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Lesson 1 – Regeneration Methods

Lesson 1 – Regeneration Methods. Forest Science I Unit 6 – Reforestation Original by Jonathan H. Stribling December 3, 2001 Modified by Georgia Agriculture Education Curriculum Office July 2004 And CTAE Resource Network, 2010. Two Basic Types of Regeneration. Natural Artificial.

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Lesson 1 – Regeneration Methods

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  1. Lesson 1 – Regeneration Methods Forest Science I Unit 6 – Reforestation Original by Jonathan H. Stribling December 3, 2001 Modified by Georgia Agriculture Education Curriculum Office July 2004 And CTAE Resource Network, 2010

  2. Two Basic Types of Regeneration • Natural • Artificial

  3. Natural Regeneration Advantages: • Low cost • Less labor and equipment required • Good early root development • Minimal visual impact • Less Soil erosion

  4. Natural Regeneration Disadvantages • Less Control of Spacing and Stocking • Generally lower yield • No genetic improvement • No increased disease resistance • Possible Pre-commercial thinning required

  5. Methods of Natural Regeneration • Seedtree • Shelterwood

  6. Seed Tree • Most popular natural regeneration method • Leave 6-8 (10) trees per acre to reseed • Trees left need to be evenly distributed over area to be regenerated • Disadvantage -- Often cannot get a logger to come back for such a light volume of wood

  7. Shelter Wood • Leaves more trees than seed tree (25-60) • Must plan ahead • Must control pioneer species in all regeneration methods (start 5 yrs or so before shelter wood cut. • Careful selection in deciding which trees to leave

  8. Artificial Reforestation • Clearcut followed by either planting seedlings or direct seeding.

  9. Artificial Reforestation Advantages • Control of Spacing and Stocking • Use of Genetically Improved Seedlings • Disease Resistant Seedlings • Allows for Change in Species

  10. Artificial Reforestation Disadvantages • Homogenous Stand – More Susceptible • Visually Displeasing to Some People Some political action groups rally against artificial methods of reforestation.

  11. Clear Cutting • Precedes planting seedlings or direct seeding • Cuts basically all timber off property

  12. Artificial Regeneration • Planting Seedlings Hoedad Dibble Machine An experienced planter may plant 1000 seedlings per day manually!!!!!

  13. Reforestation • Method Chosen will primarily depend on landowner objectives!!

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