Experimental assessment of shade-cloth covers on agricultural reservoirs for irrigation in south-eastern Spain
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AuthorMartínez Álvarez, Víctoriano; Maestre Valero, José Francisco; Martín Górriz, Bernardo; Gallego Elvira, Belén
Knowledge AreaIngeniería Agroforestal
SponsorsThe authors acknowledge the Fundación Séneca (Murcia, Spain) and the Ministerio de Educación y Ciencia (Spain) for the financial support of this study through grants 02978/PI/05 and PET2005_0056, respectively.
PublisherInstituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)
Bibliographic CitationMARTÍNEZ ÁLVAREZ, V., MAESTRE VALERO, J.F., MARTÍN GORRIZ, B., GALLEGO ELVIRA, B. Experimental assessment of shade-cloth covers on agricultural reservoirs for irrigation in south-eastern Spain. Spanish Journal of Agricultural Research, 8 (S2): S122-S133, 2010. ISSN 1695-971-X
KeywordsAhorro de agua
Concentración de algas
Textiles de polietileno
[ENG]Agricultural water reservoirs (AWRs) are commonly used to guarantee water supply throughout the whole irrigation season in arid and semiarid areas. An important fraction of the total stored water is lost through evaporation, substantially decreasing overall irrigation efficiency. In this study, the effects of suspended shade cloth covers (SSCCs) on reducing evaporation and on the quality of the stored water have been experimentally assessed. To this aim, an AWR located in south-eastern Spain was monitored during two consecutive years. During the first year, the AWR remained uncovered, while during the second year it was covered with a black polyethylene SSCC. The evaporation rate, the water temperature profile and the driving meteorological variables determining evaporation were measured to assess the technical viability of the cover. Evaporation measurements for covered conditions were compared with estimations obtained from an openwater evaporation model which was validated ...
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