1. 8.2 How We Use the Land
Unit 8: Land
April 16, 2009
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2. Land Use in the United States
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3. Harvesting Trees Trees have many uses.
Paper
Furniture
Lumber
Fuel
Some Trees are cut for the land that the forest is on public lands.
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4. Deforestation
Deforestation is the total removal of trees from a forest.
This destroys habitat.
Harms the soil, increases runoff.
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5. Reforestation
Replanting of trees so as not to destroy the forest habitat.
Some times monocultures are planted.
Can be at risk for disease.
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6. Protecting Forests Replanting trees Selective removal of trees.
Not planting monocultures.
Not cutting healthy trees.
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7. Protecting Forests
Proper land stewardship is important for the protection of land.
Smokey the Bear was a symbol of forest care.
Named for a bear rescued from a forest fire in Yellowstone.
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8. Ranching Ranching requires large areas of land.
National Parks are often used with or without permission.
Cattle replace native creatures for the niche.
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9. Mining Mining is a means of extracting minerals from the ground.
Open mines
Adit as seen at right.
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11. Effects of Mining
Republic Mine as seen at right, mines hematite and magnetite.
Ores or iron
Mines must go through rigorous process before mining begins.
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12. Effects of Mining
Republic Mine as seen at right, mines hematite and magnetite.
Ores or iron
Mines must go through rigorous process before mining begins.
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