The effect of liming and correction fertilisation on heavy metal and macronutrient concentrations in soil solution in heavy-metal polluted Scots pinestands
J. Derome et A. Saarsalmi, The effect of liming and correction fertilisation on heavy metal and macronutrient concentrations in soil solution in heavy-metal polluted Scots pinestands, ENVIR POLLU, 104(2), 1999, pp. 249-259
Two experiments were established in 1992 in Scots pine stands (Pinus sylves
tris L.) on relatively infertile sites at distances of 0.5 and 8 km to the
SE of the Cu-Ni smelter at Harjavalta, SW Finland, in order to investigate
the effects of liming, correction fertiliser and site-specific fertiliser t
reatments on heavy metal and nutrient concentrations in the soil solution.
Liming decreased soil solution acidity at 8 km, but increased it at 0.5 km.
At 8 km liming brought about a long-term increase in the Ca and Rig concen
trations, and correction fertilisation a corresponding long-term increase i
n the K concentrations. The situation at 0.5 km was the opposite; despite t
he increase immediately after application, there was a long-term reduction
in the Ca concentrations as a result of the liming, and correction and stan
d-specific fertilisation. At 0.5 km all the treatments containing varying d
oses of limestone clearly decreased the Cu, Ni and Zn concentrations in soi
l solution during 1993-1995 compared to the control. (C) 1999 Elsevier Scie
nce Ltd.. All rights reserved.