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Forest Harvesting Methods

Forest Harvesting Methods. Clear Cutting. This is the method most used ALL the trees in a certain area are cut down The stumps and underbrush that is left behind is burned. Trees Most Often Clear Cut. Pine Douglas fir. Advantages of Clear Cutting. Cheap

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Forest Harvesting Methods

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  1. Forest Harvesting Methods

  2. Clear Cutting • This is the method most used • ALL the trees in a certain area are cut down • The stumps and underbrush that is left behind is burned

  3. Trees Most Often Clear Cut • Pine • Douglas fir

  4. Advantages of Clear Cutting • Cheap • Efficient (easiest, fastest method)

  5. Disadvantages of Clear Cutting • Has to be replanted by hand (takes time and is expensive) • If left unplanted, the soil will erode

  6. Selective Cutting • Also called “Highgrading” • Small areas of big trees are cleared to leave space for smaller trees to grow

  7. Trees Most Often Selectively Cut • Cedar • Hemlock

  8. Advantage of Selective Cutting • Smaller trees will have a chance to grow much larger

  9. Disadvantages of Selective Cutting • Takes a lot of time • Other trees get in the way and make the job harder • More expensive

  10. Seed Tree Cutting • Cutting down almost all the trees in an area, but leaving a few • The few trees provide seeds to repopulate the area

  11. Patch Logging • Trees are cut down in a checkerboard pattern. • The parts that are cut down are clear cut

  12. Trees Most Often Patch Logged • Douglas fir

  13. Advantages of Patch Logging • Because so many trees are left behind, the forest reseeds itself naturally • It is cheaper than selective cutting

  14. Disadvantages of Patch Logging • New roads have to be built to get to each section of the “checkerboard” • This is expensive and takes a lot of time • After the logging is finished, the roads are no longer used, but they are cut right through the forest (ugly)

  15. Shelterwood Cutting • All the trees in a row are cut down • All the other trees are left • This is only used for trees that need shade to grow

  16. Strip Logging • A cutter uses a chainsaw to cut strips of trees in alternating rows • Allows the cutter to choose to only cut the trees he wants, or to cut the whole strip • The strips should be cut perpendicular to the wind to prevent erosion

  17. Types of Trees Most Often Strip Logged • Usually done in Boreal and Mixed Forests

  18. Advantages of Strip Logging • The forest naturally reseeds itself • It is cheaper and easier than patch logging • Not as many roads need to be built

  19. Disadvantages of Strip Logging • Really bad erosion can happen in the strips that are cut down

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