41 Sample tree number

The number which has been assigned to the tree during the installation of the plot.

On Level II plots the tree number should be permanently marked.

The sample tree number must be unique for a plot and must not change over time.

Note: A copy of the numbers of sample trees that were assessed the year before and which must be included in the assessment in the current year should be provided to the surveyors each year.

Further information (e.g. species) should not be supplied as repeated assessments will act as a control on the quality of the observations.