Forestry Unit Review

Underground structures that anchor the tree and take up water, nutrients and minerals from the soil.

• Roots

• Inner bark

• Outer Bark

• Trunk

How many different products can be made from trees?

• about 200

• over 5,000

• 1,000

• 500

The tiny fibers that make up wood.

• chlorophyll

• cellulose

• glucose

• wood pulp

A stand is a unit of trees in the forest that must be the same size.

• True

• False

Clear cutting is

• when small groups of mature trees are harvested and intermediate size trees are thinned frequently.

• a harvesting method removes certain trees to establish new seedling growth under the protection of the trees that are left.

• A system that requires removing all trees in a stand. Seedlings are planted to establish a new stand.

• A system that removes the majority of mature trees but leaves a few good seed-producing trees.

Shelterwood system

• Each tree’s individual merit is considered and the trees are selectively harvested as they mature, leaving the majority of trees on a site standing.

• Small groups of mature trees are harvested and intermediate size trees are thinned frequently.

• This harvesting method removes certain trees to establish new seedling growth under the protection of the trees that are left. Enough mature trees are left to shelter the site until the new growth is well established.

• A system that removes the majority of mature trees but leaves a few good seed-producing trees.

Prescribed burning is

• a planned fire and forest management tool.

• an accidental fire caused by lightening strike.

• a fire set by a person to purposely cause destruction and harm.

Which stage of succession is a mature forest in?

• The beginning

• The middle

• The end

• None of these

Which of these is NOT a way that trees help ecosystems?

• Keeping soils cool

• Preventing erosion

• Preventing flooding

• Decreasing available habitat

How old would you estimate this tree to be?

• Around 25 years

• Around 50 years

• Around 10 years

• Around 100 years