All charcoal is assumed (optimistically) to be
a fossil fuel substitute (substituting for mineral
coal as a heat source and reducing agent in
Brazil’s iron and steel industries). No adjustments
are made for differences in energy content
per t of C between coal and charcoal and for
proportions used for energy and iron reduction.
Pulpwood is all assumed to go into the
short-term wood products pool (average residence
time 0.5 years). Sawlog wood is assumed
to be allocated with 40% entering the shortterm
pool, 50% the medium-term pool (average
residence 5 years), 8% the long-term pool
(average residence 50 years) and 2% the
very-long-term pool (average residence 500
years). These proportions imply an average
product life of about 13 years for sawlogs.
Wood product pools decay exponentially
(different from the assumption in Ref. 1).