Surveys > GR

Assessment of Growth and Increment Level II

Survey code: GR (Level II)

Monitoring System: Level II

Survey frequency:

  • periodic measurements: mandatory every 5 years on all trees

  • continuous measurements: optional on selected trees

Forms

  • PLI: Plot file

  • IPM: Periodic growth data on tree level (mandatory every 5 years)

  • INV: Periodic growth data on plot level (mandatory every 5 years)

  • IRA: Tree ring and stemdisk analysis - increment information (OPTIONAL until 2010*)

  • IRH: Tree ring and stemdisk analysis – Header information (OPTIONAL)

  • IRM: Tree ring and stemdisk analysis – Measurements (OPTIONAL)

  • IRP: Diameter (girthband or dendrometer) measurements (OPTIONAL)

  • IEV: Evaluated data on increment (OPTIONAL)

Special Notes

* The form IRA is not in use since 2011, it was then replaced by IRH / IRM. When resubmitting data from before 2011, please use forms IRH / IHM instead of IRA if possible.

The increment data collected on the Level II plots will not be suitable for extrapolating to larger areas. In this respect, the plots should be seen as permanent monitoring plots and not as inventory plots.