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!!