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Turkey oak in the park of Huize Empe

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:
YearGirth@1.3 mMeasurementGirth growth rate
19972.94 mJeroen Philippona-
20093.18 mJeroen Philippona2 cm/year
20113.22 mL. Goudzwaard & J. Philippona2 cm/year
20143.24 mJeroen Philippona0.7 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.

Height

The height was measured more than once:
YearHeightMeasurementMeasurement method
1997~30.00 m Jeroen PhilipponaEstimate based on experience
2009-10-2934.00 mJeroen PhilipponaLaser with Sine method (e.g. Nikon Forestry 550 laser rangefinder)
2011-11-0734.20 mL. Goudzwaard & J. PhilipponaLaser with Sine method (e.g. Nikon Forestry 550 laser rangefinder)
2014-02-2334.60 mJeroen PhilipponaLaser 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 134 ± 10 years old (Jeroen Philippona, Oct 1, 2011).

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