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Forestry 1972 45(2):135-143; doi:10.1093/forestry/45.2.135
© 1972 by Institute of Chartered Foresters
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Soil Aeration Response to Draining Intensity in Basin Peat

J. C. LEES

Northern Forest Research Centre, Department of the Environment Edmonton, Alberta

Improvement in soil aeration was assessed following draining to a range of intensity on a peatland afforestation project at Flanders Moss in Central Scotland. A polarographic technique was used to measure oxygen diffusion rates in the rooting zone of lodgepole pine (Pinus contorta Dougl. var. latifolia Engelm.) planted in 1965 on ploughed furrows. There were soil aeration differences because of draining intensity. Below the planting turf oxygen diffusion rates rapidly decreased and tree rooting was restricted to the surface layers. Aeration was found to be closely correlated with depth of water in boreholes which provide a simple and reliable index of response to draining. Oxygen diffusion rate was a more sensitive means of assessing soil aeration than oxidation-reduction potential at the low oxygen concentrations encountered in the basin peat on the Moss.


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