1 Definition of a Silvicultural System 4 The Decision Process Appendix 1 Answer Key
2 Major Types of Systems 5 There's More to Learn Appendix 2 Advantages and Disadvantages
3 Variations of Major Types 6 Implementation Appendix 3 References

Persistent Leave-trees

Consider the coastal BC forester who wishes to use a seed tree system in a dry second-growth Douglas-fir stand on southeastern Vancouver Island. With appropriate site preparation she will rely on the seed trees to naturally restock the block. However, she would like to retain the seed trees, or a certain proportion of them, for the rest of the rotation to satisfy some non-timber objectives.

Leave-trees at 5 and 30 years.

  1. What does she call this silvicultural system?

  1. In a similar stand on a richer site in the Coastal Western Hemlock zone, the forester wants to leave the mature trees throughout the rotation. She is not planning for any natural regeneration; instead, the site will be planted. What does she call this system?

Answers. For discussion of this case study, see the section about reserves.

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Case Study