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Description: Much of the estimated 100 000 ha of non-irrigated and 50 000 ha of irrigated land that has become waterlogged and saline in Southern Alberta could benefit from subsurface drainage. In some of these areas, inexpensive mole drainage may be feasible. Mole drainage has been used success fully in England since the 18th century (Hudson et al. 1962). There, the effective life of mole drains varies from days to decades, and averages 10-15 yr (Nicholson 1946). In the U.S.A., mole drainage has not been used extensively except in organic soils where at best it was only temporary (Fouss and Donnan 1962). With the introduction of corrugated plastic tubing and new methods for rapid installation, interest in mole drainage has diminished in North America (Raadsma 1974). Moles often fail to function as drains. Childs (1942) in a generalized statement indicated that unsuitable soil conditions such as sand pockets and dry soil at the time of moling are causes for failures. He recognized organic matter and clay as factors that add the required stability to the soil, yet some soils with 60% clay content were unstable.

Keywords: soil moisture and texture effects on mole drain stability and on force requirement for installation
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Citation: Sommerfeldt, T. G. 1983. SOIL MOISTURE AND TEXTURE EFFECTS ON MOLE DRAIN STABILITY AND ON FORCE REQUIREMENT FOR INSTALLATION
Volume: 25
Issue: 1
Pages 1 - 4
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Date: 1983
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Coverage: Canada
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