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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: Michelle Wayment
Date Deposited: 20 Nov 2010 21:56
Last Modified: 14 Nov 2016 15:50
Item ID: 892

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