The model simulation results indicate that boreal and
subalpine evergreen coniferous forests sequester an average
of 1% (F 0.4%) of their annual NPP on a daily basis in the
spring immediately following initiation of the growing
season. In the fall, however, carbon is sequestered at a
much smaller rate of approximately 0.3% (F 0.2%) of
annual NPP per day prior to growing season termination.
These results imply that any error in determining the timing
of growing season initiation would have a threefold greater
impact relative to annual NPP than a similar error in
determining the end of the growing season.