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Modern Forestry

Sylvie Cox avatar Sylvie Cox
25 July 2022
4.7 (114 reviews)
20 test answers

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question
Explain how a forester can make sure that an area is harvested sustainably.
answer
Foresters are responsible for determining areas that can be harvested sustainably and helps monitor areas to be harvested. Foresters determine which areas have trees that can be removed without causing harm to the environment and ensures that areas are not overharvested.
question
The amount of carbon removed by forests in the United States each year is equal to _______.
answer
a. 3390 semi-trucks full of carbon
question
Which of the following forest management practices is the most harmful to forest ecosystems?
answer
a. clearcutting
question
Removing a specific group of trees within a small area over a long period of time is _______.
answer
c. group selection
question
Which of the following statements about forestry education is true?
answer
d. Some states have greater access to forestry programs than others.
question
Compare the practices of shelterwood cutting, clearcutting, and seed-tree cutting.
answer
Clearcutting removes all the trees within a certain area at one time. Shelterwood cutting also removes all the trees in an area, but does it in stages over several years. Seed-tree cutting removes all the trees except for a select number of mature trees that can then reseed the area. Seed-tree cutting and shelterwood cutting allow for the harvested areas to recover over time without direct intervention.
question
Compare group selection to single-tree selection.
answer
Group selection and single-tree selection are both uneven-aged management practices. These practices both help protect wildlife habitats and allow for continued regeneration of forest areas that are used for harvesting. Group selection removes a small portion of trees in an area over a number of years. Single-tree selection removes specific individuals in an area. Both management practices have associated benefits and disadvantages.
question
List the main responsibilities of a forester.
answer
A forester's main responsibilities are to develop plans for growth and sustainability, assess the viability of timber in an area, assess an area for possible issues, and monitor the health of timber in an area.
question
When is the carbon stored in plants released?
answer
c. when they die
question
Explain how the destruction of forests affects atmospheric levels of carbon.
answer
Destruction of forests affects the levels of atmospheric carbon in two ways. With less trees pulling carbon dioxide from the atmosphere during the process of photosynthesis, atmospheric levels of carbon will increase. Also, when forests are destroyed the carbon that is stored in trees enters the carbon cycle, ultimately reentering the atmosphere.
question
What fraction of the fossil fuel emissions in the United States could be absorbed by converting 25% of agricultural land in the U.S. to native forests?
answer
b. approximately 20%
question
Where is the carbon taken in by plants during photosynthesis stored?
answer
b. plant structures
question
Which of the following about carbon sinks is not true?
answer
a. They emit more carbon than they take in.
question
A forester is _______
answer
c. a person who manages and supervises land used for timber production
question
The main purpose of a forester is to identify land for timber harvesting.
answer
false
question
What distinguishes even-aged management practices from uneven-aged management practices?
answer
a. Even-aged practices remove larger groups of trees than uneven-aged management practices.
question
Even-aged management practices involves clearing trees that _______.
answer
c. are all near the same age
question
Why is clearcutting an especially damaging forestry practice for species that rely upon older trees for their survival?
answer
a. Clearcutting removes all trees in a stand, old and young.
question
Reforestation always occurs as a result of human intervention.
answer
false
question
Which method of tree harvesting favors slow-growing trees that are shade-tolerant?
answer
a. selective cutting