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Open Access item Sprinkler evaporation losses in alfalfa during solid-set sprinkler irrigation in semiarid areas
Faci González, José María
Howell, Terry A.
Zapata Ruiz, Nery
|Citation:||Stambouli T, Martínez-Cob A, Faci JM, Howell T, Zapata N. Sprinkler evaporation losses in alfalfa during solid-set sprinkler irrigation in semiarid areas. Irrigation Science 31 (5): 1075-1089 (2013)|
|Abstract:||Gross sprinkler evaporation losses (SELg) can be large and decrease irrigation application efficiency.
However, it is not universally established how much of the SELg contributes to decrease the crop
evapotranspiration during the sprinkler irrigation and how much are the net sprinkler losses (SELn).
The components of SEL were the wind drift and evaporation losses (WDEL) and the water intercepted
by the crop (IL). The gross WDEL (WDELg) and evapotranspiration (ET) were measured
simultaneously in two alfalfa (Medicago sativa L.) plots, one being irrigated (moist, MT) and the other
one not being irrigated (dry, DT). Catch can measurements, mass gains and losses in the lysimeters
and micrometeorological measurements were performed to establish net WDEL (WDELn) during the
irrigation and net IL (ILn) after the irrigation as the difference between ETMT and ETDT. Also, equations
to estimate ILn and net sprinkler evaporation losses (SELn) were developed. ILn was strongly related to
vapor pressure deficit (VPD). SELn were 8.3% of the total applied water. During daytime irrigations,
SELn was 9.8% of the irrigation water and slightly less than WDELg (10.9%). During nighttime
irrigations SELn were slightly greater than WDELg (5.4% and 3.7%, respectively). SELn was mainly a
function of wind speed.|
|Description:||49 Pags., 3 Tabls., 6 Figs. The definitive version is available at: http://link.springer.com/journal/271|
|Publisher version (URL):||http://dx.doi.org/10.1007/s00271-012-0389-2|
|E-ISSNmetadata.dc.identifier.doi = DOI:||1432-1319|
|Appears in Collections:||(EEAD) Artículos|
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