A semi-empirical model designed to stimulate seasonal and midsummer al
bedo of a northern tolerant hardwood stand following clearcutting was
developed from field determinations conducted in west-central Neu Brun
swick. In this model, changes in albedo are related to (1) vegetative
regrowth (spreading of newly developing foliage over the cut area); (2
) the gradual addition of vegetation layers within the forest canopy;
and (3) seasonal variations from bud burst to fall. The field data ind
icated that (1) cutting reduced the albedo; (2) foliage regrowth rapid
ly increased the albedo to a maximum similar to that of a continuous s
ingle leaf layer within a few years after the cutting operation; (3) d
eepening of the canopy gradually decreased the albedo after its initia
l peak; and (4) albedo values were highest in early summer, except in
the first year after the cutting operation.