________% of Earth's land area is currently covered by forest.
30
Most of the world's forests occur as
taiga and rainforest
Forests reach their greatest ecological complexity when
mature with a multi-level canopy
deforestation
has the greatest impacts in tropical areas and arid regionshas the greatest impacts in tropical areas and arid regions
second-growth forest
are forests that establish themselves after virgin timber has been removed from an area
The program Reducing Emissions from Deforestation and Forest Degradation (REDD)
gives wealthy nations carbon-offsets if they pay poorer nations to conserve forests
The arrow at the top right of the graph represents the
equilibrium point where births in the population equal deaths
Many forest resource managers aim to maintain resource populations at the position named in the question above because it
delivers the maximum sustainable timber yield
If forests are strictly managed according to the maximum sustainable yield model, some biodiversity still be lost because
species whose habitat depends on mature trees in the top canopy layer will be excluded
Fire history in an open pine woodland ecosystem would be best determined by
tree ring scars
The Sarawak tribes
were left without resources when the Malaysian government allowed clear-cutting in their forest
In the United States, most logging takes place in
conifer forests in the west and pine plantations in the south
Why do developing nations impose few or no restrictions on logging?
They are desperate for economic development.
clear-cutting
removes all trees from an area
Most commercial logging today takes place in
Canada, Russia, and Brazil
The U.N. FAO's Global Forest Resources Assessment of 2010 concluded that
deforestation has slowed but we still lose forests at the rate of 5.2 million ha/yr
Ecosystem-based timber harvesting uses methods that
leave seed-producing or mature trees uncut to provide for future forests
The National Forest Management Act ________ national forest land.
was passed in 1976 with the intent to ensure multiple use and sustainable yield of
The Healthy Forests Restoration Act ________ national forest land
directs timber companies to remove small trees, underbrush, and dead trees to reduce fires in
The latest information tells us that salvage logging
tends to produce more severe wildfires
The forests in the Upper Peninsula of Michigan from which your text book was made are
harvested using ecosystem-based management
Controlled burns would be used in forests
that are subject to severe wild fires to remove fuel load and stimulate new growth
The "roadless rule"
prohibits new road construction in national forests and was reinstated in 2009
Biosphere reserves are different from other protected areas because
Local people are allowed to live in and harvest resources from the outer areas of the reserve
A population will grow most rapidly when it is
at 50% of carrying capacity
Which of the following management practices attempts to minimize ecological impact by allowing some trees in a forest to grow to maturity?
ecosystem-based management
Which of these heavily used resources is NOT a renewable resource?
minerals
The _____ Act allowed for the U.S. president to declare national monuments.
Antiquities
