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Canopy annual litterfall production in 18 Norway spruce stands in Finland was studied and predictive models developed. The stands ranged in age from 32 to 163 years old and located at latitudes from 60 to 68°N. Stand litterfall had been continuously collected using 6–12 traps per stand for periods of 1–43 years. Dry weight annual total litterfall production (LF total ) values ranged from 44...
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