Experimental assessment of shade-cloth covers on agricultural reservoirs for irrigation in south-eastern Spain
Author
Martínez Álvarez, Víctoriano; Maestre Valero, José Francisco; Martín Górriz, Bernardo; Gallego Elvira, BelénKnowledge Area
Ingeniería AgroforestalSponsors
The 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.Publication date
2010Publisher
Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)Bibliographic Citation
MARTÍNEZ 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-XPeer review
siKeywords
Ahorro de aguaConcentración de algas
Conductividad eléctrica
Evaporación
Textiles de polietileno
Viabilidad económica
Water saving
Algae concentration
Electrical conductivity
Evaporation
Polyethylene meshes
Economic viability
Abstract
[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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