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Description: The temporal and spatial relations of soil water with interception drainage of a side-hill saline seep area, cropped partly to alfalfa, in southern Alberta was charac terized from 1986 to 1988. The three interceptor drains were at a depth of 1.55,1.67, and 1.78 m, respectively, approximately midway down the drainfield. Their effect on phreatic level and soil-water content was more pronounced upslope than downslope from the drainlines. Soil-water content in the 0 -1.50 m depth decreased over time with increase in depth to watertable. Spatially, the soil water indicated a critical depth of capillary rise of water from the wa tertable of between 1.60 and 2.00 m, with the latter depth substantiated by simulation analysis. These improvements in soilwater regime and phreatic level will aid in assessing the adequacy of interception drainage for salinity control and crop production.

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Citation: G.J. BEKE, D.P. GRAHAM and T. ENTZ 1993. Effects of a subsurface interception drainage system on soil moisture regime in a saline-seep area. Canadian Agricultural Engineering 35(3):175-181.
Volume: 35
Issue: 3
Pages -
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Date: 1993
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Type: Text.Article
Format: PDF
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Coverage: Canada
Language 1: en
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Rights: Canadian Society for Bioengineering
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