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This article in SSSAJ

  1. Vol. 34 No. 2, p. 309-311
     
    Received: May 15, 1969
    Accepted: Oct 24, 1969


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doi:10.2136/sssaj1970.03615995003400020035x

Variations in Tension Lysimeter Leachate Volumes1

  1. P. H. Cochran,
  2. Giles M. Marion and
  3. Albert L. Leaf2

Abstract

Abstract

Leachate volumes collected with tension plate lysimeters placed in a glacial outwash soil and maintained at a fixed tension varied from 1.9–629.9% of the total water applied through rainfall and/or irrigation. The amounts of K passing through plates at depths of 152 cm ranged from 0.02–86.1% of that applied at the surface. These differences were attributed to several factors including (i) nonuniform application of water, (ii) large differences in soil moisture retention and flow properties for individual strata, and (iii) irregularity of soil strata arrangement at different locations within the study area. Lateral flow to plate surfaces can result in large overestimates of the nutrient flux at a given soil depth.

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