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This article in SSSAJ

  1. Vol. 52 No. 4, p. 1192-1193
     
    Received: May 29, 1987
    Published: July, 1988


    * Corresponding author(s):
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doi:10.2136/sssaj1988.03615995005200040056x

A New Technique for Evaluating the Presence of Preferential Flow Paths in Nonstructured Soils

  1. H. C. van Ommen ,
  2. L. W. Dekker,
  3. R. Dijksma,
  4. J. Hulshof and
  5. W. H. van der Molen
  1. Dep. of Land and Water Use, Agric. Univ., Nieuwe Kanaal 11, 6709 PA Wageningen, Netherlands

Abstract

Abstract

A new technique for determining the presence of preferential flow paths in a nonstructured soil profile is described. The presented method is easily applicable in the field, and is based on the formation of an intensely colored complex of I2 with starch. Moreover, the method can be applied to all kinds of nonstructured soils, irrespective of their color. An illustration of the technique is given in case of water and solute movement in a water-repellent soil, where formation of preferential flow paths was known to occur.

Contribution of the Dep. of Land and Water Use, Agric. Univ., and the Netherlands Soil Survey Inst., P.O. Box 98, 6700 AB Wageningen, Netherlands.

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