EFFECTS OF PHOSPHORUS APPLICATION ON VASCULAR PLANTS AND MACROFUNGI IN AN ACID BEECH FOREST SOIL

Analytical grade H3PO4, or base cation phosphates, were supplied to an acid beech forest soil (dystric cambisol) in south Sweden at the rate of 115, 23 and 23 kg P ha-1 during the first, second and third year, respectively. Out of six frequent field-layer species, vegetative grow th of Galium odoratum, Lamium galeobdolon and Stellaria holostea was e nhanced by the increased P availability, especially when measured as s hoot weight and P supplied as base cation phosphates. Melica uniflora, Oxalis acetosella and Viola riviniana/reichenbachiana seemed unaffect ed by the treatments. Neither application had any measurable effect on the sporophore production or species richness of ectomycorrhizal or d ecomposer macrofungi during the 5 year study.