This page contains specific information about Turkey oak (Quercus cerris)
'3580', which can be found in the park of Huize Empe
in Empe (municipality of Voorst)
Girth growth rate
The girth was measured more than once:
|Year||Girth@1.3 m||Measurement||Girth growth rate|
|2009||3.60 m||Jeroen Philippona||-|
|2011||3.22 m||L. Goudzwaard & J. Philippona||-19.0 cm/year|
The growth rate shown in the table shows the yearly average increase in girth since the last measurement. This value only gives an indication of the growth rate, since every measurement could be done at slightly different heights and during different periods of the year.
The height was measured more than once:
|2009-10-29||34.00 m ||Jeroen Philippona||Laser with Sine method (e.g. Nikon Forestry 550 laser rangefinder)|
|2009-11-01||34.00 m||Jeroen Philippona||Laser with Sine method (e.g. Nikon Forestry 550 laser rangefinder)|
|2011-11-07||34.20 m||L. Goudzwaard & J. Philippona||Laser with Sine method (e.g. Nikon Forestry 550 laser rangefinder)|
Each measurement can be done with varying accuracy.This tree was planted around the year 1880 ± 10, which makes it around 133 ± 10 years old (Jeroen Philippona
, Oct 1, 2011).
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