J. Derome et T. Nieminen, Metal and macronutrient fluxes in heavy-metal polluted Scots pine ecosystems in SW Finland, ENVIR POLLU, 103(2-3), 1998, pp. 219-228
Cu, Ni, Zn, SO4-S and macronutrient fluxes in Scots pine ecosystems were in
vestigated during 1992-1996 at distances of 0.5, 4 and 8 km from the Harjav
alta Cu-Ni smelter, SW Finland. The flux of water percolating down to a soi
l depth of 5 cm at 0.5 km was more than double that at 4 and 8 km. There wa
s a net loss of Zn from the 40-cm thick soil layer, but a net gain for Cu,
Ni and SO4-S. Copper was more strongly retained in the organic layer than N
i. Cu, Ni and Zn fluxes at 0.5 km were extremely large compared to those at
4 and 8 km. The fluxes of Ca, Mg, K and PO4-P to a depth of 5 cm at 0.5 km
distance were much higher than the input via bulk precipitation, and the f
lux of Mg higher than the input in throughfall. There was a net loss of Mg
and K at a depth of 40 cm compared to the input via bulk precipitation. (C)
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