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Influence of irrigation water properties on furrow infiltration: Temperature effects

La influencia de las Propiedades del Agua de irrigación en la Infiltración en Surcos: Efectos de Temperatura

Lentz, R.D. and Bjorneberg, D.L. (2002) Influence of irrigation water properties on furrow infiltration: Temperature effects. pp. 705-709. In: Stott, D.E. and Mohtar, R.H. and Steinhardt, G.C. (eds.) Proc. 10th International Soil Conservation Organization Meeting. Sustaining the Global Farm (2001). USA-IN-West Lafayette (Purdue University / USDA-ARS National Soil Erosion Research Lab), 1999/05/24-29.

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For surface irrigation, the rate and spatial
characteristics of infiltration processes influence crop
productivity, water use efficiency, and erosion potential
of stream flows. A change in infiltration rate alters
furrow stream flow velocity and shear, and hence
irrigation-induced erosion. Furrow irrigation models
may be improved if they can account for the influence of
water properties on these processes. Water temperature
may influence furrow infiltration by altering fluid
viscosity. We conducted laboratory soil column intake
(constant head), and field recirculating furrow
infiltrometer experiments, to determine whether
irrigation water temperature significantly altered
infiltration. The soil was Portneuf silt loam (coarse-silty,
mixed superactive, mesic, Durinodic Xeric Haplocalcids).
Soil column intake increased by 0.8 to 3.0 percent per
degree C. This increase was not significantly different
from that observed for furrows, 2.0 to 2.9% deg.-1. While
more field studies are needed, these data show that
diurnal and seasonal changes in irrigation water
temperature can significantly alter furrow infiltration
and stream flow. These effects may help explain observed
field-infiltration variability. Inclusion of temperature
algorithms in furrow irrigations models may increase
their predictive accuracy.

Item Type: Conference or Workshop Item (Paper)
NWISRL Publication Number: 1066
Additional Information: also published on CD-ROM
Subjects: Irrigation > Furrow irrigation > Infiltration
Mass Import - autoclassified (may be erroneous)
Depositing User: Users 6 not found.
Date Deposited: 20 Nov 2010 21:56
Last Modified: 14 Nov 2016 15:50
Item ID: 892