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One-dimensional Drainage of Soil ProfIle with Root Extraction


Citation

A. Zakaria, Abdul and Willardson, Lyman S. (1992) One-dimensional Drainage of Soil ProfIle with Root Extraction. Pertanika, 15 (2). pp. 145-150.

Abstract / Synopsis

A one-dimensiunal n1l1nrncalmodel was developed to solve an unsaturated flaw equation for a soil prafik that represents a soil-plant-water system with a shallow water table above an impermeable layer. The diffusivity form of the Richard's equation was solved using Crank Nicalson implicit finite difference scheme and a general Newton-Raphson interative method. The model was used to simulate volume tric moisture content, capillary pressure, and position of water tab. It was also used to simulate the cumulative soil water depltion" within" the soil profile. Result from the compare model compared re compared reasonably we" measured lysimeter data.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Keywords: drainage, numerical model, simulation, root extraction.
Depositing User: Nur Izzati Mohd Zaki
Date Deposited: 20 Nov 2009 16:49
Last Modified: 27 May 2013 15:05
URI: http://psasir.upm.edu.my/id/eprint/3030
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