1. Shelterwood and clearcut
Evenage Management
Shelterwood and clearcut

2. Shelterwood Regeneration cut Modify environment of regen
Provide seed source

3. Gradient
Few Trees Removed
Many Trees Removed

4. Gradient Large Effect on Forest Floor Environment
Small Effect on Forest Floor Environment

5. Gradient
Group Selection
Clearcut
Single Tree Selection
Shelterwood

6. Even-age regeneration
Length of regeneration time varies by circumstance

7. Process Create available growing space for regen
Removal of part of the overstory
Remove remaining overstory before growth of regen is overly inhibited

8. Stages
Prep cut(s)
Final removal

9. Difference from Thinning
Purpose is regeneration
Main objective is not future growth of residual stand
Can be secondary objective

10. Usually for natural regeneration
Can be supplemented with planting
Species
More uniform stocking

11. Classic 3-cut Shelterwood

12. Money Upfront

13. Irregular shelterwood

14. Strip shelterwood

15. One cut shelterwood

18. Framework
Age structure
Species composition
Disturbance regime

19. Yield
Growth of regen
Growth of remaining overstory

20. Possibility of carrying some trees into next rotation
Not part of “shelterwood” per se
A variation worth considering
Turns a single cohort stand into a two cohort stand

22. Veg Management Difficult
Major problem if competition is more shade tolerant than the desired species

24. Logging equipment Almost anything can be used
Cable on steep slopes can be difficult

27. Cost Can be lowest cost Two or more harvests
Increased growth of overstory
Regen can be cheap

28. Aesthetically desirable
Continuous green cover

31. Clearcuts

32. Framework
Age structure
Species composition
Disturbance regime

33. How is clearcut unique? Regeneration method
Regeneration all comes after harvest

34. Gradient
Group Selection
Clearcut
Single Tree Selection
Shelterwood

35. Timing Age structure Stage of development Stem exclusion
Understory reinitiation

36. Regulated forest
Volume regulation
Area regulation

37. Adjacency
Green-up
Wildlife corridors

38. This is clearcutting gone wild.
Progressive clearcutting was a normal practice up until the early 1990’s. Often due to windthrow or insect outbreaks in overmature forests.
Can you see why people might object to this?

39. Species composition Shifting competitive advantage Multiple pathways
Shade tolerance

40. Site preparation Ease of moving equipment Broadcast burning
stumping
Broadcast burning
Green planting

41. Vegetation management
Varying shade is not an issue
Different life forms
Stage of development

42. Operations
Constraints
Past and future operations

43. This is a clearcut with riparian reserves
This is a clearcut with riparian reserves. If these openings were smaller they would be patch-cuts.

44. This is a clearcut

45. Skidtrail layout Permanent Temporary How to mark
Can’t be based just on current timber
Minimize total compaction
Temporary

46. Cable settings Road location Green tree retention issues
Course wood debris issues

47. Processing Landing Roadside Separate equipment? Limbing Bucking
Loading

48. Costs
Always considered the low cost
Gap may be closing

49. Layout Road layout Green-up Wildlife considerations
Construction costs
Green-up
Wildlife considerations
Riparian considerations

50. Salvage
Fire
Beetle
Snags

51. Aesthetics
Biggest concern
Topography
Near / far
“Other” activities

52. Slash disposal
Broadcast burn
Pile and burn
Leave in place

53. Legacy
Biodiversity
Course woody debris