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Do now

Do now. Explain the picture. What do the arrows represent?. Homework Part I. Read Chapter 12 pages 321 Starting at Forest are being lost ….to 328 stopping at Fire policy also stirs controversy Quiz on Chapter 11 on tomorrow Type 4 (No peer editing) Due Friday – see handout

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Do now

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  1. Do now • Explain the picture. What do the arrows represent?

  2. Homework Part I • Read Chapter 12 pages 321 Starting at Forest are being lost….to 328 stopping at Fire policy also stirs controversy • Quiz on Chapter 11 on tomorrow • Type 4 (No peer editing) Due Friday – see handout • Vocab – 1 - 75

  3. Many kinds of forests exist • Forest = any ecosystem with a high density of trees • Boreal forest = in Canada, Scandinavia, and Russia • Tropical rainforest = South and Central America, Africa, Indonesia, and southeast Asia • Temperate deciduous forests, temperate rainforests, and tropical dry forests also exist • Woodlands = ecosystems with lower density of trees • Plant communities differ due to soil and climate • Forest types = are defined by predominant tree species

  4. Forest types • The Eastern U.S. has 10 forest types • Spruce-fir, oak-hickory, longleaf-slash pine • The Western U.S. holds 13 forest types • Douglas fir, ponderosa pine, pinyon-juniper woodlands

  5. New Material • Forests provide cultural, aesthetic, health, and recreation values • Forests also provide vital ecosystem services • Stabilize soil and prevent erosion • Slow runoff, prevent flooding, purify water • Store carbon, release oxygen, influence weather patterns, and moderate climate • Roots draw minerals to surface soil layers • Plants return organic material to the topsoil as litter

  6. New Material • Benefits of the forests: • Forests also provide vital ecosystem services • Stabilize soil and prevent erosion • Slow runoff, prevent flooding, purify water • Store carbon, release oxygen, influence weather patterns, and moderate climate • Roots draw minerals to surface soil layers • Plants return organic material to the topsoil as litter • Trees absorb carbon dioxide and store carbon • Regardless of your view point, forests store 280 billion metric tons of Carbon Dioxide

  7. New Material • Cutting forests without replanting, has negative effects on the ecosystem & the environment • Dead plants decompose and release carbon dioxide • Fewer trees soak up less carbon dioxide • Preserving forests keeps carbon out of the atmosphere as well as absorbs other pollutants.

  8. Group Work • Read pages 328 – 329 stopping at Climate Change is altering…. • As a table discuss the fire policy mentioned in the book

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