Can we accelerate the development of old-growth associates in young forests by thinning or other management techniques?

Short answer

The following recommendations will promote the diversity and abundance of old-growth associated lichens, as well as many other groups of old-growth associated organisms:

1. Avoid "black holes" -- overstocked stands with virtually no undergrowth.

• Plant in lower densities
• Use precommercial and commercial thinning

2. Use variable-density thinnings, leaving a diversity of structural elements, such as

• hardwoods
• wolf trees
• remnant trees from previous generations
• old shrubs

3. Use green-tree retention wherever possible.

4. Avoid cutting trees in hotspot habitats, including outcrops and talus, riparian areas, ridgetops, and sites infertile because of thin or coarse-textured soils.

See long answer

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