Water Table Fluctuation between Drains in the Presence of Exponential Recharge and Depth-Dependent Evapotranspiration
Publication: Journal of Irrigation and Drainage Engineering
Volume 133, Issue 2
Abstract
A linearized form of the Boussinesq equation was solved analytically to predict the water table fluctuation in subsurface drained farmland in the presence of recharge and evapotranspiration (ET). The recharge was assumed to be variable with time and the ET considered decreasing linearly with a decrease in the water table height above the drains. The proposed analytical solution was verified for special cases with the existing solutions. There was a close match between the solutions. Applications of the solution in prediction of the water table height in a drainage system are illustrated with the help of physical examples.
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Acknowledgments
The first writer is highly thankful to the Head, Irrigation and Drainage Engineering Division and the Director, Central Institute of Agricultural Engineering, Bhopal and Indian Council of Agricultural Research, New Delhi, India, for granting study leave and sponsoring him to carry out studies toward a doctoral degree at G. B. Pant University of Agriculture and Technology, Pantnagar (Uttaranchal), India.
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Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 133 • Issue 2 • April 2007
Pages: 183 - 187
Copyright
© 2007 ASCE.
History
Received: Oct 20, 2003
Accepted: Mar 17, 2006
Published online: Apr 1, 2007
Published in print: Apr 2007
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