Answers FL-2001340-Environmental Science Sem 2Modern Forestry

Modern Forestry Answers

16 verified answers2 views

Free Preview

Which of the following about carbon sinks is not true?

They emit more carbon than they take in.

They take in more carbon they emit.

They store carbon from the atmosphere.

They include oceans and forests.

Free Preview

Forests are the only carbon sinks on Earth.

Which of the following is not part of the role of a forester?

develop sustainable practices

prevent removal of timber

determine means for continued growth

assess timber quality

How does seed-cutting differ from shelterwood cutting?

Shelterwood cutting removes all trees within a given area.

Shelterwood cutting takes place over several years.

Seed-cutting takes place over several years.

Seed-cutting is more damaging to the natural environment.

How does the destruction of forests contribute to levels of atmospheric carbon?

Levels of atmospheric carbon are unaffected by destruction of forests, because the carbon entering the carbon cycle from the dead trees balances out the loss of carbon absorption during photosynthesis.

When trees are destroyed, their stored carbon reenters the carbon cycle decreasing levels of atmospheric carbon.

Fewer trees leads to greater amounts of carbon dioxide being absorbed from the atmosphere.

Fewer trees leads to smaller amounts of carbon dioxide being absorbed from the atmosphere.

Which method of tree harvesting favors slow-growing trees that are shade-tolerant?

selective cutting

clearcutting

shelterwood

none of the above

A forester is _______

a person who cuts down trees

a park ranger

a person who manages and supervises land used for timber production

responsible for creating topographical maps of forests

Forests are the only carbon sinks on Earth.

The main purpose of a forester is to identify land for timber harvesting.

What distinguishes even-aged management practices from uneven-aged management practices?

Even-aged practices remove larger groups of trees than uneven-aged management practices.

Even-aged practices are similar to minor natural disturbances while uneven-aged practices are similar to major natural disturbances.

Even-aged practices leave areas with greater variance than uneven-aged practices.

All of the above

Even-aged management practices involves clearing trees that _______.

are all the same height

are all the same weight

are all near the same age

are all of widely different ages

Which method of tree harvesting favors slow-growing trees that are shade-tolerant?

selective cutting

clearcutting

shelterwood

none of the above

Why is clearcutting an especially damaging forestry practice for species that rely upon older trees for their survival?

Clearcutting removes all trees in a stand, old and young.

Clearcutting specifically removes older trees in a stand.

Clearcutting forces younger trees to mature faster.

Clearcutting is not a damaging forestry practice.

How do trees act as carbon sinks?

They take in carbon during the process of photosynthesis.

Carbon is stored in their tissue.

They remove carbon dioxide from the atmosphere.

All of the above

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?

approximately 10%

approximately 20%

approximately 30%

approximately 40%

Where is the carbon taken in by plants during photosynthesis stored?

the ground

plant structures

the air

all of the above

How does the destruction of forests contribute to levels of atmospheric carbon?

When trees are destroyed, their stored carbon reenters the carbon cycle decreasing levels of atmospheric carbon.

Fewer trees leads to greater amounts of carbon dioxide being absorbed from the atmosphere.

Fewer trees leads to smaller amounts of carbon dioxide being absorbed from the atmosphere.

Which of the following is a technology used by foresters?

infrared photography

aerial photography

remote sensing