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Forest Fires

Forest Fires. Surface Fire. Burns undergrowth and leaf litter. Benefits of surface fires. Prevents larger “crown fires” Releases nutrients in fallen leaves Helps conifer seeds germinate (sequoias, pines) Reduces diseases and insects

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Forest Fires

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  1. Forest Fires

  2. Surface Fire • Burns undergrowth and leaf litter

  3. Benefits of surface fires • Prevents larger “crown fires” • Releases nutrients in fallen leaves • Helps conifer seeds germinate (sequoias, pines) • Reduces diseases and insects • Opens sections of canopy to help smaller trees grow, encourages diversity

  4. How surface fires happen • Lightning

  5. Prescribed burns • Foresters deliberately set fires

  6. Prescribed burns • Help clear buildup of underbrush • Prevents more destructive fires

  7. The Fire Triangle

  8. Today’s project • Group 1: make a poster, PowerPoint, or TV commercial about how to prevent accidental forest fires • Things to consider: • What are the dangers of these fires? • How do they affect forests? • How can they be prevented?

  9. Today’s project • Group 2: make a poster, PowerPoint, or TV commercial on the benefits of prescribed burns • Things to consider: • How to they prevent future fires? • How do they help the forest? • How are these fires controlled?

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