Modelo numérico de simulación del flujo de agua en el suelo afectado por la absorción de la raíz
DOI:
https://doi.org/10.4995/ia.2022.16531Palabras clave:
simulación del riego, ecuación de Richards, aproximación macroscópica, circuito-RC, método explícito, riego por goteoResumen
El artículo presenta un programa basado en un método explícito de integración por diferencias finitas para la simulación del flujo de agua en el suelo bajo condiciones de riego por goteo superficial en régimen variable (suelo no saturado). El programa original, que simula el movimiento del agua en suelo desnudo, fue validado por comparación con soluciones analíticas, otros modelos numéricos y ensayos experimentales; a este código, recientemente se le ha añadido una subrutina que simula la absorción de la raíz de la planta mediante un modelo de aproximación macroscópica que depende explícitamente del tiempo. Este trabajo presenta los detalles del modelo numérico de absorción de la raíz así como algunas de sus simulaciones.
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