This page contains specific information about giant sequoia (Sequoiadendron giganteum)
'176', which can be found on the grounds of estate Voorstonden
in Voorstonden (municipality of Brummen)
Girth growth rate
The girth was measured more than once:
|Year||Girth@1.3 m||Girth@1.5 m||Measurement||Girth growth rate|
|1972||6.35 m||?||Th.H. Klinkspoor||-|
|2003||7.70 m||7.30 m||Jeroen Philippona||4 cm/year|
|2006||7.83 m||7.55 m||Jeroen Philippona||4 cm/year|
|2011||8.20 m||?||L. Goudzwaard & J. Philippona||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.
The height was measured more than once:
|1972-00-00||~33.00 m ||Th.H. Klinkspoor||Measurement method unknown|
|2003-00-00||~30.00 m||Jeroen Philippona||Measurement method unknown|
|2011-11-07||33.00 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 in 1876, which makes it exactly 137 years old (Jeroen Philippona
, Nov 19, 2011).
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The photos are provided by Jeroen Philippona
, Tim B
, Th.H. Klinkspoor, and Larsvanderwal
Show all images (11 in total)...