The contribution of wood products to carbon sequestration in Portugal

SUMMARY Carbon sequestration in wood products, in Portugal, was estimated for the 1990-2000, using two accounting approaches: the stock-change approach and the atmospheric-flow approach. The results obtained with the two approaches indicate that wood products were a net sink of carbon throughout the studied period. A sensitivity analysis was also performed, showing that the results are significantly affected by the parameters related with the lifetime of the wood products (annual decay rates and fractions allocated to longlived products), the carbon fraction in paper and paperboard and the biomass conversion factor of sawnwood and wood-based panels.

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