Another change in the management of industrial wood wastes
is the reduction in the amounts of waste generated. In commercialforestry applications, the amounts of waste generated in the process
from cutting a tree to delivering it to the end consumer as a
product has been reduced. Those parts of felled trees that are
unsuitable for lumber and plywood production are used in paper
production. Wastes generated during lumber and plywood production
are used in the production of composite panels, whereas bark
is used to generate energy by burning (Hahn, 1982). Blatner et al.
(2012) reported that by-products generated as a result of lumber
production in the western United States fell from 59% to 51% in
the last 40 years, despite the decline in lumber volume.