Different types of damage in mountain forest stands of the Czech Republic
Lomsky, B.(Vyzkumny Ustav Lesniho Hospodarstvi a Myslivosti, Jiloviste-Strnady (Czech Republic))E-mail:[email protected] | Sramek, V.
The evolution of the impact of sulphur emissions on forest stands in Ore Mts. region (Czech Republic) between the years 1995-2002 is described. Severe damages to spruce and birch stands were observed during the studied period, even if the sulphur emissions has considerably dicreased since the year 1989. For example, during the winter 1995/1996 about 12,578 ha of spruce stands were damaged, trees on 1,300 ha has died. In 1997 about 3,400 ha of birch stands were damaged, in 1998 it was nearly 5,430 ha, trees on 2,550 ha has died. In 2001 about 9,000 ha of spruce stands were damaged. New damages were observed after the winter 2001/2002. Nitrogen deposition seemed to be one of the major problems. The damages of forest trees show that, in spite of significant lowering of air pollution, the health of forest ecosystems in Ore Mts. is not stabilized.
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