One-dimensional drainage of soil profile with root extraction

Abdul A.Z., . and Willardson L.S., . One-dimensional drainage of soil profile with root extraction. pp. 145-150. ISSN 0126-6128

A one-dimensional numerical model was developed to solve an unsaturated flow equation for a soil profile 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 interactive method. The model was used to simulate volumetric moisture content capillary pressure and position of water table. It was also used to simulate the cumulative soil water depletion within the soil profile. Result from the computer model compared reasonally well with the measured lysimeter data

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Abstract

A one-dimensional numerical model was developed to solve an unsaturated flow equation for a soil profile 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 interactive method. The model was used to simulate volumetric moisture content capillary pressure and position of water table. It was also used to simulate the cumulative soil water depletion within the soil profile. Result from the computer model compared reasonally well with the measured lysimeter data

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Item Type:	Article
Additional Information:	5 fig.; 10 ref.; Summaries (En Ms)
AGROVOC Term:	PERFIL DEL SUELO
AGROVOC Term:	SIMULACION
AGROVOC Term:	MOVIMIENTO DEL AGUA EN EL SUELO
AGROVOC Term:	DRENAJE
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:56
URI:	http://webagris.upm.edu.my/id/eprint/20590

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