Front

What are the five parts of the mature forest structure?

Back

Canopy, subcanopy, snag, understory, forest floor.

Front

What is clear cutting in forestry?

Back

A method of timber harvesting that mimics natural disasters, causes soil erosion, and displaces entire communities of organisms.

Front

Which timber harvesting method is the most costly for a timber company?

Back

Selection system.

Front

How many acres does the US national forest system consist of?

Back

Approximately 193 million acres.

Front

What is an old growth forest?

Back

A forest that has never been logged.

Front

Define 'canopy' in the context of forest structure.

Back

The upper layer of a forest formed by the crowns of tall trees.

Front

What is the role of the understory in a forest?

Back

It provides habitat for various species and consists of smaller trees and shrubs beneath the canopy.

Front

Explain the term 'snag' in forestry.

Back

A standing dead tree that provides habitat for wildlife.

Front

What is the purpose of the shelterwood approach in timber harvesting?

Back

To gradually harvest trees while maintaining a continuous forest cover.

Front

What are the environmental impacts of clear cutting?

Back

It can lead to soil erosion, loss of biodiversity, and disruption of ecosystems.