Nizinski Georges, Ziernicka-Wojtaszek A., Ksiazek L., Gawronski K., Montoroi Jean-Pierre, Zaghloul A., Ali R. R., Saber M. (2017). Actual evapotranspiration of the orange orchard in Northern Sinai, Egypt. Acta Scientiarum Polonorum-Formatio Circumiectus, 16 (4), p. 187-203. ISSN 1644-0765.
Titre du document
Actual evapotranspiration of the orange orchard in Northern Sinai, Egypt
Nizinski Georges, Ziernicka-Wojtaszek A., Ksiazek L., Gawronski K., Montoroi Jean-Pierre, Zaghloul A., Ali R. R., Saber M.
Source
Acta Scientiarum Polonorum-Formatio Circumiectus, 2017,
16 (4), p. 187-203 ISSN 1644-0765
Studies on soil-water management in the Nile Delta and Northern Sinai (Egypt) were carried out in 2011-2013 by the Institut de Recherche pour le Developpement. The El-Salam orange orchard was selected as a 'standard' station to study the management of appropriate irrigation, including the development of a model to assist in the management of irrigation of other crop covers in the Nile Delta. The model simulated actual evapotranspiration with a one-day step resolution, using the approach of Penman-Monteith (with daily input data, i.e. standard data from the national network of weather stations), by taking account of the specificity of the crop cover (cover resistance). We compared the amounts of irrigation applied to the orange orchard (I-mean = 994.3 mm.year(-1); 2.7 mm.day(-1); crop coefficient Ea/ET0 = 0.78) with the requirements of water estimated by the model (Ea(simulated)). This comparison enabled us to propose a daily amount required for irrigation. It is reasonable to sustain water losses of 94,570 m(3) water.year(-1) for the total area of the plantation (80 ha; drainage from the root zone), that is, 1,182 m(3) water.year(-1) . ha(-1). These water losses involve hydraulic adjustment of the sites of crop production and the costs of routing water.
