Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.1/3130
Título: Multicriteria analysis for design of microirrigation systems. Application and sensitivity analysis
Autor: Pedras, Celestina M. G.
Pereira, Luís S.
Palavras-chave: Microirrigation design
Multicriteria analysis
Criteria weights
Concordance and discordance
Thresholds
Ranking
Data: 2009
Editora: Elsevier
Citação: Agricultural Water Management. ISSN 0378-3774. 96(4) (2009) 702-710
Resumo: This paper presents a practical application of the DSS MIRRIG for the design of a microirrigation system for a citrus orchard in Algarve (Portugal). Several alternatives were considered using different emitter types (drippers, sprayers, pressure-compensating and non-pressure compensatingemitters), different pipe sizesandlayouts withand without pressure regulation valves, as well as different pressure head and discharge at the upstream end of the systems. This application is described and the ranking of alternative designs is analysed using the weights given by the farmer to the hydraulic, economic and environmental criteria. An analysis of impacts resulting from selecting different weights is presented aimed at understanding the sensitivity of the model in relation to those criteria. In addition, a sensitivity analysis is performed to test the robustness of the algorithms used for ranking with respect to changes in concordance and discordance threshold values, which show that the values selected by the model are those providing for a more clear ranking of design alternatives.
Peer review: yes
URI: http://hdl.handle.net/10400.1/3130
ISSN: 0378-3774
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S0378377408002631
Aparece nas colecções:FCT2-Artigos (em revistas ou actas indexadas)

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