The relationship between soil aeration, stability and growth of sitka spruce (Picea sitchensis (Bong.) Carr.) on upland peaty gleys.
The relationship between soil oxygen status and the growth and stability of Sitka Spruce was investigated in a plantatation in Northumberland showing early signs of wind-throw. Soil anaerobiosis occurred in all but the top 10-15 cm of the profile in winter. The better aeration in the upper part of the profile was associated with reduced soil water potential. The largest and most stable trees occurred in areas which had slightly improved soil aeration. A cultivation treatment is suggested which might improve tree growth and stability in seasonally waterlogged areas.