Table 2 summarizes carbon stocks and other
parameters for sustainable timber management,
unsustainable (one-time) logging and forest in
1990 (virtually all of which was outside of
managed areas). The carbon benefits or losses
attributable to sustainable timber management
will obviously be very different depending on
whether one assumes that the alternative is
the uncut forest or whether it is unsustainable
logging or deforestation. As compared to forest,
sustainable timber management represents a
net carbon loss, the accumulations in forest
products being insufficient to compensate for
losses of forest biomass over the 90 year time
horizon used for timber management and
logging (three 30 year management cycles).