Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/5930
Título: MIRRIG: a decision support system for design and evaluation of microirrigation systems
Autor: Pedras, C.M.G.
Pereira, L.S.
Gonçalves, J.M.
Palavras-chave: drip irrigation
microsprinkling irrigation
irrigation performance
multicriteria analysis
Data: 2009
Editora: Elsevier
Citação: "Agricultural Water Management". ISSN 0378-3774. 96(4) (2009) 691-701
Resumo: The decision support system (DSS) MIRRIG has been developed to support the design of microirrigation systems and to advise farmers as a result of field evaluations. It is written in Visual Basic 6.0, runs in a Windows environment, and uses a database with information on emitters and pipes available in the market, as well as on crops, soils and the systems under design. MIRRIG is composed by design and simulation models and a multicriteria analysis model that ranks alternative design solutions based upon an integration of technical, economic and environmental criteria. User friendly windows are adopted for handling the databases and to manage the sub-models. The model allows creating and comparing a set of design alternatives relative to the pipe system and the emitters, either drip or microsprinkling emitters. For each alternative, the pipe system is sized and the irrigation system is simulated to produce performance, environmental and economic indicators. These include uniformity of water application, potential for contamination with agrochemicals due to water percolation, and installation and operation costs. Those indicators are used as attributes of the selected criteria. All alternatives are then compared and ranked through multicriteria analysis where the weights giving the relative importance of the adopted criteria are defined by the user. These procedures allow selecting the best design alternative and solving the complexities involved in the design of microirrigation systems. The model is available from the website www://ceer.isa.utl.pt/cms
Peer review: yes
URI: http://hdl.handle.net/10400.5/5930
ISSN: 0378-3774
Versão do Editor: www.elsevier.com/locate/agwat
Aparece nas colecções:DER - Artigos de Revistas

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