Recirculating furrow infiltrometer design guide

Blair, Allie W. and Trout, Thomas J. (1989) Recirculating furrow infiltrometer design guide. Techical Report CRWR No. 223. Center for Research in Water Resources, University of Texas at Austin, Austin, Texas. 21 pp.

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Abstract

Determination of infiltration parameters is critical for the design and
operation of efficient furrow irrigation systems. The complexity of the physical
processes which govern infiltration in furrows, and the nonhomogeneous, anisotropic
conditions which often exist in irrigated fields, have hindered the development of an
infiltration theory which can accurately predict infiltration rates based on easily
measured soil parameters. Therefore, the practicing irrigation engineer continues to
depend on direct measurement of infiltration using infiltrometers or volume balance
methods for determining field infiltration during continuous flow or surge flow furrow
irrigation. Volume balance methods use advance, surface storage, inflow, and outflow
data collected during an irrigation event to determine the infiltration parameters.
Elliott and Eisenhauer (1983) outline the details of several volume balance methods for
continuous flow irrigation. Latortue (1984) outlines a volume balance technique for
estimating infiltration and surface storage for surge flow irrigation. The infiltration
parameters determined from these methods are likely to be more representative of
average field conditions than data obtained from an infiltrometer.

Item Type:	Technical Bulletin
NWISRL Publication Number:	0672
Subjects:	Research methodology Mass Import - autoclassified (may be erroneous)
Depositing User:	Dan Stieneke
Date Deposited:	20 Nov 2010 21:58
Last Modified:	25 Oct 2016 19:31
Item ID:	1189
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/1189