Topic 5.2 Clearcutting

Forests provide habitat for countless organisms; helps maintain the quality of soil, air, and water; play key roles in planet's biogeochemical cycles; provide humanity with resources such as wood for fuel, construction, paper production. These are examples of _____.

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NGSS.MS-LS2-3

Name one of the levels you would find in a forest.

These types of forests have regenerated from native forests, which have been cleared for man-made causes, such as agriculture or ranching

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NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-4

This management system aims to minimize impact on the ecosystems and ecological processes that provide the resource.

• Adaptive management

• Maximum sustainable yield

• Ecosystem based management

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NGSS.MS-LS2-5

This type of harvesting greatly reduces biodiversity

• clear cutting

• strip cutting

• selective cutting

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NGSS.MS-LS2-5

Expensive and time consuming form of forest harvesting.

• Clear cutting

• Strip cutting

• Selective cutting

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NGSS.MS-LS2-5

Industrial logging threatens many forested ecosystems. Which of the following environmental consequences will most likely result from clear-cutting deciduous forests for logging?

• Farmers will be able to utilize more land, resulting in a decrease in the number of floods.

• Less oxygen will be used by the trees, so more oxygen will be in the atmosphere for humans and other animals to use.

• More carbon dioxide will be added to the atmosphere and increase anthropogenic climate change.

• The regulating services of the area, such as nutrient cycling and water regulation, would increase with fewer trees in the landscape.

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NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following accurately describes a benefit of concentrated animal feeding operations (CAFOs)

?

• Concentrated animal feeding operations produce a large amount of manure, which is then often held in large manure lagoons.

• The animals raised in concentrated animal feeding operations are usually grass-fed and therefore less susceptible to disease.

• Concentrated animal feeding operations are efficient and relatively low-cost facilities that help keep consumer costs low.

• When animals are kept in large concentrations in a small area, the water quality of local waterways is protected from excess runoff.

Vegetarianism is often cited as a partial solution to the growing problem of deforestation and other types of habitat destruction as the human population continues to grow. The reason for this is

• vegetarians are healthier due to a lack of animal fat in their diets

• more people can be fed using less agricultural land because vegetarians eat at a lower trophic level

• vegetarians consume fewer calories per person and therefore require fewer acres of farmland

• vegetarian diets often recommend consuming large amounts of tree nuts as a source of protein, which preserves forest habitats

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NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following is a greenhouse gas that is produced by domestic livestock?

• CO2

• O3

• CO

• CH4