Ecological Impacts of Deforestation

The video tutorial covers section 5.2 on clear cutting, focusing on its effects on forests. It discusses the benefits forests provide, such as air filtration, carbon storage, and biodiversity, and the consequences of deforestation, including increased carbon emissions and environmental degradation. The tutorial explains clear cutting's direct effects, like soil erosion and increased temperatures, and the impact of tree plantations on biodiversity. It concludes with a practice FRQ on ecosystem services.

What is one of the primary benefits of forests in terms of air quality?

• They produce smog.

• They filter air pollutants.

• They increase carbon dioxide levels.

• They release nitrous oxide.

How do forests contribute to biodiversity?

• By promoting monoculture.

• By eliminating invasive species.

• By providing a habitat for various organisms.

• By reducing the number of species.

What is a significant consequence of deforestation?

• Increased air filtration.

• Loss of biodiversity.

• Decrease in soil erosion.

• Enhanced carbon storage.

Which method of deforestation involves cutting and burning trees?

• Clear cutting

• Reforestation

• Slash-and-burn

• Selective cutting

What is a direct effect of clear cutting on soil?

• Decreased soil erosion

• Increased soil stability

• Increased soil erosion

• Decreased soil temperature

How does clear cutting affect stream temperatures?

• It has no effect on stream temperatures.

• It increases stream temperatures.

• It stabilizes stream temperatures.

• It decreases stream temperatures.

What is a potential ecological problem caused by clear cutting?

• Decreased flooding

• Increased flooding and landslides

• Decreased soil compaction

• Increased biodiversity

What is a characteristic of tree plantations?

• High biodiversity

• Single species forests

• Varied tree ages

• Natural forest succession

How do tree plantations affect biodiversity?

• They promote ecosystem resilience.

• They lower species diversity.

• They increase species diversity.

• They maintain natural habitats.

What is the focus of the practice FRQ for section 5.2?

• Describing ecosystem services and the impact of clear cutting

• Listing the types of forests

• Describing deforestation methods

• Explaining the benefits of tree plantations