Abstract
Peat bulk density, water content, and pH were studied on a raised bog in central Sweden with particular attention to the demand of the crops. Volume defined samples of the 0–30 cm soil layers were taken during 1981 and 1982 in order to find out seasonal patterns and between‐treatment variations of the soil characteristics. Four plots with different liming, fertilization, and irrigation regimes were included in the investigation. Two willow plots (Salix viminalis and S. dasyclados) and one plot with Alnus incana were all irrigated‐fertilized by drip tubes during the growing season while an unplanted reference plot was not. Large variations in the studied soil properties occurred within all the plots at any time, to a great extent depending on variations in the mixture of Eriophorum and Sphagnum in the peat. Peat bulk density tended to be higher in the irrigated‐fertilized plots than in the reference plot and averaged about 70 and 63 g . dm−3, respectively. Water content increased rapidly with depth in the ...
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