Sistema de suporte a decisão para alocação de água em projetos de irrigação. / Decision support system for water allocation in irrigation projects.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

In this work, an adaptation in the ModSimLS surface reservoir has been made in order to make it work as a soil reservoir. The model is called IrrigaLS. When compared to the water balance method, it was ascertained that IrrigaLS is suitable for determining supplementary and/or total irrigation demands. The model adaptation considers agricultural production as a result from water-weather-plant-soil factors interaction. The model capability to simulate complex water resources systems has been tested by comparing the results of IrrigaLS with a similar simulation model (ModSimLS) where the irrigation demands were computed using traditional water balance methods. It was ascertained that the model is suitable for simulating complex water resources systems and it has some advantages over ModSimLS, that are: it determines the real water needs of the culture; it guarantees a minimum water supply to the crop during dry periods, it guarantees water saving by the inclusion of rainfall and by the possibility to choose the soil moisture target; it distinguishes the crops in relation to the water deficit sensibility and it calculates the soil daily water balance.

ASSUNTO(S)

sistemas de suporte à decisão modelos de rede de fluxo network flow simulation models water resourse planning and manegement decision support systems planejamento e gestão de recursos hídricos operação de sistemas de irrigação operation of irrigation systems

ACESSO AO ARTIGO

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