the optimum application rate and lateral spacing. Copyright Springer Science + Business Media B.V. 2007

Suggested Citation

  • ST. Elmaloglou & N. Malamos, 2007. "Estimation of Width and Depth of the Wetted Soil Volume Under a Surface Emitter, Considering Root Water-Uptake and Evaporation," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 21(8), pages 1325-1340, August.
    • Handle: RePEc:spr:waterr:v:21:y:2007:i:8:p:1325-1340
    DOI: 10.1007/s11269-006-9084-5
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    References listed on IDEAS

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    1. Oron, Gideon, 1981. "Simulation of water flow in the soil under sub-surface trickle irrigation with water uptake by roots," Agricultural Water Management, Elsevier, vol. 3(3), pages 179-193, March.
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    Cited by:

    1. Zhang, Youliang & Feng, Shaoyuan & Wang, Fengxin & Feng, Ren & Nie, Wei, 2022. "Effects of drip discharge flux and soil wetted percentage on drip irrigated potato growth with film mulch," Agricultural Water Management, Elsevier, vol. 272(C).
    2. Hojjat Ghorbani Vaghei & Hossein Ali Bahrami & Farzin Nasiri Saleh, 2023. "Optimizing Soil Moisture in Subsurface Irrigation System Based on Porous Clay Capsule Technique," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 37(8), pages 3037-3051, June.
    3. Ghasem Zarei & Mehdi Homaee & Abdolmajid Liaghat, 2009. "Modeling Transient Evaporation from Descending Shallow Groundwater Table Based on Brooks–Corey Retention Function," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 23(14), pages 2867-2876, November.
    4. Stamatios Elmaloglou & Konstantinos Soulis & Nicholas Dercas, 2013. "Simulation of Soil Water Dynamics Under Surface Drip Irrigation from Equidistant Line Sources," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 27(12), pages 4131-4148, September.
    5. Jose Gutierrez Gnecchi & Arturo Mendez Patiño & Fernando Landeros Paramo & Adriana del Carmen Tellez Anguiano & Daniel Lorias Espinoza, 2015. "Investigation of Wetting Front Propagation Dynamics Using Soil Impedance Measurements: Implications for Modelling and Irrigation Scheduling," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 29(1), pages 197-210, January.
    6. Kilic, Murat, 2020. "A new analytical method for estimating the 3D volumetric wetting pattern under drip irrigation system," Agricultural Water Management, Elsevier, vol. 228(C).

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