Research Article
Jun 1976
Water Movement in Soil from Trickle Source
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VIEW THE REPLYAuthors: Ahmed Y. Hachum, AM.ASCE, Lyman S. Willardson, M.ASCE, and Jose F. AlfaroAuthor Affiliations
Publication: Journal of the Irrigation and Drainage Division
Volume 102, Issue 2
Abstract
A two-dimensional water movement within a homogeneous soil profile from a surface water line source was investigated. In the experiment, various trickle water application rates were used to irrigate two types of soil. The effect of soil type and water application rate on the movement and distribution of water within the soil profile were considered. The experiment revealed that for the same volume of water, the vertical penetration of wetting front decreased and the horizontal water movement increased as the water application rate increased. The water movement in the horizontal and vertical directions was described by an exponential equation and the two-dimensional wetting pattern in the soil profile was approximated by a semiellipse without a significant loss of accuracy. A general mathematical consideration, utilizing the results of the present work for designing a trickle irrigation system, is presented. A simple field test for obtaining system design parameters is described.
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Published In
Journal of the Irrigation and Drainage Division
Volume 102 • Issue 2 • June 1976
Pages: 179 - 192
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Jun 1976
Published online: Feb 11, 2021
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Authors
Affiliations
Ahmed Y. Hachum, AM.ASCE
Grad. Student, Dept. of Agr. and Irrigation Engrg., Utah State Univ., Logan, Utah
Lyman S. Willardson, M.ASCE
Prof. of Agr. and Irrigation Engrg., Utah State Univ., Logan, Utah
Jose F. Alfaro
Assoc. Prof., Dept. of Agr. and Irrigation Engrg., Utah State Univ., Logan, Utah
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.