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Stand-level Biodiversity Constraints in Potential Revisions 2007 Checklist/Protocol

This checklist/protocol examines the stand-level biodiversity constraints in Potential Revisions 2007, including the collection of data, modifications to average retention, and the impact on various types of terrain and vegetation. It also discusses the evaluation of data quality and criteria for labeling clear-cuts and dispersed retention areas.

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Stand-level Biodiversity Constraints in Potential Revisions 2007 Checklist/Protocol

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  1. Potential Revisions2007 checklist/protocol Stand-level Biodiversity

  2. Constraints • Why collect this data? • Modifies the total average retention

  3. Would it have been left anyway?

  4. Wetland • RMZ • RRZ • Rock outcrop • Non-commercial brush • Non-merch • Sensitive terrain

  5. Invasive Plants • How good is our data?

  6. When is a stratum a clear-cut? • If a stratum is CC: • No basal area equivalency • No windthrow, constraint or ecological anchor

  7. When do a few trees change the type to DO from CC? Proposal: If dispersed trees >0.1 ha patch then must call stratum dispersed. OK to call stratum with <0.1 ha of retention dispersed.

  8. # of trees = 0.1 ha patch

  9. CC/DO Conclusion • Don’t go to extremes to sample trees if likely <0.1ha equivalent • If in doubt – go ahead and label as DO • A CC label means you think any retention sums up to <0.1ha. • Tree found in plots (e.g. 30 m radius) should always be tallied

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