Limites na utilização de um modelo de balanço hídrico decendial em função da capacidade de água disponível no solo - DOI: 10.4025/actasciagron.v30i2.1721

Jorge Luiz Moretti de Souza Filho; Siguifrid Gomes

doi:10.4025/actasciagron.v30i2.1721

Limitations in the use of a ten-day water balance model, based on available water capacity in the soil - DOI: 10.4025/actasciagron.v30i2.1721

Jorge Luiz Moretti de Souza Filho UFPR
Siguifrid Gomes UFPR

DOI: https://doi.org/10.4025/actasciagron.v30i2.1721

Keywords: simulation, AWC, available water, irrigation, agricultural irrigation

Abstract

The objective of this work was to evaluate the limitations of a ten-day climatic water balance model to simulate irrigation in four different Paraná State regions. Sixty-eight water balance scenarios were tested to allow the relationship among crop evapotranspiration (Etc), probable precipitation at 75% level (P75%), soil available water capacity (AWC) and annual water deficiency (DEF). The results showed that: the model estimates its components better for greater values of available water (AW) in the soil; the ideal AWC value to process the irrigation analyses based on variations of ETo, Kc and Etc should be established in the model itself. However, if the condition "larger ten-day ETo ≤ AW" of the period is valid, the water balance produces consistent results for 10 days periodicity

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Author Biography

Jorge Luiz Moretti de Souza Filho, UFPR

Possui graduação em Engenharia Agrícola pela Universidade Federal de Lavras (1989), mestrado em Irrigação e Drenagem pela Universidade de São Paulo (1992) e doutorado em Irrigação e Drenagem pela Universidade de São Paulo (2001). Atualmente é professor adjunto nível IV da Universidade Federal do Paraná, consultor das revistas científicas Scientia Agraria (UFPR) e Acta Scientiarum (Maringá). Tem experiência na área de Engenharia Agrícola, com ênfase em Engenharia de Água e Solo, atuando principalmente nos seguintes temas: planejamento e desenvolvimento de modelos matemáticos voltados ao desenvolvimento sustentável do meio rural e urbano, principalmente uso racional da água e energia elétrica para irrigação Currículo Lattes

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Published

2008-04-03

How to Cite

Souza Filho, J. L. M. de, & Gomes, S. (2008). Limitations in the use of a ten-day water balance model, based on available water capacity in the soil - DOI: 10.4025/actasciagron.v30i2.1721. Acta Scientiarum. Agronomy, 30(2), 153-163. https://doi.org/10.4025/actasciagron.v30i2.1721

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Issue

Vol 30 No 2 (2008)

Section

Agricultural Engineering

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