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FAQs about the Natural History of the Inside Passage
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Clear-cut near Ketchikan.
Source: SITNEWS, Ketchikan
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Clear-cutting is still the
most economical method of harvesting timber, especially
in steep terrain. The Southeast Alaska Conservation Council
estimates that 4 percent of the Tongass National Forest
contains the biggest, most productive, old-growth forest.
The lush valley-bottom and beach fringe areas are most
in demand for logging due to economies of harvesting.
However, these same areas provide critical habitat for
fish and wildlife. In the past 50 years, over half of
this habitat has been clear-cut. Compounding the problem
is that 1.7 million acres of prime old-growth forest is
on private land in the hand of Alaska Native corporations.
These lands are exempt from many of the laws and are being
clear-cut at an alarming rate.
Helicopters are used as
an alternative to clear-cutting, by harvesting selected
individual trees and leaving 75 percent of the trees in
a given area. But helicopter operations can be as much
as five times more expensive than conventional logging.
Conservationists estimate
that full recovery of an old-growth forest requires 200
years, but that will rarely happen since most secondary
growth forests will be harvested after 100 years.
Additonal Resources:
Southeast
Alaska Conservation Council – The Tongass
Alaska Rainforest Campaign
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