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• Stand size (acres)

• Plot size (BAF or fixe area size in fraction of acre)

• Number of plots

  • Total number of plots per stand

  • Number of measured plots

• Number of trees

  • Total number of 'in' trees

  • Number of tallied trees

  • Number of measured trees

  • Ratio of measured trees to total

  • Measured trees by species (total trees, ratio)

• Trees per plot

  • Average

  • Standard error (%)

  • Min (at selected confidence level)

  • Max (at selected confidence level)

  • Target sample size (at selected confidence level and allowable error level(s))**

• Basal Area

  • Average

  • Standard error (%)

  • Min (at selected confidence level)

  • Max (at selected confidence level)

  • Target sample size (at selected confidence level and allowable error level(s))**

  • Basal Area by species 

• TPA

  • Average

  • Standard error (%)

  • Min (at selected confidence level)

  • Max (at selected confidence level)

  • Target sample size (at selected confidence level and allowable error level(s))**

  • TPA by species

• QMD

  • Average

  • QMD by species

• Volume

  • Average (per acre)*

  • Total*

  • Standard error (%)*

  • Min (per acre, at selected confidence level)*

  • Max (per acre, at selected confidence level)*

  • Volume (per acre) by species*

  Required

* Typically not available. Requires an specifically formatted tree volume database.  More details on generating this database can be provided upon request

** Available at release 4.4.3

Equations

The following equations are used in the calculations described above. They are documented here to help clarify the methodology and the inputs required.

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