Ag-Natural Resources Management

Trees that are used for making paper are called

• Timber
• Pulpwood
• Lumber
• Veneer

The science management of forests is

• Silviculture
• Arboriculture
• Pomology
• Olericulture

The continental united has about____ acres if productive forests

• 450 million
• 705 million
• 500 million
• 300 million

The most important commerical species of trees in the united states

• Oak
• Douglas fir
• Redwood
• Walnut

About 75 percent of the wood for plywood is harvested from the ______ Forest region

• Northern Coniferous
• Hawaiian
• Pacific Coast
• Central Broad Leaved

The yearly demand for wood products in the United Srares is about ___ cubic feet

• 20 billion
• 31 Billion
• 23 Billion
• 19 Billion

A forest that has never been harvested is called

• Virgin
• Hardwood
• Clear cut
• seedling

The seed-tree method of harvesting

• Cuts about one-thrid of the trees in a woodlot
• Cuts all trees over a certain diameter
• Cuts all but a few trees left for seed
• Cuts all trees under a certain diamter

In a woodlot with even aged trees, the lot usually needs to be thinned when the trees are ____years old.

• 15 to 30
• 1 to 5
• 5 to 10
• 10 to 15

Which of the following was not stated as a property of wood?

• Surface Characteristics
• Color
• Bending Strength
• Nail Holding Capacity