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Automated Imhoff cone calibration and soil loss/infiltration analysis for furrow irrigation studies

Lentz, R.D. and Sojka, R.E. (1994) Automated Imhoff cone calibration and soil loss/infiltration analysis for furrow irrigation studies. pp. 858-863. In: Watson, G. and Zazueta, F.S. and Harrison, T.V. (eds.) Proc. Computers in Agriculture 1994. USA-FL-Orlando, 1994/02/05-09. ASAE, 2950 Niles Rd., St. Joseph, MI 49085-9659.


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Furrow-irrigation-induced soil erosion is a serious threat to sustainable agriculture globally. The significance of this threat has been fully appreciated only recently, resulting in increased interest in irrigation-erosion studies. Analysis of infiltration and runoff data from furrow-irrigation research is cumbersome and time consuming because calibration functions relating sediment settling-volumes in Imhoff cones to sediment concentration must be obtained for each treatment. Moreover, the manipulation of water and constituent runoff data for plotting and treatment comparison is awkward and tedious. The Pascal program described in this paper (FUROFIGR) reads experimental data from a text file and derives, displays, and statistically compares Imhoff calibration functions for any user-defined furrow group. It employs the computed or a user-supplied calibration function to calculate infiltration, runoff, and sediment loss for each furrow. Additional software (SEDTIME, PLOTSED) computes and plots group-averaged values for cumulative sediment loss and outflow sediment concentration as a function of irrigation duration. This software represents a significant advance over existing manual calculation techniques or previously reported software.

Item Type: Conference or Workshop Item (Paper)
NWISRL Publication Number: 0830
Subjects: Irrigation > Furrow irrigation > Infiltration
Irrigation > Furrow irrigation > Runoff losses
Research methodology
Mass Import - autoclassified (may be erroneous)
Depositing User: Michelle Wayment
Date Deposited: 13 Mar 2008 21:50
Last Modified: 29 Nov 2016 19:05
Item ID: 1066

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