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Published online 3 April 2006
Published in J Environ Qual 35:786-794 (2006)
DOI: 10.2134/jeq2005.0116
© 2006 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Sediment and Phosphorus Transport in Irrigation Furrows

D. L. Bjorneberga,*, D. T. Westermanna, J. K. Aasea, A. J. Clemmensb and T. S. Strelkoffb

a USDA-Agricultural Research Service, Northwest Irrigation and Soils Research Laboratory, 3793 N. 3600 E., Kimberly, ID 83341
b USDA-Agricultural Research Service, U.S. Water Conservation Laboratory, 4331 East Broadway Road, Phoenix, AZ 85040


Figure 1
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  		Fig. 1. Schematic diagram showing location of monitoring stations, inflow, and tail ditch for four furrows.

 

Figure 2
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  		Fig. 2. Flow rate (a) and dissolved reactive phosphorus (b), sediment (c), and total P (d) concentrations for a typical furrow during Irrigation 6 at the inflow point and Stations 1, 2, 3, and 4.

 

Figure 3
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  		Fig. 3. Average flow rate (a) and flow-weighted sediment (b), total P (c), and dissolved reactive phosphorus (DRP) (d) concentrations for each irrigation. Data points are monitoring stations within furrows (inflow and Stations 1, 2, 3, and 4). Bars show one standard deviation.

 

Figure 4
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  		Fig. 4. Average flow volume (a) and mass of sediment (b), total P (c), and dissolved reactive phosphorus (DRP) (d) transported per furrow during each irrigation. Data points are monitoring stations within furrows (inflow and Stations 1, 2, 3, and 4). Bars show one standard deviation.

 

Figure 5
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  		Fig. 5. Sediment and dissolved reactive phosphorus (DRP) concentration changes between Samples 1 and 2 (a) and 5 and 6 (b) for Irrigations 4, 5, and 6.

 




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