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Revista de Ciências Agrárias

Print version ISSN 0871-018X


SERAFIM, A.; RODRIGUES, C.  and  LISBOA, A.. Model of irrigation management on green spaces. Rev. de Ciências Agrárias [online]. 2010, vol.33, n.1, pp.50-57. ISSN 0871-018X.

The presented Model of Irrigation Man­agement was designed for application on green spaces and leisure areas. The Model recognizes water as a produc­tion key-factor and optimizes its use on the irrigation of green spaces, giving particular attention to the temporal and spatial varia­tion of input variables. Variables entered in the Model included existing or future target plant species, phenological phases, type of soil (i.e. loca­tion and physical characteristics), topogra­phy and climate factors. Model construction was similar to the methods outlined in FAO Report 56, namely: the method of Penman-Monteith for the calculation of reference evapotran­spiration, the use of dual cultural coeffi­cients to obtain cultural evapotranspiration and the opportunity of irrigation according to the hydric balance. The Model integrates the programming of algorithms implemented in Visual Basic 6, VB6 and a Geographic Information System (GIS). The Model provides the irrigation pa­rameters in real-time scale, the timings for irrigation, depth per irrigation, the period of irrigation, time between two irrigation epi­sodes, and for the sprinkle irrigation, the mean application rate and the degree of pul­verization. The Model is used in association with an automatic weather station and irrigation sys­tem.

Keywords : Green spaces; irrigation man­agement; irrigation on green spaces; garden irrigation.

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