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This article in SSSAJ

  1. Vol. 56 No. 5, p. 1625-1628
    Received: Oct 7, 1991

    * Corresponding author(s):


Lysimeters Without Edge Flow: An Improved Design and Sampling Procedure

  1. K. C. Cameron ,
  2. N. P. Smith,
  3. C. D. A. McLay,
  4. P. M. Fraser,
  5. R. J. McPherson,
  6. D. F. Harrison and
  7. P. Harbottle
  1. Department of Soil Science, Lincoln Univ., Canterbury, New Zealand



A description is given of a modified lysimeter design and sampling procedure designed to prevent edge flow from occuring in large soil monolith lysimeters. An internal cutting ring at the base of the lysimeter casing produced a small annular gap between the soil monolith and the wall of the casing. This gap was filled with liquefied petrolatum, which provided a water-tight seal around the edge of the lysimeter. Water and solutes were unable to leak between the monolith and casing. The use of petrolatum as a sealant is suitable for water-flux and nutrient-leaching studies, but is not suitable for pesticide studies.

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