Water movement in a structured soil in the south-east of Ireland: preliminary evidence for preferential flow

Authors

  • Michael Ryan Teagasc

DOI:

https://doi.org/10.55650/igj.1998.371

Abstract

A study was carried out on a structured soil in the south-east of Ireland to investigate How patterns of water in soil. Dissolved Acid Red dye was allowed infiltrate the soil from the surface. Thereafter the dyed soil profiles were exposed and the pattern of movement of the dye was recorded. Infiltration measurements, under tension, were also undertaken on the same soil at several soil depths and these were compared with tensionless infiltration. The results provided preliminary evidence for preferential How in the soil. Nitrate leaching data, from a grazing study, tended to confirm the results. The importance of preferential How with regard to movement of manures and chemicals towards groundwater, which will depend on the timing of the application of those substances and the occurrence of significant rainfall events is discussed. Soils having physical characteristics conducive to preferential flow are illustrated.

Author Biography

Michael Ryan, Teagasc

Johnstown Castle. Wexford

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Published

2015-01-06

How to Cite

Ryan, M. (2015). Water movement in a structured soil in the south-east of Ireland: preliminary evidence for preferential flow. Irish Geography, 31(2), 124–137. https://doi.org/10.55650/igj.1998.371

Issue

Vol. 31 No. 2 (1998): Issue 2

Section

Original Articles

URN

http://nbn-resolving.de/urn:irg:ie:0000-igj.v31i2.3711

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