© 1980 by Institute of Chartered Foresters
Tracing Water Movements, using Tritium, in a Peaty Gley Soil under Sitka Spruce
The Macaulay Institute for Soil Research Craigiebuckler, Aberdeen AB9 2QJ
Tritiated water was used as a tracer to investigate the movement of soil water in a peaty gley soil planted with Sitka spruce which has reached windthrow stage. The effects of three drainage treatments (different depths and spacings of ditches) were examined. Downward and lateral movement of tritium was observed in both the surface peaty horizon and in the mineral subsoil, with no evidence of either an impermeable horizon or a seepage layer. It was concluded, however, that at this site drainage treatment had less influence on water movement than ground topography.
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